Re: [Emc-users] Freecad path workbench + drilling small hole

[John Dammeyer]

> > > > On Thu, Oct 20, 2022 at 7:39 AM Nicklas SB Karlsson 
> > > > wrote:
> > > >
> > > > >
> > > > > Have registered to Freecad mailing lists and posted on at least
> > > > > one
> > > > > of
> > > > > them but they seems dead. Anybody else activing in Freecad?
> > >
> >
> > Yes mailing-lists are dead.
> >
> > Main place for community is definitely the forum, which is even
> > integrated
> > into development process.
> Joined the forum. Then possible i often find mailing list more
> convenient.
> 

I too find mailing lists more convenient although the forums are nice for 
looking at back postings or threads. 

John



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad path workbench + drilling small hole

[Nicklas SB Karlsson]

fre 2022-10-21 klockan 09:20 +0200 skrev Jérémie Tarot:
> Le jeu. 20 oct. 2022 à 20:05, Nicklas SB Karlsson  a
> écrit :
> 
> > tor 2022-10-20 klockan 10:31 -0700 skrev Chris Albertson:
> > > On Thu, Oct 20, 2022 at 7:39 AM Nicklas SB Karlsson 
> > > wrote:
> > > 
> > > > 
> > > > Have registered to Freecad mailing lists and posted on at least
> > > > one
> > > > of
> > > > them but they seems dead. Anybody else activing in Freecad?
> > 
> 
> Yes mailing-lists are dead.
> 
> Main place for community is definitely the forum, which is even
> integrated
> into development process.
Joined the forum. Then possible i often find mailing list more
convenient.



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad path workbench + drilling small hole

[Jérémie Tarot]

Le jeu. 20 oct. 2022 à 20:05, Nicklas SB Karlsson  a écrit :

> tor 2022-10-20 klockan 10:31 -0700 skrev Chris Albertson:
> > On Thu, Oct 20, 2022 at 7:39 AM Nicklas SB Karlsson 
> > wrote:
> >
> > >
> > > Have registered to Freecad mailing lists and posted on at least one
> > > of
> > > them but they seems dead. Anybody else activing in Freecad?
>

Yes mailing-lists are dead.

Main place for community is definitely the forum, which is even integrated
into development process.

You can also join the chat rooms.

All informations are available here https://wiki.freecadweb.org/Help

Note that chats are also bridged on Matrix


Thanks, will try the forum to get in contact with other people working
> on the path module.
>


The Path WB team is available directly on Matrix
https://matrix.to/#/!CWcGgGiwjVLeuMQaGI:gitter.im

Use the Element client to join

See you there :)

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad path workbench + drilling small hole

[Jérémie Tarot]

Le jeu. 20 oct. 2022 à 22:52,  a écrit :

> Spot drills are also available in carbide which is much stiffer than a HSS
> spot drill.
> For best accuracy, the tip angle of the spot drill should be greater than
> the angle of your drill. That is, for a 118-degree drill a spot drill of
> 120 degrees or more is best.
>

This ⬆️

Also, carbide drills usually don't require spot drilling.

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad path workbench + drilling small hole

[ken.strauss]

Spot drills are also available in carbide which is much stiffer than a HSS spot 
drill.
For best accuracy, the tip angle of the spot drill should be greater than the 
angle of your drill. That is, for a 118-degree drill a spot drill of 120 
degrees or more is best.

-Original Message-
From: Nicklas SB Karlsson  
Sent: October 20, 2022 2:11 PM
To: emc-users@lists.sourceforge.net
Subject: Re: [Emc-users] Freecad path workbench + drilling small hole

Center drill is 60 degree angle. It have thick shaft which is good but thinner 
tip.

Spot drill is 90 degree angle and have found statements it is made fo precise 
bore hole placement so muste be a good choice. Will try the spot drill to make 
a dent, probably 8mm to get a stiff shaft. Or maybe drill the hole with the 
spot drill as material is rather thin.


Nicklas Karlsson


tor 2022-10-20 klockan 13:11 -0400 skrev Matthew Herd:
> Or (preferably) use a spot drill, which is even more robust.  They 
> typically have a 90 degree point angle and are very rigid.
> 
> > On Oct 20, 2022, at 12:59 PM, Thomas J Powderly 
> > wrote:
> > 
> > Hi Nicklas
> > 
> > always center drill first
> > 
> > tomp
> > 
> > On 10/20/22 9:23 PM, Nicklas SB Karlsson wrote:
> > > There is some things missing in the Freecad path workbench of 
> > > which some are rather simple to fix. Zig facing operation, rigid 
> > > tapping, G95 feed per revolution or tooth is not possible and 
> > > these are probably not to hard to fix. While reorder and get blank 
> > > from machining of previous operation might be harder.
> > > 
> > > Have been able to figure a little bit on the data model add a zig 
> > > function but had to disable some kind of sorting function 
> > > sometimes changing direction of cut, probably to get shortest 
> > > path.
> > > 
> > > Have registered to Freecad mailing lists and posted on at least 
> > > one of them but they seems dead. Anybody else activing in Freecad?
> > > 
> > > 
> > > Just starting to machine my first parts milling seems to work 
> > > rather well. Drilling small holes a few millimeters I am however a 
> > > little bit uncertain it work well to start a hole with a normal 
> > > length drill? Or start point tend to slip a little bit on the 
> > > surface?
> > > 
> > > 
> > > Nicklas Karlsson
> > > 
> > > 
> > > 
> > > ___
> > > Emc-users mailing list
> > > Emc-users@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/emc-users
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
> 
> 
> 
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users




___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad path workbench + drilling small hole

[Ralph Stirling]

Use a spot drill before the small drill to get the hole on center
and true.  "Real" CAM software usually lets you select spot drilling
for each hole.  Then it generates tool path for the spot drill operation
before tool path for the regular drill.

I would love for FreeCAD to gain the features other CAD/CAM software
has.  I keep trying it out, but keep getting stuck with some key missing
piece.  I haven't made the commitment to get involved in development
though.  They came out with a new release fairly recently, so I believe
it is under active development.

-- Ralph

From: Nicklas SB Karlsson [n...@nksb.eu]
Sent: Thursday, October 20, 2022 7:23 AM
To: emc-users@lists.sourceforge.net
Subject: [Emc-users] Freecad path workbench + drilling small hole

CAUTION: This email originated from outside the Walla Walla University email 
system.


There is some things missing in the Freecad path workbench of which
some are rather simple to fix. Zig facing operation, rigid tapping, G95
feed per revolution or tooth is not possible and these are probably not
to hard to fix. While reorder and get blank from machining of previous
operation might be harder.

Have been able to figure a little bit on the data model add a zig
function but had to disable some kind of sorting function sometimes
changing direction of cut, probably to get shortest path.

Have registered to Freecad mailing lists and posted on at least one of
them but they seems dead. Anybody else activing in Freecad?


Just starting to machine my first parts milling seems to work rather
well. Drilling small holes a few millimeters I am however a little bit
uncertain it work well to start a hole with a normal length drill? Or
start point tend to slip a little bit on the surface?


Nicklas Karlsson



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.sourceforge.net%2Flists%2Flistinfo%2Femc-usersdata=05%7C01%7Cralph.stirling%40wallawalla.edu%7Cda17bf30489f4b2e9d2508dab2a83875%7Cd958f048e43142779c8debfb75e7aa64%7C0%7C0%7C638018732840156150%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7Csdata=QQ3gP27PWvNAqTLWYHEiecQKqA5TqDk58Y%2BzTTDuXsE%3Dreserved=0


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad path workbench + drilling small hole

[Nicklas SB Karlsson]

Center drill is 60 degree angle. It have thick shaft which is good but
thinner tip.

Spot drill is 90 degree angle and have found statements it is made fo
precise bore hole placement so muste be a good choice. Will try the
spot drill to make a dent, probably 8mm to get a stiff shaft. Or maybe
drill the hole with the spot drill as material is rather thin.


Nicklas Karlsson


tor 2022-10-20 klockan 13:11 -0400 skrev Matthew Herd:
> Or (preferably) use a spot drill, which is even more robust.  They
> typically have a 90 degree point angle and are very rigid.
> 
> > On Oct 20, 2022, at 12:59 PM, Thomas J Powderly 
> > wrote:
> > 
> > Hi Nicklas
> > 
> > always center drill first
> > 
> > tomp
> > 
> > On 10/20/22 9:23 PM, Nicklas SB Karlsson wrote:
> > > There is some things missing in the Freecad path workbench of
> > > which
> > > some are rather simple to fix. Zig facing operation, rigid
> > > tapping, G95
> > > feed per revolution or tooth is not possible and these are
> > > probably not
> > > to hard to fix. While reorder and get blank from machining of
> > > previous
> > > operation might be harder.
> > > 
> > > Have been able to figure a little bit on the data model add a zig
> > > function but had to disable some kind of sorting function
> > > sometimes
> > > changing direction of cut, probably to get shortest path.
> > > 
> > > Have registered to Freecad mailing lists and posted on at least
> > > one of
> > > them but they seems dead. Anybody else activing in Freecad?
> > > 
> > > 
> > > Just starting to machine my first parts milling seems to work
> > > rather
> > > well. Drilling small holes a few millimeters I am however a
> > > little bit
> > > uncertain it work well to start a hole with a normal length
> > > drill? Or
> > > start point tend to slip a little bit on the surface?
> > > 
> > > 
> > > Nicklas Karlsson
> > > 
> > > 
> > > 
> > > ___
> > > Emc-users mailing list
> > > Emc-users@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/emc-users
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
> 
> 
> 
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users




___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad path workbench + drilling small hole

[Nicklas SB Karlsson]

tor 2022-10-20 klockan 10:31 -0700 skrev Chris Albertson:
> On Thu, Oct 20, 2022 at 7:39 AM Nicklas SB Karlsson 
> wrote:
> 
> > 
> > Have registered to Freecad mailing lists and posted on at least one
> > of
> > them but they seems dead. Anybody else activing in Freecad?
> > 
> 
> Dead?   There have been a dozen forum posts today, and it is still
> morning
> https://forum.freecad.org/

Thanks, will try the forum to get in contact with other people working
on the path module.



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad path workbench

[Nicklas SB Karlsson]

tor 2022-10-20 klockan 10:31 -0700 skrev Chris Albertson:
> On Thu, Oct 20, 2022 at 7:39 AM Nicklas SB Karlsson 
> wrote:
> 
> > 
> > Have registered to Freecad mailing lists and posted on at least one
> > of
> > them but they seems dead. Anybody else activing in Freecad?
> > 
> 
> Dead?   There have been a dozen forum posts today, and it is still
> morning
> https://forum.freecad.org/
> 

Indeed there is. There is also activity on path module.

Registered on free-cad-gene...@lists.sourceforge.net and could only
hear myself. There is another for development, registered there to,
nothing recieved but did not test to post.


Nicklas Karlsson



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad path workbench + drilling small hole

[Chris Albertson]

On Thu, Oct 20, 2022 at 10:14 AM Matthew Herd  wrote:

> Or (preferably) use a spot drill, which is even more robust.


I think he was asking about how to modify FreeCAD software, not how to
drill a hole.  Perhaps modify the G-code generator to do as you say and
add a tool-change.  But how does the planner know when best to change the
tool?

FreeCAD's path planner is pretty good but still in the early stages.  I
know many people like to hand-code g-code files, but just try to make the
housing for a battery-powered electric drill with hand-written g-code.  One
side of the housing is very mechanical with bearing and motor supports and
blind thread and the outside is all organic compound curves.
-- 

Chris Albertson
Redondo Beach, California

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad path workbench + drilling small hole

[Chris Albertson]

On Thu, Oct 20, 2022 at 7:39 AM Nicklas SB Karlsson  wrote:

>
> Have registered to Freecad mailing lists and posted on at least one of
> them but they seems dead. Anybody else activing in Freecad?
>

Dead?   There have been a dozen forum posts today, and it is still morning
https://forum.freecad.org/


-- 

Chris Albertson
Redondo Beach, California

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad path workbench + drilling small hole

[Matthew Herd]

Or (preferably) use a spot drill, which is even more robust.  They typically 
have a 90 degree point angle and are very rigid.

> On Oct 20, 2022, at 12:59 PM, Thomas J Powderly  wrote:
> 
> Hi Nicklas
> 
> always center drill first
> 
> tomp
> 
> On 10/20/22 9:23 PM, Nicklas SB Karlsson wrote:
>> There is some things missing in the Freecad path workbench of which
>> some are rather simple to fix. Zig facing operation, rigid tapping, G95
>> feed per revolution or tooth is not possible and these are probably not
>> to hard to fix. While reorder and get blank from machining of previous
>> operation might be harder.
>> 
>> Have been able to figure a little bit on the data model add a zig
>> function but had to disable some kind of sorting function sometimes
>> changing direction of cut, probably to get shortest path.
>> 
>> Have registered to Freecad mailing lists and posted on at least one of
>> them but they seems dead. Anybody else activing in Freecad?
>> 
>> 
>> Just starting to machine my first parts milling seems to work rather
>> well. Drilling small holes a few millimeters I am however a little bit
>> uncertain it work well to start a hole with a normal length drill? Or
>> start point tend to slip a little bit on the surface?
>> 
>> 
>> Nicklas Karlsson
>> 
>> 
>> 
>> ___
>> Emc-users mailing list
>> Emc-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/emc-users
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad path workbench + drilling small hole

[Thomas J Powderly]

Hi Nicklas

always center drill first

tomp

On 10/20/22 9:23 PM, Nicklas SB Karlsson wrote:

There is some things missing in the Freecad path workbench of which
some are rather simple to fix. Zig facing operation, rigid tapping, G95
feed per revolution or tooth is not possible and these are probably not
to hard to fix. While reorder and get blank from machining of previous
operation might be harder.

Have been able to figure a little bit on the data model add a zig
function but had to disable some kind of sorting function sometimes
changing direction of cut, probably to get shortest path.

Have registered to Freecad mailing lists and posted on at least one of
them but they seems dead. Anybody else activing in Freecad?


Just starting to machine my first parts milling seems to work rather
well. Drilling small holes a few millimeters I am however a little bit
uncertain it work well to start a hole with a normal length drill? Or
start point tend to slip a little bit on the surface?


Nicklas Karlsson



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

[Emc-users] Freecad path workbench + drilling small hole

[Nicklas SB Karlsson]

There is some things missing in the Freecad path workbench of which
some are rather simple to fix. Zig facing operation, rigid tapping, G95
feed per revolution or tooth is not possible and these are probably not
to hard to fix. While reorder and get blank from machining of previous
operation might be harder.

Have been able to figure a little bit on the data model add a zig
function but had to disable some kind of sorting function sometimes
changing direction of cut, probably to get shortest path.

Have registered to Freecad mailing lists and posted on at least one of
them but they seems dead. Anybody else activing in Freecad?


Just starting to machine my first parts milling seems to work rather
well. Drilling small holes a few millimeters I am however a little bit
uncertain it work well to start a hole with a normal length drill? Or
start point tend to slip a little bit on the surface?


Nicklas Karlsson



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[Jérémie Tarot]

Le mar. 25 janv. 2022 à 10:23, andrew beck  a
écrit :

> Hey guys check this out
>
> Free cad is getting way better
>
> https://youtu.be/U9630DAmOA0



Yes indeed! Join us patroning Path workbench

https://www.patreon.com/sliptonic

And thanks for pointing to that unknown channel 

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

[Emc-users] Freecad

[andrew beck]

Hey guys check this out

Free cad is getting way better

https://youtu.be/U9630DAmOA0

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

[Emc-users] Freecad update

[Nicklas SB Karlsson]

As it was discussed before. Trying again I found "check for update and" 
button + "update" button download a new appimage, doing it is several 
times download it several. To run the new first press quit button and 
then execute the new version.




___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Todd Zuercher]

Sorry, that is (was) probably my fault.  I read the mailing list from work on a 
windows machine using Outlook, and for some reason it keeps flagging mail from 
certain individuals as spam.  (I have not been able to figure it out.  Marking 
the senders as trusted only stopped their messages from ending up in the junk 
folder, but not the labeling.  I'll try to do better at removing the "SPAM" 
label when replying in the future. 

Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street 
Dalton, Ohio 44618
Phone:  (330)828-2105ext. 2031

-Original Message-
From: Stuart Stevenson  
Sent: Wednesday, September 23, 2020 12:50 AM
To: Enhanced Machine Controller (EMC) 
Subject: Re: [Emc-users] SPAM: Re: freecad, latest, starter tut?

[EXTERNAL EMAIL] Be sure links are safe.

Orient the part to zero using translation routines.

On Tue, Sep 22, 2020, 11:45 PM TJoseph Powderly  wrote:

> Stop labelling messages as SPAM
> HTH can we have topics labelled SPAM this and SPAM that?
> Stop replying to threads SPAM* !
> Who is playing Judge or God here fingering witches?
> STOP
> The topics and labels on this list are already _barely_ connected to OP.
> tomp
>
> On Tue, Sep 22, 2020 at 11:10 PM Chris Albertson 
>  wrote:
> >
> > I think the bottom line with FreeCAD is that is working fine if you 
> > need
> to
> > make one part and 3D print it.  But it is not quite ready for 
> > complex machine design or making parts with subtractive machine tools 
> > (lathes and
> > mills)   But it covers maybe 90% of hobbyist use cases.   This email list
> > where (we assume) everyone has access to CNC is kind of the 
> > exception in the hobby/maker world.
> >
> > If you are making a living at this, just buy a license for a 
> > top-tier product.  Time is money.
> >
> > On Mon, Sep 21, 2020 at 10:42 PM Frank Tkalcevic < 
> > fr...@franksworkshop.com.au> wrote:
> >
> > > I was impressed that FreeCAD could import lots of different CAD
> formats.  I
> > > tried to use the CAM (Path) on an old STEP file, but I couldn't 
> > > work
> out
> > > how
> > > to orient my part, and set the origin to the bottom-left top 
> > > corner of
> the
> > > box stock.  Reading the forums, it seems that isn't possible (talk 
> > > of
> local
> > > coordinate systems, but no implementation).
> > >
> > > -Original Message-
> > > From: Todd Zuercher [mailto:to...@pgrahamdunn.com]
> > > Sent: Tuesday, 22 September 2020 4:51 AM
> > > To: Enhanced Machine Controller (EMC)
> > > Subject: Re: [Emc-users] SPAM: Re: freecad, latest, starter tut?
> > >
> > > Generating g-code with Freecad is a bit of an arduous process.
> Especially
> > > for the first time.  After you've made your 3d model, you have to
> convert
> > > that drawing into a part, then you have to create a Job amd set up 
> > > your tool library, then add the tools to the Job, then configure 
> > > the machine
> driver,
> > > then create all of the machining tool paths (using the Path 
> > > Workbench.) Then only after you've created your tool paths, can 
> > > you output g-code
> to a
> > > file.  (The only g-code I've made with Frecad was using version 
> > > 0.18.)
> > >
> > > Todd Zuercher
> > > P. Graham Dunn Inc.
> > > 630 Henry Street
> > > Dalton, Ohio 44618
> > > Phone:  (330)828-2105ext. 2031
> > >
> > > -Original Message-
> > > From: Gene Heskett 
> > > Sent: Sunday, September 20, 2020 11:09 AM
> > > To: emc-users@lists.sourceforge.net
> > > Subject: SPAM: Re: [Emc-users] freecad, latest, starter tut?
> > >
> > > [EXTERNAL EMAIL] Be sure links are safe.
> > >
> > > On Sunday 20 September 2020 10:04:48 Martin Dobbins wrote:
> > >
> > > > freecad has an export menu that claims to do gcode, but it does 
> > > > not create the code, nor does it report any error I understand 
> > > > when going thru the motions. freecad screenshot attached. A 
> > > > simple torus shape, 50mm in diameter, 35mm tall, with a 28mm center 
> > > > hole.
> > > >
> > > > Good morning Gene,
> > > >
> > > > I've looked through the midden heap of my drag knife folder and 
> > > > I
> have
> > > > been unable to locate a file with g code.  This bugged me 
> > > > because I
> > > > *know* I saw readable g code from that project, then i 
> > > > remembered how I had seen g-code (on screen) whic

Re: [Emc-users] freecad, latest, starter tut?

[andy pugh]

On Wed, 23 Sep 2020 at 05:45, TJoseph Powderly  wrote:
>
> Stop labelling messages as SPAM

It's easy enough to edit the subject before replying.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Martin Dobbins]

Can you select, copy, and paste the code you see on screen to a text file?

I don't know, I didn't try.

Martin



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Gregg Eshelman via Emc-users]

 How about HeeksCAD/CAM? https://sites.google.com/site/heekscad/
https://sites.google.com/site/heekscad/news/linuxversion
The only difference between the free and paid version is the free version puts 
a note at the start of the G-Code it outputs, which can easily be removed with 
a text editor.

On Sunday, September 20, 2020, 12:33:03 PM MDT, Bruce Layne 
 wrote:  
On 9/20/20 3:47 AM, Gene Heskett wrote:
> On Sunday 20 September 2020 01:50:10 Bruce Layne wrote:
>
>> Creating an STL from a FreeCAD part is about as simple as it can be.
>>
> How many times do I have to say it? Freecad has an export to linuxcnc 
> menu. It does not work.

You cropped the part of my reply that made it obvious that I was
replying to someone else's comment lamenting that it shouldn't be so
difficult to create an STL in FreeCAD.  I was merely demonstrating that
it isn't difficult.  I wasn't trying to tell you to create an STL to 3D
print your part.

I did try to generate G code for your part.  I drew your part by
subtracting one cylinder from another in a few seconds.  I then tried to
teach myself how to generate G code for LinuxCNC from FreeCAD.  I
thought I might be able to help you while learning a useful new tool. 
Nope.  The tutorial on the FreeCAD site was so out of date as to be
unusable.  I found a nine month old tutorial using FreeCAD 0.18 that I
thought might work with 0.19.

http://cadcamlessons.com/freecad-path-workbench-tutorial

Close, but no cigar.

The FreeCAD menus, icons and hot keys had changed but I mostly muddled
through that.  I was able to select the linuxcnc post processor and
create Default Tool 1 and set the following parameters:

horizontal feed speed
vertical feed speed
spindle speed
spindle direction
conventional milling

However, I was unable to set:

horizontal rapid speed
vertical rapid speed
tool diameter

The CAM process was clearly not ready for prime time.  It seemed buggy,
even by alpha code standards.  Some of the fields seemed to allow me to
enter a number but when I tried, the numbers were interpreted as hot
keys for the 3D view perspective.

I'll keep using FreeCAD for my 3D printers.  It's good at that.  I might
try CAM a year from now in FreeCAD, although I still prefer to write my
own G code by hand, occasionally using a G code generator for creating
pockets, bolt hole patterns, etc.



> the youtube screen is way too small to see what they are actually doing.

It's even worse for me as I'm inevitably trying to watch a FreeCAD
demo/tutorial on my cell phone, which is a frustratingly pointless exercise.  
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Gregg Eshelman via Emc-users]

Can you select, copy, and paste the code you see on screen to a text file? 

On Sunday, September 20, 2020, 8:07:24 AM MDT, Martin Dobbins 
 wrote: 
freecad has an export menu that claims to do gcode, but it does not
create the code, nor does it report any error I understand when going
thru the motions. freecad screenshot attached. A simple torus shape,
50mm in diameter, 35mm tall, with a 28mm center hole.

Good morning Gene,

I've looked through the midden heap of my drag knife folder and I have been 
unable to locate a file with g code.  This bugged me because I *know* I saw 
readable g code from that project, then i remembered how I had seen g-code (on 
screen) which is pretty much as described in this video:

https://www.youtube.com/watch?v=fWU621P0gZk

I know I expected to have human readable code at the end of this project (pity 
I didn't complete it) because I'm working on a desktop that is not connected to 
the CNC so I expected a text file at the end that I could edit and rename to a 
.ngc file to transfer to the CNC machine.

If you can wait, I'll have a go at replicating the torus you made and see if I 
can send the g code.  If that works I will (try) to tell you how I did it.  
Later today, I hope.

Martin  
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[grumpy--- via Emc-users]

On Sun, 20 Sep 2020, Bruce Layne wrote:


I'm not a professional draftsman.? I was initially intimidated by
FreeCAD, as many people naturally are.? I knew when I was glomming parts
together using geometric primitives that I wasn't doing *real* CAD, but
that inelegant method allowed me to produce simple usable parts.? Some
complex parts need to be drawn in 2D and lofted or rotated, and that's
what I do when I need a complex shape, but if I was drawing Gene's
simple part in FreeCAD it's much faster to create two cylinders and
subtract one from the other, and it would be much faster and easier for
Gene to get the part he wants that way instead of trying to talk him
through using Draft mode to draw 2D shapes (which requires selecting
working planes, etc.) and then switching to Part mode to extrude the
shape into 3D.

I totally agree that restricting ourselves to simple 3D shapes would
severely limit our capabilities, but for simple 3D shapes it's easier in
FreeCAD to stay in the 3D Part environment and simply create the
parametric part I need.? The notion of drawing 2D parts and then lofting
or rotating them as THE way to work seems to have its origins in the
days when AutoCAD was trying to embrace 3D CAD but was barking up the
wrong tree because they were adding that capability to their legacy 2D CAD.

I assume Fusion360 and Solidworks make it much easier to work in 2D and
3D.? It's not terribly difficult in FreeCAD, but I find it cumbersome to
switch gears.? If I want a rectangular plate with some holes or a disk
or tube, it's much easier to use the 3D primitives.? It's certainly much
easier to talk a newbie through the 3D process than try to convince them
to draw 2D parts and then switch to 3D to extrude them, which is similar
to telling then to use a 2D CAD program to draw their part and then
export that to a DXF and import that into a separate program to loft the
part and create the G code.

And it IS surprising how complex parts can be when constructed using 3D
primitives.? Most of us aren't doing a lot of 3D surface machining for
injection molds or art objects.? Most of us are cranking out simple
parts that are readily machinable using 2.5D methods.? Gene's part is on
the simple side but is a good example.? Designing parts from 3D
primitives is quite amenable to the types of parts that hobbyists are
usually machining.? I don't have a five axis machining center in my
basement shop, so I had no need for complex 3D CAD until I had a 3D
printer that was much less restricted in the part geometry it could
create.? In fact, for the simple parts I machine on the mill, router and
lathes, I prefer to write my own G code from scratch rather than using
CAD and CAM.


an example of some of the different methods in freecad are demonstrated in the 
link below
i have used the "Part Workbench" method to create many different threads
https://wiki.freecadweb.org/Thread_for_Screw_Tutorial


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Bruce Layne]

On 9/20/20 3:47 AM, Gene Heskett wrote:
> On Sunday 20 September 2020 01:50:10 Bruce Layne wrote:
>
>> Creating an STL from a FreeCAD part is about as simple as it can be.
>>
> How many times do I have to say it? Freecad has an export to linuxcnc 
> menu. It does not work.

You cropped the part of my reply that made it obvious that I was
replying to someone else's comment lamenting that it shouldn't be so
difficult to create an STL in FreeCAD.  I was merely demonstrating that
it isn't difficult.  I wasn't trying to tell you to create an STL to 3D
print your part.

I did try to generate G code for your part.  I drew your part by
subtracting one cylinder from another in a few seconds.  I then tried to
teach myself how to generate G code for LinuxCNC from FreeCAD.  I
thought I might be able to help you while learning a useful new tool. 
Nope.  The tutorial on the FreeCAD site was so out of date as to be
unusable.  I found a nine month old tutorial using FreeCAD 0.18 that I
thought might work with 0.19.

http://cadcamlessons.com/freecad-path-workbench-tutorial

Close, but no cigar.

The FreeCAD menus, icons and hot keys had changed but I mostly muddled
through that.  I was able to select the linuxcnc post processor and
create Default Tool 1 and set the following parameters:

horizontal feed speed
vertical feed speed
spindle speed
spindle direction
conventional milling

However, I was unable to set:

horizontal rapid speed
vertical rapid speed
tool diameter

The CAM process was clearly not ready for prime time.  It seemed buggy,
even by alpha code standards.  Some of the fields seemed to allow me to
enter a number but when I tried, the numbers were interpreted as hot
keys for the 3D view perspective.

I'll keep using FreeCAD for my 3D printers.  It's good at that.  I might
try CAM a year from now in FreeCAD, although I still prefer to write my
own G code by hand, occasionally using a G code generator for creating
pockets, bolt hole patterns, etc.



> the youtube screen is way too small to see what they are actually doing.

It's even worse for me as I'm inevitably trying to watch a FreeCAD
demo/tutorial on my cell phone, which is a frustratingly pointless exercise.





___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[N]

> ...
> I assume Fusion360 and Solidworks make it much easier to work in 2D and
> 3D.  It's not terribly difficult in FreeCAD, but I find it cumbersome to
> switch gears.  If I want a rectangular plate with some holes or a disk
> or tube, it's much easier to use the 3D primitives.  It's certainly much
> easier to talk a newbie through the 3D process than try to convince them
> to draw 2D parts and then switch to 3D to extrude them, which is similar
> to telling then to use a 2D CAD program to draw their part and then
> export that to a DXF and import that into a separate program to loft the
> part and create the G code.

Might be cases there starting from a 2D drawing is rather useful. One nice 
thing with the sketcher is dimensions could be added and it tell then drawing 
is fully constrained.

You need to start with a sketch to use the hole feature which is useful for 
holes and threads.


Nicklas Karlsson


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Bruce Layne]

I'm not a professional draftsman.  I was initially intimidated by
FreeCAD, as many people naturally are.  I knew when I was glomming parts
together using geometric primitives that I wasn't doing *real* CAD, but
that inelegant method allowed me to produce simple usable parts.  Some
complex parts need to be drawn in 2D and lofted or rotated, and that's
what I do when I need a complex shape, but if I was drawing Gene's
simple part in FreeCAD it's much faster to create two cylinders and
subtract one from the other, and it would be much faster and easier for
Gene to get the part he wants that way instead of trying to talk him
through using Draft mode to draw 2D shapes (which requires selecting
working planes, etc.) and then switching to Part mode to extrude the
shape into 3D.

I totally agree that restricting ourselves to simple 3D shapes would
severely limit our capabilities, but for simple 3D shapes it's easier in
FreeCAD to stay in the 3D Part environment and simply create the
parametric part I need.  The notion of drawing 2D parts and then lofting
or rotating them as THE way to work seems to have its origins in the
days when AutoCAD was trying to embrace 3D CAD but was barking up the
wrong tree because they were adding that capability to their legacy 2D CAD.

I assume Fusion360 and Solidworks make it much easier to work in 2D and
3D.  It's not terribly difficult in FreeCAD, but I find it cumbersome to
switch gears.  If I want a rectangular plate with some holes or a disk
or tube, it's much easier to use the 3D primitives.  It's certainly much
easier to talk a newbie through the 3D process than try to convince them
to draw 2D parts and then switch to 3D to extrude them, which is similar
to telling then to use a 2D CAD program to draw their part and then
export that to a DXF and import that into a separate program to loft the
part and create the G code.

And it IS surprising how complex parts can be when constructed using 3D
primitives.  Most of us aren't doing a lot of 3D surface machining for
injection molds or art objects.  Most of us are cranking out simple
parts that are readily machinable using 2.5D methods.  Gene's part is on
the simple side but is a good example.  Designing parts from 3D
primitives is quite amenable to the types of parts that hobbyists are
usually machining.  I don't have a five axis machining center in my
basement shop, so I had no need for complex 3D CAD until I had a 3D
printer that was much less restricted in the part geometry it could
create.  In fact, for the simple parts I machine on the mill, router and
lathes, I prefer to write my own G code from scratch rather than using
CAD and CAM.





On 9/20/20 6:38 AM, andy pugh wrote:
> On Sun, 20 Sep 2020 at 06:52, Bruce Layne  
> wrote:
>
>>  It's amazing how much can be
>> accomplished by using geometric primitives (cube, cone, sphere,
>> cylinder, torus) and using Boolean operations to add or subtract these
>> components, then using chamfer or fillet on the edges.
> I would suggest that this probably isn't the best way to work.
>
> It is typically rather more flexible to start with a sketch then
> extrude it (for milling) or revolve it (for turning).
>
> The vast majority of lathe parts can be designed from a single
> dimensioned sketch revolved about an axis.
>


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Martin Dobbins]

In the meantime I've found that freecad treated my diameters as radii, so
the posted image is too big by 2x for xy.  Its a 50mm diameter pipe,
35mm long, with a 28mm diameter bore.  Makes sense, but big dummy at
work. :-)

That's a lathe job surely?  Why are you trying to mill it?

Hope you have better luck finding a more reliable vendor for your motor.

Martin



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Gene Heskett]

On Sunday 20 September 2020 10:04:48 Martin Dobbins wrote:

> freecad has an export menu that claims to do gcode, but it does not
> create the code, nor does it report any error I understand when going
> thru the motions. freecad screenshot attached. A simple torus shape,
> 50mm in diameter, 35mm tall, with a 28mm center hole.
>
> Good morning Gene,
>
> I've looked through the midden heap of my drag knife folder and I have
> been unable to locate a file with g code.  This bugged me because I
> *know* I saw readable g code from that project, then i remembered how
> I had seen g-code (on screen) which is pretty much as described in
> this video:
>
> https://www.youtube.com/watch?v=fWU621P0gZk
>
> I know I expected to have human readable code at the end of this
> project (pity I didn't complete it) because I'm working on a desktop
> that is not connected to the CNC so I expected a text file at the end
> that I could edit and rename to a .ngc file to transfer to the CNC
> machine.
>
> If you can wait, I'll have a go at replicating the torus you made and
> see if I can send the g code.  If that works I will (try) to tell you
> how I did it.  Later today, I hope.
>
> Martin

Not that big a hurry Martin, I don't have the motor in hand yet that I 
plan on using. I have found it from other vendors so all is not lost. 
This vendor I now recall burnt me several hundred dollars when I bought 
a 6040 mill for my Christmas present almost 2 years ago. I had to ditch 
the electronics and replace that whole box and its contents. Around $400 
of an $1200 purchase. Runs nicely now exceptfor an actual speed tally on 
the water cooled spindle which has no encoder, so its displaying the 
commanded speed to the vfd. Ought to be an echo from the vfd, but I 
don't know how to acquire it for linuxcnc.  Cheap clone vfd.

In the meantime I've found that freecad treated my diameters as radii, so 
the posted image is too big by 2x for xy.  Its a 50mm diameter pipe, 
35mm long, with a 28mm diameter bore.  Makes sense, but big dummy at 
work. :-)

Thank you Martin.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Martin Dobbins]

freecad has an export menu that claims to do gcode, but it does not
create the code, nor does it report any error I understand when going
thru the motions. freecad screenshot attached. A simple torus shape,
50mm in diameter, 35mm tall, with a 28mm center hole.

Good morning Gene,

I've looked through the midden heap of my drag knife folder and I have been 
unable to locate a file with g code.  This bugged me because I *know* I saw 
readable g code from that project, then i remembered how I had seen g-code (on 
screen) which is pretty much as described in this video:

https://www.youtube.com/watch?v=fWU621P0gZk

I know I expected to have human readable code at the end of this project (pity 
I didn't complete it) because I'm working on a desktop that is not connected to 
the CNC so I expected a text file at the end that I could edit and rename to a 
.ngc file to transfer to the CNC machine.

If you can wait, I'll have a go at replicating the torus you made and see if I 
can send the g code.  If that works I will (try) to tell you how I did it.  
Later today, I hope.

Martin

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Gene Heskett]

On Sunday 20 September 2020 05:36:36 Lester Caine wrote:

> On 20/09/2020 08:34, Gene Heskett wrote:
> > BUT when I fill in that blank, github
> > says that address exists
>
> Have you tried simply asking it to reset your password? It will send
> it to the email address you are trying to use.
>
> When I first started playing with the 3D printer I registered with
> various sites providing models and promptly forgot that I had. The
> problem *I* find with github is that it is relied on too much by many
> projects and quite often I find myself there and automatically logged
> in as I have got the password saved :(

Story of my life too, Lester. And I tend to use and reuse pw phrases 
based on unusual names I've encountered in my 85 years, variations on a 
theme so to speak, but which variation did I use on this site? I can't 
remember that with a 38 in my ear.  Then the next site screws you up 
because they won't take a pw that long. A pox on sites still stuck on a 
6 character pw. Or even 20 chars, that was obsolete by 1995.

Thanks Lester. 

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Gene Heskett]

On Sunday 20 September 2020 05:31:13 Lester Caine wrote:

> On 20/09/2020 08:47, Gene Heskett wrote:
> >> Type in the filename, select the directory where you want it
> >> (defaults to the current location), and select STL from the list of
> >> many export options.
> >
> > And that part works fine. BUT I NEED A SOLID METAL PART! >
>
> Going back 15 or or years, creating gcode to produce a solid metal
> part needed substantial help from the machinist. And not much has
> changed today. A few years back I was given a very nice STL model of a
> train wheel with the request to cut one. Bottom line ... totally
> pointless exercise. What I needed was the original objects that were
> used to create the model, and the ability to select both faces and
> construction lines which can THEN be used to build a set of gcode. At
> that time I was using tools like vcarve and cut3d and feeding in 2D
> drawings which provided the various profiles to be cut. Now I have
> FreeCAD in the toolkit, essentially I'm following the same process but
> in the one package of tools. Certainly the older packages are much
> better at some elements of the process such as say 'engraving text
> around the curve of the wheel', but FreeCAD has a growing library of
> tools that take elements of the object and produce the relevant gcode.
>
> At some point in the future we may well be able to tell a machining
> suite 'I have an XYZ mill and here is the part I need to machine'. It
> spews out a list of tools to use, cutting feed rates, and either
> individual gcode files for each tool change, although if you have one
> of those million pound machining centres with an unlimited tool
> changer then it could be a single file. At the moment we still need to
> provide the intelligence to decide - appropriate to our available
> tooling - just what order of machining is appropriate, and FreeCAD
> today does allow me to create parts from a scrap of paper with a
> sketch on to a finished part.
>
> Personally I find the drafting side of FreeCAD cumbersome coming from
> some 30 years of Autocad style drawing and THAT side needs some more
> intuitive developments especially when taking existing drawings as a
> starting point. However as a framework to build on it is doing a good
> job and with more people working on niche areas it can only improve?
> In much the same way that LinuxCNC has ...

That would seem to still be true Lester. I was somewhat surprised it 
didn't want more info than just linuxcnc flavor.  To be fair, I may as 
well have a paper napkin sketch at this stage, but I was a bit put off 
when I can see the first stage of what I need on-screen, as shown in the 
screen snap I posted, and it couldn't even put that on paper. Because of 
the length of shaft sticking out of the BS-1, I made it 35mm long, and 
that alone takes it out of the one setup category due to the practical 
length of tool stickout needed. So the first step is to bore it thru so 
theres a locator hole to center it with when its turned over to do the 
other side. I understand that, but the code generator more than likely 
does not. It also would be much easier to make if the motor was already 
driving the bs-1, classic chicken v egg problem. :-)  At this stage, I 
don't even know how to add the dimensions so they would be output in an 
engineering drawing format as that would serve as a handy source of info 
while writing the code by hand. And it looks to me like I'll need to src 
a boreing head, something I don't own yet, or do it on the Sheldon, 
which may be the fastest to a usable part.

I fine tuned my ebay search a bit and found other vendors besides that 
jerk, selling the same thing, so if he doesn't ship and I have to do the 
chargeback, all is not lost as I should be able get it from other 
on-shore vendors.  The other wish is to locate and acquire some 2" or 
2.5" alu rod in 7078-t6. Hell on tooling but sure makes nice stuff. It 
also holds threads well, where 6061 is gone by the time you've tightened 
the bolt 10 times.  Even helicoils won't hold in that crap.

A railroad wheel? I'll not live long enough to own a machine that big.

Thank you Lester.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[andy pugh]

On Sun, 20 Sep 2020 at 06:52, Bruce Layne  wrote:

>  It's amazing how much can be
> accomplished by using geometric primitives (cube, cone, sphere,
> cylinder, torus) and using Boolean operations to add or subtract these
> components, then using chamfer or fillet on the edges.

I would suggest that this probably isn't the best way to work.

It is typically rather more flexible to start with a sketch then
extrude it (for milling) or revolve it (for turning).

The vast majority of lathe parts can be designed from a single
dimensioned sketch revolved about an axis.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Lester Caine]

On 20/09/2020 08:34, Gene Heskett wrote:

BUT when I fill in that blank, github
says that address exists


Have you tried simply asking it to reset your password? It will send it 
to the email address you are trying to use.


When I first started playing with the 3D printer I registered with 
various sites providing models and promptly forgot that I had. The 
problem *I* find with github is that it is relied on too much by many 
projects and quite often I find myself there and automatically logged in 
as I have got the password saved :(


--
Lester Caine - G8HFL
-
Contact - https://lsces.uk/wiki/Contact
L.S.Caine Electronic Services - https://lsces.uk
Model Engineers Digital Workshop - https://medw.uk
Rainbow Digital Media - https://rainbowdigitalmedia.uk


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Lester Caine]

On 20/09/2020 08:47, Gene Heskett wrote:

Type in the filename, select the directory where you want it (defaults
to the current location), and select STL from the list of many export
options.

And that part works fine. BUT I NEED A SOLID METAL PART! >


Going back 15 or or years, creating gcode to produce a solid metal part 
needed substantial help from the machinist. And not much has changed 
today. A few years back I was given a very nice STL model of a train 
wheel with the request to cut one. Bottom line ... totally pointless 
exercise. What I needed was the original objects that were used to 
create the model, and the ability to select both faces and construction 
lines which can THEN be used to build a set of gcode. At that time I was 
using tools like vcarve and cut3d and feeding in 2D drawings which 
provided the various profiles to be cut. Now I have FreeCAD in the 
toolkit, essentially I'm following the same process but in the one 
package of tools. Certainly the older packages are much better at some 
elements of the process such as say 'engraving text around the curve of 
the wheel', but FreeCAD has a growing library of tools that take 
elements of the object and produce the relevant gcode.


At some point in the future we may well be able to tell a machining 
suite 'I have an XYZ mill and here is the part I need to machine'. It 
spews out a list of tools to use, cutting feed rates, and either 
individual gcode files for each tool change, although if you have one of 
those million pound machining centres with an unlimited tool changer 
then it could be a single file. At the moment we still need to provide 
the intelligence to decide - appropriate to our available tooling - just 
what order of machining is appropriate, and FreeCAD today does allow me 
to create parts from a scrap of paper with a sketch on to a finished part.


Personally I find the drafting side of FreeCAD cumbersome coming from 
some 30 years of Autocad style drawing and THAT side needs some more 
intuitive developments especially when taking existing drawings as a 
starting point. However as a framework to build on it is doing a good 
job and with more people working on niche areas it can only improve? In 
much the same way that LinuxCNC has ...


--
Lester Caine - G8HFL
-
Contact - https://lsces.uk/wiki/Contact
L.S.Caine Electronic Services - https://lsces.uk
Model Engineers Digital Workshop - https://medw.uk
Rainbow Digital Media - https://rainbowdigitalmedia.uk


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Gene Heskett]

On Sunday 20 September 2020 01:50:10 Bruce Layne wrote:

> Creating an STL from a FreeCAD part is about as simple as it can be.
>
How many times do I have to say it? Freecad has an export to linuxcnc 
menu. It does not work.

> Highlight the part by clicking on it in the left hand Application
> window. Click File-Export
> Type in the filename, select the directory where you want it (defaults
> to the current location), and select STL from the list of many export
> options.
And that part works fine. BUT I NEED A SOLID METAL PART! >
> There are a few aspects of FreeCAD that still aren't intuitive. 
> Engraved text is one.  It's not too difficult, but it's not very
> intuitive.  Like GIMP, now that I've used FreeCAD for some time and
> have figured out its quirks, I'm fairly productive.  Not productive in
> the manner of a CAD draftsman, but pretty good for a maker who does
> CAD an hour or two a week on average.  It's amazing how much can be
> accomplished by using geometric primitives (cube, cone, sphere,
> cylinder, torus) and using Boolean operations to add or subtract these
> components, then using chamfer or fillet on the edges.
>
> The YouTube FreeCAD tutorials are often out of date and the user
> interface improvements and new features make those out of date and
> useless (and frustrating), although the current 0.19 version seems to
> be stabilizing the basic features.  Another issue that confuses people
> is the different navigation modes that determine the mouse functions.
> Allowing the user to switch to the mouse navigation that they already
> learned in a previous CAD program makes FreeCAD flexible, but unless
> you use the same navigation mode as the person making the tutorial,
> you'll be lost.  Finally, way too many alleged tutorials on YouTube
> are actually demos.  I can see that someone is able to do something,
> but the quick clicky demo without any narration to tell me what
> they're doing is closer to a magic trick than a tutorial.  Slow down,
> and tell us what you're doing and why.

that too. the youtube screen is way too small to see what they are 
actually doing.

> The best way to learn FreeCAD would be to have someone who knows it
> walk you through a design.  Figuring it out on your own is probably 1%
> as efficient so there's a high frustration factor.  The lack of
> training materials is seriously holding back the growth of FreeCAD.

Nails it solidly right there.

> On 9/20/20 1:25 AM, Gregg Eshelman via Emc-users wrote:
> > Ugh. Why can't it just do all that automatically to whatever is the
> > currently selected part of what's on the screen, or all of it if all
> > of what's on screen is one object?Save > Export > .STL and the
> > software does the rest behind the scenes.
> >
> > On Saturday, September 19, 2020, 12:03:07 PM MDT, grumpy--- via
> > Emc-users  wrote: i have used
> > freecad enough to be a middle'n noib
> > this is how i do it
> > save my .fcstd so i can come back and re-edit
> > in the top row select "Mesh design" in the drop down
> > in the left top panel select your design, "Cut"
> > in the top menu click "Meshes"
> > select "Create mesh from shape"
> > select "Standard"
> > select "OK"
> > in left top panel click on "Cut (Meshed)"
> > right click and select "Export mesh"
> > this creates a .stl
> > then use cura to slice

What for? The plastic has .1% of the strength needed. And takes at least 
31 hours and nearly 50 meters of filament would be wasted.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Gene Heskett]

On Sunday 20 September 2020 01:25:34 Gregg Eshelman via Emc-users wrote:

> Ugh. Why can't it just do all that automatically to whatever is the
> currently selected part of what's on the screen, or all of it if all
> of what's on screen is one object?Save > Export > .STL and the
> software does the rest behind the scenes.
>
> On Saturday, September 19, 2020, 12:03:07 PM MDT, grumpy--- via
> Emc-users  wrote: i have used freecad
> enough to be a middle'n noib
> this is how i do it
> save my .fcstd so i can come back and re-edit
> in the top row select "Mesh design" in the drop down
> in the left top panel select your design, "Cut"
> in the top menu click "Meshes"
> select "Create mesh from shape"
> select "Standard"
> select "OK"
> in left top panel click on "Cut (Meshed)"
> right click and select "Export mesh"
> this creates a .stl
> then use cura to slice

as I have stated several times now Gregg, an .stl and cura is not the end 
target, it has zero chance of making me a serviceable part as this will 
be attached to the side of a 90Kg BS-1 clone. So I want gcode to drive a 
cnc'd G0704 working on about a pound of solid alu. Or, since I've a 
mister on the 6040, possibly that mill since it can turn 24000 revs and 
probably do a better job with the mister keeping the tool free of gummy 
alu.

freecad has an export menu that claims to do gcode, but it does not 
create the code, nor does it report any error I understand when going 
thru the motions. freecad screenshot attached. A simple torus shape, 
50mm in diameter, 35mm tall, with a 28mm center hole.  The terminal 
freecad is running on says:

Path workbench activated
PathScripts.linuxcnc_post gcode postprocessor loaded.
the object Cut is not a path. Please select only path and Compounds.
the object Cut is not a path. Please select only path and Compounds.
Traceback (most recent call last):
  File "", line 4, in 
: The given file is not a path
Stack Trace: Traceback (most recent call last):
  File "", line 4, in 

Which might as well be swahili to me. To me the "path" is to the location 
where its to write the code file to, which does exist and has other 
content.  But to freecad, apparently "path" is something else entirely.

As for using github to register for the freecad irc channel, I apparently 
am not doing that right either. their registration sends me to github, 
but github wants my email address BUT when I fill in that blank, github 
says that address exists and refuses to proceed as I use github to pull 
LinuxCNC updates to master, and build it on my rpi4 to drive the 11x54 
Sheldon.  So github definitely knows who I am, so how does that supposed 
to be done? IDK.  All I understand is that I am blocked from asking for 
freecad help on their IRC channel. They also have two other ident 
choices, but I don't feed the social media vacuums what s/b private 
info. My name is not Trump so I don't do twitter and I don't trust 
Zuckerburg, full stop there too.

Thanks Gregg.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Bruce Layne]

Creating an STL from a FreeCAD part is about as simple as it can be.

Highlight the part by clicking on it in the left hand Application window.
Click File-Export
Type in the filename, select the directory where you want it (defaults
to the current location), and select STL from the list of many export
options.

There are a few aspects of FreeCAD that still aren't intuitive. 
Engraved text is one.  It's not too difficult, but it's not very
intuitive.  Like GIMP, now that I've used FreeCAD for some time and have
figured out its quirks, I'm fairly productive.  Not productive in the
manner of a CAD draftsman, but pretty good for a maker who does CAD an
hour or two a week on average.  It's amazing how much can be
accomplished by using geometric primitives (cube, cone, sphere,
cylinder, torus) and using Boolean operations to add or subtract these
components, then using chamfer or fillet on the edges.

The YouTube FreeCAD tutorials are often out of date and the user
interface improvements and new features make those out of date and
useless (and frustrating), although the current 0.19 version seems to be
stabilizing the basic features.  Another issue that confuses people is
the different navigation modes that determine the mouse functions. 
Allowing the user to switch to the mouse navigation that they already
learned in a previous CAD program makes FreeCAD flexible, but unless you
use the same navigation mode as the person making the tutorial, you'll
be lost.  Finally, way too many alleged tutorials on YouTube are
actually demos.  I can see that someone is able to do something, but the
quick clicky demo without any narration to tell me what they're doing is
closer to a magic trick than a tutorial.  Slow down, and tell us what
you're doing and why.

The best way to learn FreeCAD would be to have someone who knows it walk
you through a design.  Figuring it out on your own is probably 1% as
efficient so there's a high frustration factor.  The lack of training
materials is seriously holding back the growth of FreeCAD.





On 9/20/20 1:25 AM, Gregg Eshelman via Emc-users wrote:
> Ugh. Why can't it just do all that automatically to whatever is the currently 
> selected part of what's on the screen, or all of it if all of what's on 
> screen is one object?Save > Export > .STL
> and the software does the rest behind the scenes.
>
> On Saturday, September 19, 2020, 12:03:07 PM MDT, grumpy--- via Emc-users 
>  wrote:  
> i have used freecad enough to be a middle'n noib
> this is how i do it
> save my .fcstd so i can come back and re-edit
> in the top row select "Mesh design" in the drop down
> in the left top panel select your design, "Cut"
> in the top menu click "Meshes"
> select "Create mesh from shape"
> select "Standard"
> select "OK"
> in left top panel click on "Cut (Meshed)"
> right click and select "Export mesh"
> this creates a .stl
> then use cura to slice  
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Gregg Eshelman via Emc-users]

Ugh. Why can't it just do all that automatically to whatever is the currently 
selected part of what's on the screen, or all of it if all of what's on screen 
is one object?Save > Export > .STL
and the software does the rest behind the scenes.

On Saturday, September 19, 2020, 12:03:07 PM MDT, grumpy--- via Emc-users 
 wrote:  
i have used freecad enough to be a middle'n noib
this is how i do it
save my .fcstd so i can come back and re-edit
in the top row select "Mesh design" in the drop down
in the left top panel select your design, "Cut"
in the top menu click "Meshes"
select "Create mesh from shape"
select "Standard"
select "OK"
in left top panel click on "Cut (Meshed)"
right click and select "Export mesh"
this creates a .stl
then use cura to slice  
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Martin Dobbins]

but the cut object is the only selection that highlights it all. Is there
a weld it all together step I've missed?

Hi Gene,

I've only played with the path workbench a little when I was trying to work out 
g-code for a drag knife, a project I dumped because the hardware I set up 
wasn't going to work.

I worked out a lot from videos posted by a guy that was (at least) partly 
responsible for the path workbench.  I can remember that if you don't get it 
right from the outset, it's a pain to go back and "stitching" everything 
together correctly at the beginning is a big help.  There are eight videos in 
the series and this is #0 The videos help a lot with navigation around menus 
etc.

https://www.youtube.com/watch?v=jARnmuWm7n4

Tomorrow I'll look back through my experiments and see if I got human readable 
g code out of it.

Regards,

Martin




___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Gene Heskett]

On Saturday 19 September 2020 18:37:43 Martin Dobbins wrote:

> I see all that, but if I select gcolde to feed my milling machine
> running the master version of LinuxCNC, it brings up a list of
> post-proc's, one of which is Linuxcnc.  And if sent as a print job to
> my huge brother mfc-j6920-dw, it spits out a blank sheet of glossy
> photo paper.  So I'm locked out of saving in a file format thats
> readable by human eyes.
>
> Hi Gene,
>
> I misunderstood 
>
> I don't know what steps you have taken so far to get the g code from
> Freecad.  Most CAD systems do not directly produce g code, a CAM
> system is required to do that, in Freecad this is called the path
> workbench.  Is this where you are getting the gcode from?
>
> https://www.youtube.com/watch?v=MWFC17MIfOE
>
> With the objective of massaging it to work better for you?  Or are you
> trying to produce a dimensioned drawing to aid you in writing gcode
> from scratch?
>
> https://www.youtube.com/watch?v=EJ2685bk3_E
>
>i Sorry if I'm still not getting it.
Nether am I, sadly. I do that if I select the linuxcnc post-proc, the 
error message in the konsole behind freecad says it did find it.

Path workbench activated
PathScripts.linuxcnc_post gcode postprocessor loaded.

but then:
the object Cut is not a path. Please select only path and Compounds.
the object Cut is not a path. Please select only path and Compounds.
Traceback (most recent call last):
  File "", line 4, in 
: The given file is not a path
Stack Trace: Traceback (most recent call last):
  File "", line 4, in 

but the cut object is the only selection that highlights it all. Is there 
a weld it all together step I've missed?

> Martin
>
Thank you Martin.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Martin Dobbins]

I see all that, but if I select gcolde to feed my milling machine running
the master version of LinuxCNC, it brings up a list of post-proc's, one
of which is Linuxcnc.  And if sent as a print job to my huge brother
mfc-j6920-dw, it spits out a blank sheet of glossy photo paper.  So I'm
locked out of saving in a file format thats readable by human eyes.

Hi Gene,

I misunderstood 

I don't know what steps you have taken so far to get the g code from Freecad.  
Most CAD systems do not directly produce g code, a CAM system is required to do 
that, in Freecad this is called the path workbench.  Is this where you are 
getting the gcode from?

https://www.youtube.com/watch?v=MWFC17MIfOE

With the objective of massaging it to work better for you?  Or are you trying 
to produce a dimensioned drawing to aid you in writing gcode from scratch?

https://www.youtube.com/watch?v=EJ2685bk3_E

Sorry if I'm still not getting it.

Martin






___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Gene Heskett]

On Saturday 19 September 2020 17:02:31 Chris Albertson wrote:

> I don't understand this. Wouldn't you look at the file on the monitor
> before trying to print it?
>
> Every project tracks problems differently.   Many will use github's
> problem tracker.It appears this is the case with FreeCAD.I see
> there are currently 41 open issues and over 3,100 closed ones.   The
> most resent issue is only a few hours old.  So the issue tracker is
> very active with several per day.  Why not open a "g-code file is
> empty" issue.

Empty? It isn't even created. Error msg in the terminal says the path it 
invalid, but it is not. The directory exists and has content. Does 
anyone know if I'm missing a pluggin or something?

So then I go to print it, and it sends an empty page as a pdf, I think. 
The printer sounded normal, while quickly spitting out a blank page, 
from the tray I requested. 3 times now.

However, it does create the .stl, and its being displayed in cura right 
now. I don't know if its solid but its just short of 50 meters of fiber, 
and 30h:33m to render. I'm not going to waste the string. This needs to 
be steel, or worst case, alu.  Even PETG won't last here as it will be 
handled rougher due to the weight of the BS-1 clone.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Chris Albertson]

I don't understand this. Wouldn't you look at the file on the monitor
before trying to print it?

Every project tracks problems differently.   Many will use github's problem
tracker.It appears this is the case with FreeCAD.I see there are
currently 41 open issues and over 3,100 closed ones.   The most resent
issue is only a few hours old.  So the issue tracker is very active with
several per day.  Why not open a "g-code file is empty" issue.



On Sat, Sep 19, 2020 at 1:32 PM Gene Heskett  wrote:

> On Saturday 19 September 2020 15:31:58 Martin Dobbins wrote:
>
>  if sent as a print job to my huge brother
> mfc-j6920-dw, it spits out a blank sheet of glossy photo paper.  So I'm
> locked out of saving in a file format thats readable by human eyes.
>
> I goto the IRC channel, I can see some light traffic, but I can't post
> without registering which when clicked on brings up a menu, listing
> github as one src of ID verification. I am known to github for years as
> I build LinuxCNC from there for my rpi4 powered 11x54 Sheldon lathe
> converted to cnc. guthub wants my email address, which when entered
> returns that the address is taken and refuses to proceed. So I am locked
> out of even reporting the problem to anyone at freecad.  Somebody's
> miss-guided paranoia is screwing me over and I am not a happy camper.
> This sort of stuff is much more likely to be found on the ground behind
> the male bovine specie, which being raised in the middle of Iowa farm
> country, I am much more familiar with shoveling than I wish I was.
>
> But I've no damned way to make my problems known to anyone except a
> nearly un-related mailing list for linuxcnc.
>
> > This kind of shows what I'm talking about:
>
> I don't need an .stl to feed cura that will be destroyed by the first 10
> lb push against it, which considering this BS-1 clone weighs almost 90
> Kg, will be about the first time I wrap a lifting strap around it from a
> 400 lb electric hoist to pick it up and set it on my mills table.
>
> > https://www.youtube.com/watch?v=Yk5HIDn-Yao
> >
> > Martin
> >
> I appreciate the help Martin, thanks a bunch, but I need help with my
> stated problem. I can and have written 75+% of the gcode in my nc_files
> directories, and it would be helpfull to have a drawing printout when
> doing this as probably 2 pieces, a mount, and a shaft coupling. Provided
> the motor shows up. It has until sundown next Wednesday to be in my hand
> else I'll initiate a card charge back. It turns out that the vendor is
> the same one that screwed me over for all fresh electronics about 2
> years ago when I bought myself a 6040 mill for a Christmas present, and
> I was out almost $500 making it run right. He messed around pretending
> he didn't speak English or some lame excuse, he had several, but the
> word warranty isn't in his vocabulary.
>
> Cheers, Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> If we desire respect for the law, we must first make the law respectable.
>  - Louis D. Brandeis
> Genes Web page 
>
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>


-- 

Chris Albertson
Redondo Beach, California

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Gene Heskett]

On Saturday 19 September 2020 15:31:58 Martin Dobbins wrote:

> And I just found that it generates NO errors for either a gcode export
> that generates no file, and issues a blank page when you print it. The
> only file type it will generate is *.FCstd's.  To quote Jackie G.,
> What a revoltin development that is...
>
> Hi Gene,
>
> I'm using the AP image too
>
> If I select  ( save (+ s)
> it invites me to save a .FCStd file.
>
> If I select  Export (Ctrl+E) it offers me a list of around 35
> format choices, one of which is .stl which is what you need to feed to
> Cura.
>
I see all that, but if I select gcolde to feed my milling machine running 
the master version of LinuxCNC, it brings up a list of post-proc's, one 
of which is Linuxcnc.  And if sent as a print job to my huge brother 
mfc-j6920-dw, it spits out a blank sheet of glossy photo paper.  So I'm 
locked out of saving in a file format thats readable by human eyes.

I goto the IRC channel, I can see some light traffic, but I can't post 
without registering which when clicked on brings up a menu, listing 
github as one src of ID verification. I am known to github for years as 
I build LinuxCNC from there for my rpi4 powered 11x54 Sheldon lathe 
converted to cnc. guthub wants my email address, which when entered 
returns that the address is taken and refuses to proceed. So I am locked 
out of even reporting the problem to anyone at freecad.  Somebody's 
miss-guided paranoia is screwing me over and I am not a happy camper.  
This sort of stuff is much more likely to be found on the ground behind 
the male bovine specie, which being raised in the middle of Iowa farm 
country, I am much more familiar with shoveling than I wish I was.

But I've no damned way to make my problems known to anyone except a 
nearly un-related mailing list for linuxcnc.

> This kind of shows what I'm talking about:

I don't need an .stl to feed cura that will be destroyed by the first 10 
lb push against it, which considering this BS-1 clone weighs almost 90 
Kg, will be about the first time I wrap a lifting strap around it from a 
400 lb electric hoist to pick it up and set it on my mills table.

> https://www.youtube.com/watch?v=Yk5HIDn-Yao
>
> Martin
>
I appreciate the help Martin, thanks a bunch, but I need help with my 
stated problem. I can and have written 75+% of the gcode in my nc_files 
directories, and it would be helpfull to have a drawing printout when 
doing this as probably 2 pieces, a mount, and a shaft coupling. Provided 
the motor shows up. It has until sundown next Wednesday to be in my hand 
else I'll initiate a card charge back. It turns out that the vendor is 
the same one that screwed me over for all fresh electronics about 2 
years ago when I bought myself a 6040 mill for a Christmas present, and 
I was out almost $500 making it run right. He messed around pretending 
he didn't speak English or some lame excuse, he had several, but the 
word warranty isn't in his vocabulary.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Martin Dobbins]

And I just found that it generates NO errors for either a gcode export
that generates no file, and issues a blank page when you print it. The
only file type it will generate is *.FCstd's.  To quote Jackie G., What
a revoltin development that is...

Hi Gene,

I'm using the AP image too

If I select  ( save (+ s) it 
invites me to save a .FCStd file.

If I select  Export (Ctrl+E) it offers me a list of around 35 format 
choices, one of which is .stl which is what you need to feed to Cura.

This kind of shows what I'm talking about:

https://www.youtube.com/watch?v=Yk5HIDn-Yao

Martin


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Gene Heskett]

On Saturday 19 September 2020 12:43:29 Chris Albertson wrote:

> You will not find a tutorial that will walk you through making the
> part you want.   But you will find one that starts out showing you how
> to make a 2D sketch And another that shows how to define dimension
> that are functions of other dimensions and another that talks about
> making "extrusions"
>
> Actually the process is the same if you were to use FreeCAD,
> Solidworks, or Fusion.  The location of the menu picks change and the
> lines use different color codes.But you really do have to start
> from zero and follow along or you miss the fundamentals.
> The part you want is very "geometric" so it will be easy to model,
> unlike say if you wanted to make a pair of scissors.   So only the
> first half dozen video is needed.
>
> What you will find is that making the part in CAD is like making it in
> the shop.  You start with custom extrusion then remove metal by
> drilling and cutting, then round off the edges.Many people come
> into 3D CAD thinking they are going to make a drawing of the part. 
> No, you make a model of the part.   Once you do 5 or 8 of the
> graduated example exercises it will make sense.  But don't skip
> ahead.
>
> I'm actually watching a Solidworks online class now.

And I just found that it generates NO errors for either a gcode export 
that generates no file, and issues a blank page when you print it. The 
only file type it will generate is *.FCstd's.  To quote Jackie G., What 
a revoltin development that is...

Freecad-irc won't let me talk unless registered but I can login thru 
github. But when I put my email addy into the github screen it reply's 
that the address is already in use so I'm locked out. So I quit 
konversation. No real traffic there anyway.

Gr.

> On Sat, Sep 19, 2020 at 7:43 AM Gene Heskett  
wrote:
> > Greetings all;
> >
> > I am determined to create the adapter to bolt or clamp to the worm
> > bearing boss stick out of this BS-1 in hope that I will eventually
> > get that encoded motor I ordered.  So I went out and took some
> > measurements.
> >
> > The diameter of where it will clamp to is 28mm.
> > The diameter of the worm shaft sticking out of that is 19mm.
> > And this 19mm shaft is double flatted, 10mm across the flats.
> >
> > Now, where do I find a freecad tut that will allow me to create a
> > ring that will clamp or grub screw to the 28mm piece, and flare out
> > to about 50mm diameter to mount this worm drive and motor when it
> > arrives and I can take some measurements? I have managed to create a
> > starter cylinder but haven't found where to set its length or or
> > diameter. Rank, brand new bee here IOW.  And its solid rod, not a
> > ring, so is probably a throw away at this point.
> >
> > The youtube videos are confusing because they are outdated. These 2
> > seems to redefine the phrase "moveing target".
> >
> > Since I've installed the AppImages of both freecad and cura, 2 weeks
> > ago, both have been updated several times, and I have added
> > shortname links to the AppImages, in general making them no-brainers
> > to run. But I do have to fix the ln's when they update.
> >
> > Thanks for any guidance.
> >
> > Cheers, Gene Heskett
> > --
> > "There are four boxes to be used in defense of liberty:
> >  soap, ballot, jury, and ammo. Please use in that order."
> > -Ed Howdershelt (Author)
> > If we desire respect for the law, we must first make the law
> > respectable. - Louis D. Brandeis
> > Genes Web page 
> >
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users


Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[grumpy--- via Emc-users]

On Sat, 19 Sep 2020, Gene Heskett wrote:


On Saturday 19 September 2020 12:06:30 grumpy--- via Emc-users wrote:


On Sat, 19 Sep 2020, Gene Heskett wrote:

Greetings all;

I am determined to create the adapter to bolt or clamp to the worm
bearing boss stick out of this BS-1 in hope that I will eventually
get that encoded motor I ordered.  So I went out and took some
measurements.

The diameter of where it will clamp to is 28mm.
The diameter of the worm shaft sticking out of that is 19mm.
And this 19mm shaft is double flatted, 10mm across the flats.

Now, where do I find a freecad tut that will allow me to create a
ring that will clamp or grub screw to the 28mm piece, and flare out
to about 50mm diameter to mount this worm drive and motor when it
arrives and I can take some measurements? I have managed to create a
starter cylinder but haven't found where to set its length or or
diameter. Rank, brand new bee here IOW.  And its solid rod, not a
ring, so is probably a throw away at this point.

The youtube videos are confusing because they are outdated. These 2
seems to redefine the phrase "moveing target".

Since I've installed the AppImages of both freecad and cura, 2 weeks
ago, both have been updated several times, and I have added
shortname links to the AppImages, in general making them no-brainers
to run. But I do have to fix the ln's when they update.


not sure if this'll help or not
in the top row there is a drop down, select "part"
in the second row click on the cylinder
in the left top panel select the word "cylinder"
in the left lower panel adjust the properties
in the second row click on the cylinder again
adjust the diameter of the second cylinder to be smaller than the
first cylinder in the left top panel select the word "cylinder"
in the left top panel hold the ctrl key and select the word
"cylinder001" in the third row of the icons click on the third one,
tool tip "Make a cut of two shapes" now you have a tube


Now I've a different problem. It went thru all the motions of exporting
an .ngc but didn't generate the file, all without any error.  Do I need
another plugin?

In fact, the only way it will create ANY kind of a file is as *.FCstd's.

WTH?


i have used freecad enough to be a middle'n noib
this is how i do it
save my .fcstd so i can come back and re-edit
in the top row select "Mesh design" in the drop down
in the left top panel select your design, "Cut"
in the top menu click "Meshes"
select "Create mesh from shape"
select "Standard"
select "OK"
in left top panel click on "Cut (Meshed)"
right click and select "Export mesh"
this creates a .stl
then use cura to slice


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Gene Heskett]

On Saturday 19 September 2020 12:06:30 grumpy--- via Emc-users wrote:

> On Sat, 19 Sep 2020, Gene Heskett wrote:
> > Greetings all;
> >
> > I am determined to create the adapter to bolt or clamp to the worm
> > bearing boss stick out of this BS-1 in hope that I will eventually
> > get that encoded motor I ordered.  So I went out and took some
> > measurements.
> >
> > The diameter of where it will clamp to is 28mm.
> > The diameter of the worm shaft sticking out of that is 19mm.
> > And this 19mm shaft is double flatted, 10mm across the flats.
> >
> > Now, where do I find a freecad tut that will allow me to create a
> > ring that will clamp or grub screw to the 28mm piece, and flare out
> > to about 50mm diameter to mount this worm drive and motor when it
> > arrives and I can take some measurements? I have managed to create a
> > starter cylinder but haven't found where to set its length or or
> > diameter. Rank, brand new bee here IOW.  And its solid rod, not a
> > ring, so is probably a throw away at this point.
> >
> > The youtube videos are confusing because they are outdated. These 2
> > seems to redefine the phrase "moveing target".
> >
> > Since I've installed the AppImages of both freecad and cura, 2 weeks
> > ago, both have been updated several times, and I have added
> > shortname links to the AppImages, in general making them no-brainers
> > to run. But I do have to fix the ln's when they update.
>
> not sure if this'll help or not
> in the top row there is a drop down, select "part"
> in the second row click on the cylinder
> in the left top panel select the word "cylinder"
> in the left lower panel adjust the properties
> in the second row click on the cylinder again
> adjust the diameter of the second cylinder to be smaller than the
> first cylinder in the left top panel select the word "cylinder"
> in the left top panel hold the ctrl key and select the word
> "cylinder001" in the third row of the icons click on the third one,
> tool tip "Make a cut of two shapes" now you have a tube
>
Now I've a different problem. It went thru all the motions of exporting 
an .ngc but didn't generate the file, all without any error.  Do I need 
another plugin?

In fact, the only way it will create ANY kind of a file is as *.FCstd's.

WTH?

Thanks Grumpy.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Chris Albertson]

Sorry, left out links.   You really have to work through this...
https://wiki.freecadweb.org/Getting_started

This is one problem with Open Sorce CAD.The billion-dollar
multinational corporations can afford to produce professional-level online
classes and hire good voice actors for the voice-overs but three
guys working for free in the evenings just don't have the means to develop
quality training materials.  So you need to read the above web page and
then go to Youtube where the quality varies.

But this guy seems to do a good job
https://www.youtube.com/channel/UCRQCzMftIUElX03kHjV4rmQ



On Sat, Sep 19, 2020 at 9:43 AM Chris Albertson 
wrote:

> You will not find a tutorial that will walk you through making the part
> you want.   But you will find one that starts out showing you how to make a
> 2D sketch And another that shows how to define dimension that are
> functions of other dimensions and another that talks about making
> "extrusions"
>
> Actually the process is the same if you were to use FreeCAD, Solidworks,
> or Fusion.  The location of the menu picks change and the lines use
> different color codes.But you really do have to start from zero and
> follow along or you miss the fundamentals.
> The part you want is very "geometric" so it will be easy to model, unlike
> say if you wanted to make a pair of scissors.   So only the first half
> dozen video is needed.
>
> What you will find is that making the part in CAD is like making it in the
> shop.  You start with custom extrusion then remove metal by drilling and
> cutting, then round off the edges.Many people come into 3D CAD thinking
> they are going to make a drawing of the part.  No, you make a model of the
> part.   Once you do 5 or 8 of the graduated example exercises it will make
> sense.  But don't skip ahead.
>
> I'm actually watching a Solidworks online class now.
>
> On Sat, Sep 19, 2020 at 7:43 AM Gene Heskett  wrote:
>
>> Greetings all;
>>
>> I am determined to create the adapter to bolt or clamp to the worm
>> bearing boss stick out of this BS-1 in hope that I will eventually get
>> that encoded motor I ordered.  So I went out and took some measurements.
>>
>> The diameter of where it will clamp to is 28mm.
>> The diameter of the worm shaft sticking out of that is 19mm.
>> And this 19mm shaft is double flatted, 10mm across the flats.
>>
>> Now, where do I find a freecad tut that will allow me to create a ring
>> that will clamp or grub screw to the 28mm piece, and flare out to about
>> 50mm diameter to mount this worm drive and motor when it arrives and I
>> can take some measurements? I have managed to create a starter cylinder
>> but haven't found where to set its length or or diameter. Rank, brand
>> new bee here IOW.  And its solid rod, not a ring, so is probably a throw
>> away at this point.
>>
>> The youtube videos are confusing because they are outdated. These 2 seems
>> to redefine the phrase "moveing target".
>>
>> Since I've installed the AppImages of both freecad and cura, 2 weeks ago,
>> both have been updated several times, and I have added shortname links
>> to the AppImages, in general making them no-brainers to run. But I do
>> have to fix the ln's when they update.
>>
>> Thanks for any guidance.
>>
>> Cheers, Gene Heskett
>> --
>> "There are four boxes to be used in defense of liberty:
>>  soap, ballot, jury, and ammo. Please use in that order."
>> -Ed Howdershelt (Author)
>> If we desire respect for the law, we must first make the law respectable.
>>  - Louis D. Brandeis
>> Genes Web page 
>>
>>
>> ___
>> Emc-users mailing list
>> Emc-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/emc-users
>>
>
>
> --
>
> Chris Albertson
> Redondo Beach, California
>


-- 

Chris Albertson
Redondo Beach, California

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Gene Heskett]

On Saturday 19 September 2020 12:06:30 grumpy--- via Emc-users wrote:

> On Sat, 19 Sep 2020, Gene Heskett wrote:
> > Greetings all;
> >
> > I am determined to create the adapter to bolt or clamp to the worm
> > bearing boss stick out of this BS-1 in hope that I will eventually
> > get that encoded motor I ordered.  So I went out and took some
> > measurements.
> >
> > The diameter of where it will clamp to is 28mm.
> > The diameter of the worm shaft sticking out of that is 19mm.
> > And this 19mm shaft is double flatted, 10mm across the flats.
> >
> > Now, where do I find a freecad tut that will allow me to create a
> > ring that will clamp or grub screw to the 28mm piece, and flare out
> > to about 50mm diameter to mount this worm drive and motor when it
> > arrives and I can take some measurements? I have managed to create a
> > starter cylinder but haven't found where to set its length or or
> > diameter. Rank, brand new bee here IOW.  And its solid rod, not a
> > ring, so is probably a throw away at this point.
> >
> > The youtube videos are confusing because they are outdated. These 2
> > seems to redefine the phrase "moveing target".
> >
> > Since I've installed the AppImages of both freecad and cura, 2 weeks
> > ago, both have been updated several times, and I have added
> > shortname links to the AppImages, in general making them no-brainers
> > to run. But I do have to fix the ln's when they update.
>
> not sure if this'll help or not
> in the top row there is a drop down, select "part"
> in the second row click on the cylinder
> in the left top panel select the word "cylinder"
> in the left lower panel adjust the properties
> in the second row click on the cylinder again
> adjust the diameter of the second cylinder to be smaller than the
> first cylinder in the left top panel select the word "cylinder"
> in the left top panel hold the ctrl key and select the word
> "cylinder001" in the third row of the icons click on the third one,
> tool tip "Make a cut of two shapes" now you have a tube

I now have 2 cylinders within each other, ready to make it hollow, but 
that icon is ghosted/disabled.  Ahh ctrl key 4 2nd selection, got a 
torus now, progress.

Saved.

Thanks Grumpy.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Dave Matthews]

On Sat, Sep 19, 2020 at 12:46 PM Chris Albertson
 wrote:
>

>
> I'm actually watching a Solidworks online class now.
>
>
>From the previous emails I am assuming the EAA version.  Does it
include the CAM modules?  Looking for a Fusion replacement that will
allow design and tool path generation all in one.

Dave


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[Chris Albertson]

You will not find a tutorial that will walk you through making the part you
want.   But you will find one that starts out showing you how to make a 2D
sketch And another that shows how to define dimension that are functions of
other dimensions and another that talks about making "extrusions"

Actually the process is the same if you were to use FreeCAD, Solidworks, or
Fusion.  The location of the menu picks change and the lines use different
color codes.But you really do have to start from zero and follow along
or you miss the fundamentals.
The part you want is very "geometric" so it will be easy to model, unlike
say if you wanted to make a pair of scissors.   So only the first half
dozen video is needed.

What you will find is that making the part in CAD is like making it in the
shop.  You start with custom extrusion then remove metal by drilling and
cutting, then round off the edges.Many people come into 3D CAD thinking
they are going to make a drawing of the part.  No, you make a model of the
part.   Once you do 5 or 8 of the graduated example exercises it will make
sense.  But don't skip ahead.

I'm actually watching a Solidworks online class now.

On Sat, Sep 19, 2020 at 7:43 AM Gene Heskett  wrote:

> Greetings all;
>
> I am determined to create the adapter to bolt or clamp to the worm
> bearing boss stick out of this BS-1 in hope that I will eventually get
> that encoded motor I ordered.  So I went out and took some measurements.
>
> The diameter of where it will clamp to is 28mm.
> The diameter of the worm shaft sticking out of that is 19mm.
> And this 19mm shaft is double flatted, 10mm across the flats.
>
> Now, where do I find a freecad tut that will allow me to create a ring
> that will clamp or grub screw to the 28mm piece, and flare out to about
> 50mm diameter to mount this worm drive and motor when it arrives and I
> can take some measurements? I have managed to create a starter cylinder
> but haven't found where to set its length or or diameter. Rank, brand
> new bee here IOW.  And its solid rod, not a ring, so is probably a throw
> away at this point.
>
> The youtube videos are confusing because they are outdated. These 2 seems
> to redefine the phrase "moveing target".
>
> Since I've installed the AppImages of both freecad and cura, 2 weeks ago,
> both have been updated several times, and I have added shortname links
> to the AppImages, in general making them no-brainers to run. But I do
> have to fix the ln's when they update.
>
> Thanks for any guidance.
>
> Cheers, Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> If we desire respect for the law, we must first make the law respectable.
>  - Louis D. Brandeis
> Genes Web page 
>
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>


-- 

Chris Albertson
Redondo Beach, California

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad, latest, starter tut?

[grumpy--- via Emc-users]

On Sat, 19 Sep 2020, Gene Heskett wrote:


Greetings all;

I am determined to create the adapter to bolt or clamp to the worm
bearing boss stick out of this BS-1 in hope that I will eventually get
that encoded motor I ordered.  So I went out and took some measurements.

The diameter of where it will clamp to is 28mm.
The diameter of the worm shaft sticking out of that is 19mm.
And this 19mm shaft is double flatted, 10mm across the flats.

Now, where do I find a freecad tut that will allow me to create a ring
that will clamp or grub screw to the 28mm piece, and flare out to about
50mm diameter to mount this worm drive and motor when it arrives and I
can take some measurements? I have managed to create a starter cylinder
but haven't found where to set its length or or diameter. Rank, brand
new bee here IOW.  And its solid rod, not a ring, so is probably a throw
away at this point.

The youtube videos are confusing because they are outdated. These 2 seems
to redefine the phrase "moveing target".

Since I've installed the AppImages of both freecad and cura, 2 weeks ago,
both have been updated several times, and I have added shortname links
to the AppImages, in general making them no-brainers to run. But I do
have to fix the ln's when they update.


not sure if this'll help or not
in the top row there is a drop down, select "part"
in the second row click on the cylinder
in the left top panel select the word "cylinder"
in the left lower panel adjust the properties
in the second row click on the cylinder again
adjust the diameter of the second cylinder to be smaller than the first cylinder
in the left top panel select the word "cylinder"
in the left top panel hold the ctrl key and select the word "cylinder001"
in the third row of the icons click on the third one, tool tip "Make a cut of two 
shapes"
now you have a tube


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

[Emc-users] freecad, latest, starter tut?

[Gene Heskett]

Greetings all;

I am determined to create the adapter to bolt or clamp to the worm 
bearing boss stick out of this BS-1 in hope that I will eventually get 
that encoded motor I ordered.  So I went out and took some measurements.

The diameter of where it will clamp to is 28mm.
The diameter of the worm shaft sticking out of that is 19mm.
And this 19mm shaft is double flatted, 10mm across the flats.

Now, where do I find a freecad tut that will allow me to create a ring 
that will clamp or grub screw to the 28mm piece, and flare out to about 
50mm diameter to mount this worm drive and motor when it arrives and I 
can take some measurements? I have managed to create a starter cylinder 
but haven't found where to set its length or or diameter. Rank, brand 
new bee here IOW.  And its solid rod, not a ring, so is probably a throw 
away at this point.

The youtube videos are confusing because they are outdated. These 2 seems 
to redefine the phrase "moveing target".

Since I've installed the AppImages of both freecad and cura, 2 weeks ago, 
both have been updated several times, and I have added shortname links 
to the AppImages, in general making them no-brainers to run. But I do 
have to fix the ln's when they update.

Thanks for any guidance.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad vs BOM

[Gene Heskett]

On Tuesday 28 July 2020 15:38:19 Chris Albertson wrote:

> I'm looking at this imported step file.I see many details I'd
> change. For example the "bearing cap" has some M4 screws thread into
> holes with no threads and the blocks with the unthreaded holes look
> like they would break.  I'd fill that area with plastic or use some
> big fillets.  Lots of detailed design changes are needed.  Some are
> just personal preferences (like brass inserts vs nut pockets) and
> others are fixing shortcuts the designer took.

Your thoughts are correct, I just checked the hole size against a 4mm 
reamer, and its bigger, enough the screw will make its own threads. I 
don't care for that either unless the screw is installed hot. But all 
I'll do is ream the hole in the top plate below the head of the screw 
for sample #1..
>
> Also, it would be better if the unit was designed around 608 skate
> bearings just because those are so cheap and easy to get but I'm not
> going to de-dimension the entire unit for this.

608's would be bigger, which would expand it all.  And these aren't that 
much pricier.
>
> But I bet this would work as-is.  The idea is that you build one,
> see what needs changing then build a second version.

Precisely.

> After perfecting 
> it then I assume everyone reading this owns a CNC machine, you make
> some parts in metal from your perfected CAD files. Certainly, the
> housings and output plates could be made on a hobby-grade CNC machine.
>  That is the best use of printing from CAD files, the same files can
> drive CNC or 3D prints so you prototype in plastic before cutting an
> expensive block of metal.

Not to mention the body alone is over 39 hours to print. Maybe even 40 
hrs. :(

> I bet I'd never find the exact motor the designer had and I'd have to
> adapt the design to whatever I wanted to use.

I'm salvaging old 5.25" drives, figure on spinning off some of the tape 
pulley, and double flatting it once I am inside the SQ nuts. And JBWeld 
it once it runs by itself.  That 5mm shaft is a huge weak point, nowhere 
near enough materiel in back of the nuts. JBWelding the top to the nut 
risers will also help considerably. I've not yet found if the drivers I 
have can be turned down enough to keep the motor cool enough to be 
bolted to the PLA.  Thats another consideration...

> If the goal is to drive a machine tool axis this would work as it
> can't be back driven like a belt of spur gear reductio can.

Ditto a well balanced Meade DS-10 scope, which may have a half pound 
eyepiece in the holder, or a 2+lb 35mm SLR film camera. Suitable 
balancing counterweights will be needed.
> On Tue, Jul 28, 2020 at 11:41 AM Gene Heskett  
wrote:
> > On Tuesday 28 July 2020 12:52:09 Chris Albertson wrote:
> > > Don't scale the entire part unless caliper show you the entire
> > > part is scaled too small.  (this is very unlikely)  Better to
> > > simply adjust the one hole you need to be larger.   Or if it is
> > > less than about 0.1mm put the part on a lather and bore it out to
> > > size.   I did this to all my timing belt rings to make them fit
> > > perfectly to the 24mm hubs.   If you go slow so as not to melt the
> > > PLA the carbide boring bar works and just took off "fuzz"
> >
> > holes aren't bothering me, other than hard toremove support crap.
> > What is bothering me is the incomplete mesh I saw in the movies, and
> > that easily fixed by changing the printer x and y scales.
> >
> > I think its obvious now that whats published is not 100% optimized.
> >
> > > The hole seems small but usually, it is because the plastic was
> > > not laid down perfectly and there are bumps and ridges and lines
> > > inside the hole. Make the hole perfect rather then making another
> > > larger not-perfect hole. Also it is MUCH quicker to bore the hole
> > > then re-print the part.
> > >
> > > The other trick I do is to make "temporary" bearings with either
> > > aluminum or even PLA while waiting for the real bearing to arrive.
> > > You could make them on a manual lathe in a few minutes and then
> > > you could verify the parts work and there is not OTHER problem
> > > before doing another 16 hour print
> > >
> > > I'd be surprised if you did not need to clean up the fine pitch
> > > gears with a nail file.
> >
> > They are amazingly clean after removal of the brim. 10 minute job to
> > clean them up.
> >
> > > Most 3D prints require some post-processing with a
> > > tiny file and maybe #600 wet and dry paper.A boring bar makes
> > > the inside of holes smooth as glass.
> > >
> > > A read a translation of the designer's blog page and it seems he
> > > wants to make a 6 axis arm with these.   He will probably need to
> > > make some of the parts near the base of the arm in metal
> >
> > I wouldn't be surprised. These are, if built as published, going to
> > have enough backlash to wreck a 6 joint arm. What I'm getting off
> > the printer, does not always match his pix.  Properly fine tuned it
> > 

Re: [Emc-users] freecad vs BOM

[Chris Albertson]

I'm looking at this imported step file.I see many details I'd change.
 For example the "bearing cap" has some M4 screws thread into holes with no
threads and the blocks with the unthreaded hills look like they would
break.  I'd fill that area with plastic or use some big fillets.  Lots of
detailed design changes are needed.  Some are just personal preferences
(like brass inserts vs nut pockets) and others are fixing shortcuts the
designer took.

Also, it would be better if the unit was designed around 608 skate bearings
just because those are so cheap and easy to get but I'm not going to
de-dimension the entire unit for this.

But I bet this would work as-is.  The idea is that you build one, see
what needs changing then build a second version.  After perfecting it then
I assume everyone reading this owns a CNC machine, you make some parts in
metal from your perfected CAD files. Certainly, the housings and output
plates could be made on a hobby-grade CNC machine.  That is the best use of
printing from CAD files, the same files can drive CNC or 3D prints so you
prototype in plastic before cutting an expensive block of metal.

I bet I'd never find the exact motor the designer had and I'd have to adapt
the design to whatever I wanted to use.

If the goal is to drive a machine tool axis this would work as it can't be
back driven like a belt of spur gear reductio can.




On Tue, Jul 28, 2020 at 11:41 AM Gene Heskett  wrote:

> On Tuesday 28 July 2020 12:52:09 Chris Albertson wrote:
>
> > Don't scale the entire part unless caliper show you the entire part is
> > scaled too small.  (this is very unlikely)  Better to simply adjust
> > the one hole you need to be larger.   Or if it is less than about
> > 0.1mm put the part on a lather and bore it out to size.   I did this
> > to all my timing belt rings to make them fit perfectly to the 24mm
> > hubs.   If you go slow so as not to melt the PLA the carbide boring
> > bar works and just took off "fuzz"
> >
> holes aren't bothering me, other than hard toremove support crap.
> What is bothering me is the incomplete mesh I saw in the movies, and that
> easily fixed by changing the printer x and y scales.
>
> I think its obvious now that whats published is not 100% optimized.
>
> > The hole seems small but usually, it is because the plastic was not
> > laid down perfectly and there are bumps and ridges and lines inside
> > the hole. Make the hole perfect rather then making another larger
> > not-perfect hole. Also it is MUCH quicker to bore the hole then
> > re-print the part.
> >
> > The other trick I do is to make "temporary" bearings with either
> > aluminum or even PLA while waiting for the real bearing to arrive.
> > You could make them on a manual lathe in a few minutes and then you
> > could verify the parts work and there is not OTHER problem before
> > doing another 16 hour print
> >
> > I'd be surprised if you did not need to clean up the fine pitch gears
> > with a nail file.
>
> They are amazingly clean after removal of the brim. 10 minute job to
> clean them up.
>
> > Most 3D prints require some post-processing with a
> > tiny file and maybe #600 wet and dry paper.A boring bar makes the
> > inside of holes smooth as glass.
> >
> > A read a translation of the designer's blog page and it seems he wants
> > to make a 6 axis arm with these.   He will probably need to make some
> > of the parts near the base of the arm in metal
>
> I wouldn't be surprised. These are, if built as published, going to have
> enough backlash to wreck a 6 joint arm. What I'm getting off the
> printer, does not always match his pix.  Properly fine tuned it
> definitely has commercial prospects to be exploited, and I can do a bit
> of that fine tuning.
>
> Thanks Chris
>
> [...]
>
>
> Cheers, Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> If we desire respect for the law, we must first make the law respectable.
>  - Louis D. Brandeis
> Genes Web page 
>
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>


-- 

Chris Albertson
Redondo Beach, California

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad vs BOM

[Gene Heskett]

On Tuesday 28 July 2020 12:52:09 Chris Albertson wrote:

> Don't scale the entire part unless caliper show you the entire part is
> scaled too small.  (this is very unlikely)  Better to simply adjust
> the one hole you need to be larger.   Or if it is less than about
> 0.1mm put the part on a lather and bore it out to size.   I did this
> to all my timing belt rings to make them fit perfectly to the 24mm
> hubs.   If you go slow so as not to melt the PLA the carbide boring
> bar works and just took off "fuzz"
>
holes aren't bothering me, other than hard toremove support crap.
What is bothering me is the incomplete mesh I saw in the movies, and that 
easily fixed by changing the printer x and y scales.

I think its obvious now that whats published is not 100% optimized.

> The hole seems small but usually, it is because the plastic was not
> laid down perfectly and there are bumps and ridges and lines inside
> the hole. Make the hole perfect rather then making another larger
> not-perfect hole. Also it is MUCH quicker to bore the hole then
> re-print the part.
>
> The other trick I do is to make "temporary" bearings with either
> aluminum or even PLA while waiting for the real bearing to arrive. 
> You could make them on a manual lathe in a few minutes and then you
> could verify the parts work and there is not OTHER problem before
> doing another 16 hour print
>
> I'd be surprised if you did not need to clean up the fine pitch gears
> with a nail file.

They are amazingly clean after removal of the brim. 10 minute job to 
clean them up.

> Most 3D prints require some post-processing with a 
> tiny file and maybe #600 wet and dry paper.A boring bar makes the
> inside of holes smooth as glass.
>
> A read a translation of the designer's blog page and it seems he wants
> to make a 6 axis arm with these.   He will probably need to make some
> of the parts near the base of the arm in metal

I wouldn't be surprised. These are, if built as published, going to have 
enough backlash to wreck a 6 joint arm. What I'm getting off the 
printer, does not always match his pix.  Properly fine tuned it 
definitely has commercial prospects to be exploited, and I can do a bit 
of that fine tuning.

Thanks Chris

[...]


Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad vs BOM

[Gene Heskett]

On Tuesday 28 July 2020 12:34:33 Martin Dobbins wrote:

> Freecad newbie, and I'd like to get a printout of the parts list in
> this .step file.  The list it shows in the upper left panel.
>
> This is version 16, is it possible, and if so how?
>
> Hi Gene,
>
> Just tried to reply to you because I tried this out with version 19.
> I'm a newbie on Freecad too, so I followed this video:
>
> https://www.youtube.com/watch?v=REEG7MAqlMw
>
Thats A windows, an B 18-pre.  I have 18 here, but not the supporting 
python stuff without updateing to buster, I'm still on stretch. And I'm 
not going out to get a new drive for a buster install with this damned 
virus on the loose. I do have some 240GB SSD's which ought to be good 
enough, but I'm also waiting for the Linuxcnc folks to spin up a buster 
installer and AIUI, its the RTAI for a later kernel than 3.20 that is 
the holdup. So I'm stuck on stretch and freecad 16 ATM.

> I tried to attach the resulting Freecad file for you to open but it
> exceeded posting limits (it's a 2mb file), so it's stuck in
> moderation.

Where it will expire from lack of oxygen. :)

> If it doesn't make it through, I can probably come up with a listed
> BOM, if that's what you are after?
>
Yes, so I can order enough screws to assemble at least 3 of these once I 
do some size trimming to make it better, both the flexgear, and the 
driving bearing carrier need scaled up a couple percent to optimize the 
engagement.  At these qty's, I may as well order boxes of the common 
types. All allen head cap style.
from greping it looks like 

4 ea M3x10 screws per unit, are nema-17 motor mounts, needs M3 nuts on 
inside, but are not listed, nor shown when taken apart by freecad. ???
self-threading in the plastic?
14 ea M4x10 screws per unit
2 ea M4x15 screws per unit
6 ea M4x25 screws per unit
18 ea M4_NUT's per unit
2 ea SQ_NUT_M4 per unit

I think that covers it.

Thanks for the push Martin.

> Martin

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad vs BOM

[Chris Albertson]

This is likey a good enough BOM for that step file  Make it by using
"grep ASSEMBLY_USAGE_OCCURRENCE" on the .step file.   It will require some
hand cleanup.

#206=NEXT_ASSEMBLY_USAGE_OCCURRENCE('MOTOR_CAP:1','MOTOR_CAP:1',

#207=NEXT_ASSEMBLY_USAGE_OCCURRENCE('NEMA17:1','NEMA17:1','NEMA17:1',#106458,

#208=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M3x10:1','M3x10:1','M3x10:1',#106458,

#209=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M3x10:2','M3x10:2','M3x10:2',#106458,

#210=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M3x10:4','M3x10:4','M3x10:4',#106458,

#211=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M3x10:3','M3x10:3','M3x10:3',#106458,

#212=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4x25:2','M4x25:2','M4x25:2',#106458,

#213=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4x25:6','M4x25:6','M4x25:6',#106458,

#214=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4x25:3','M4x25:3','M4x25:3',#106458,

#215=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4x25:5','M4x25:5','M4x25:5',#106458,

#216=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4x25:4','M4x25:4','M4x25:4',#106458,

#217=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4x25:1','M4x25:1','M4x25:1',#106458,

#218=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4_NUT:12','M4_NUT:12','M4_NUT:12',

#219=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4_NUT:14','M4_NUT:14','M4_NUT:14',

#220=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4_NUT:16','M4_NUT:16','M4_NUT:16',

#221=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4_NUT:15','M4_NUT:15','M4_NUT:15',

#222=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4_NUT:17','M4_NUT:17','M4_NUT:17',

#223=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4_NUT:13','M4_NUT:13','M4_NUT:13',

#224=NEXT_ASSEMBLY_USAGE_OCCURRENCE('WAVE_BEARING_PLATE:1',

#225=NEXT_ASSEMBLY_USAGE_OCCURRENCE('WAVE_BEARING_CAP:1',

#226=NEXT_ASSEMBLY_USAGE_OCCURRENCE('606ZZ:1','606ZZ:1','606ZZ:1',#106447,

#227=NEXT_ASSEMBLY_USAGE_OCCURRENCE('606ZZ:2','606ZZ:2','606ZZ:2',#106447,

#228=NEXT_ASSEMBLY_USAGE_OCCURRENCE('SQ_NUT_M4:1','SQ_NUT_M4:1',

#229=NEXT_ASSEMBLY_USAGE_OCCURRENCE('SQ_NUT_M4:2','SQ_NUT_M4:2',

#230=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4x15:1','M4x15:1','M4x15:1',#106447,

#231=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4x15:2','M4x15:2','M4x15:2',#106447,

#232=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4x10:1','M4x10:1','M4x10:1',#106447,

#233=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4x10:2','M4x10:2','M4x10:2',#106447,

#234=NEXT_ASSEMBLY_USAGE_OCCURRENCE('606ZZ:3','606ZZ:3','606ZZ:3',#106447,

#235=NEXT_ASSEMBLY_USAGE_OCCURRENCE('606ZZ:4','606ZZ:4','606ZZ:4',#106447,

#236=NEXT_ASSEMBLY_USAGE_OCCURRENCE('606ZZ:5','606ZZ:5','606ZZ:5',#106447,

#237=NEXT_ASSEMBLY_USAGE_OCCURRENCE('606ZZ:6','606ZZ:6','606ZZ:6',#106447,

#238=NEXT_ASSEMBLY_USAGE_OCCURRENCE('HOUSING:1','HOUSING:1','HOUSING:1',

#239=NEXT_ASSEMBLY_USAGE_OCCURRENCE('6807ZZ:1','6807ZZ:1','6807ZZ:1',#106455,

#240=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4_NUT:1','M4_NUT:1','M4_NUT:1',#106455,

#241=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4_NUT:7','M4_NUT:7','M4_NUT:7',#106455,

#242=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4_NUT:8','M4_NUT:8','M4_NUT:8',#106455,

#243=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4_NUT:9','M4_NUT:9','M4_NUT:9',#106455,

#244=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4_NUT:10','M4_NUT:10','M4_NUT:10',

#245=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4_NUT:11','M4_NUT:11','M4_NUT:11',

#246=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4x10:3','M4x10:3','M4x10:3',#106455,

#247=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4x10:5','M4x10:5','M4x10:5',#106455,

#248=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4x10:6','M4x10:6','M4x10:6',#106455,

#249=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4x10:7','M4x10:7','M4x10:7',#106455,

#250=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4x10:4','M4x10:4','M4x10:4',#106455,

#251=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4x10:8','M4x10:8','M4x10:8',#106455,

#252=NEXT_ASSEMBLY_USAGE_OCCURRENCE('OUTPUT_SHAFT:1','OUTPUT_SHAFT:1',

#253=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4_NUT:23','M4_NUT:23','M4_NUT:23',

#254=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4_NUT:22','M4_NUT:22','M4_NUT:22',

#255=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4_NUT:21','M4_NUT:21','M4_NUT:21',

#256=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4_NUT:20','M4_NUT:20','M4_NUT:20',

#257=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4_NUT:19','M4_NUT:19','M4_NUT:19',

#258=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4_NUT:18','M4_NUT:18','M4_NUT:18',

#259=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4x10:14','M4x10:14','M4x10:14',#106463,

#260=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4x10:13','M4x10:13','M4x10:13',#106463,

#261=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4x10:12','M4x10:12','M4x10:12',#106463,

#262=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4x10:11','M4x10:11','M4x10:11',#106463,

#263=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4x10:10','M4x10:10','M4x10:10',#106463,

#264=NEXT_ASSEMBLY_USAGE_OCCURRENCE('M4x10:9','M4x10:9','M4x10:9',#106463,

#265=NEXT_ASSEMBLY_USAGE_OCCURRENCE('WAVE_GEN1_ASM:1','WAVE_GEN1_ASM:1',

#266=NEXT_ASSEMBLY_USAGE_OCCURRENCE('FLEXGEAR:1','FLEXGEAR:1',

#267=NEXT_ASSEMBLY_USAGE_OCCURRENCE('CIRCULAR_SPLINE:1',

#268=NEXT_ASSEMBLY_USAGE_OCCURRENCE('ASM_HOUSING:1','ASM_HOUSING:1',

#269=NEXT_ASSEMBLY_USAGE_OCCURRENCE('ASM_MOTOR:1','ASM_MOTOR:1',

#270=NEXT_ASSEMBLY_USAGE_OCCURRENCE('ASM_OUTPUT_SHAFT:1',

On Tue, Jul 28, 2020 at 

Re: [Emc-users] freecad vs BOM

[Chris Albertson]

Don't scale the entire part unless caliper show you the entire part is
scaled too small.  (this is very unlikely)  Better to simply adjust the one
hole you need to be larger.   Or if it is less than about 0.1mm put the
part on a lather and bore it out to size.   I did this to all my timing
belt rings to make them fit perfectly to the 24mm hubs.   If you go slow so
as not to melt the PLA the carbide boring bar works and just took off "fuzz"

The hole seems small but usually, it is because the plastic was not laid
down perfectly and there are bumps and ridges and lines inside the hole.
 Make the hole perfect rather then making another larger not-perfect hole.
 Also it is MUCH quicker to bore the hole then re-print the part.

The other trick I do is to make "temporary" bearings with either aluminum
or even PLA while waiting for the real bearing to arrive.  You could make
them on a manual lathe in a few minutes and then you could verify the parts
work and there is not OTHER problem before doing another 16 hour print

I'd be surprised if you did not need to clean up the fine pitch gears with
a nail file.  Most 3D prints require some post-processing with a tiny file
and maybe #600 wet and dry paper.A boring bar makes the inside of holes
smooth as glass.

A read a translation of the designer's blog page and it seems he wants to
make a 6 axis arm with these.   He will probably need to make some of the
parts near the base of the arm in metal


On Tue, Jul 28, 2020 at 4:08 AM Gene Heskett  wrote:

> On Tuesday 28 July 2020 02:59:01 Chris Albertson wrote:
>
> > .STEP started out as the native format for Solidworks but is now an
> > ISO standard.  You can read and write the file with many different
> > programs. FreeCAD is one.
> >
> > But the file is just a plain old ASCII text file.  If there is some
> > data inside try "grep" or just a text editor and search for a word.
> >
> > NIST has a web app that puts a .step file into a spreadsheet
> > https://www.nist.gov/services-resources/software/step-file-analyzer-an
> >d-viewer
> >
> >  >nd-viewer> What are you making?  I read a post about 50 ball bearings.
> > THat is a complex machine.  A four legged walking robot?  Got a link
> > to the .step file?
> >
> No, 3 of a harmonic drive I found on thingiverse, each of which uses 7
> ball bearings. One larger one for output shaft, and 6 smaller ones for
> the wave driver.  Drives with a std nema-17 motor.  The link has been
> posted to this list twice.
>
> 
>
> But if making it, a warning, the bearing carrier is a couple hairs small,
> so when rendering it. I'll have to wait on the bearings and build one to
> see what sort of a ratio to set the printers x,y scales to in order to
> build the right size for those final 6 parts. It has IMO a slightly
> small flex gear, and it could be that a similar correction might be
> needed for that.  It looks like a good design otherwise, but these mods
> will bring its precision more into line with the several hundred dollar
> metal clones.  Making the flex gear bigger by 1 or 2%, will reduce the
> flexion needed to drive it, extending its life.  Or one could scale the
> outer spline down that same %. I'll fix the wave bearing carrier first
> for full engagement, and if that pulls the teeth too far apart at the
> inside flex where the teeth clear and are stepping across each other,
> and tips are pointed at each other, what they clear by could be reduced
> to zip by scaling up the flex gear as it prints, probably by reprinting
> them once that ratio is determined. That should reduce the flex and make
> a longer lasting drive.
>
> 2 of these 3 will become telescope drive parts, I've had a Meade DS-10
> for ages that needs driven from a linux proggy called stellarium and one
> might wind up redrilled for a nema-23 mount and maybe adapted to drive
> that BS-1 indexing head's worm.  That will stress it a lot harder as I
> intend to be able to move it under cutting load. Might have to remake
> the moving parts from PET for that.  We'll see...
>
> > On Mon, Jul 27, 2020 at 11:10 PM Gene Heskett 
> wrote:
> > > Greetings all;
> > >
> > > Freecad newbie, and I'd like to get a printout of the parts list in
> > > this .step file.  The list it shows in the upper left panel.
> > >
> > > This is version 16, is it possible, and if so how?
> > >
> > > Thanks.
> > >
> > > Cheers, Gene Heskett
> > > --
> > > "There are four boxes to be used in defense of liberty:
> > >  soap, ballot, jury, and ammo. Please use in that order."
> > > -Ed Howdershelt (Author)
> > > If we desire respect for the law, we must first make the law
> > > respectable. - Louis D. Brandeis
> > > Genes Web page 
> > >
> > >
> > > ___
> > > Emc-users mailing list
> > > Emc-users@lists.sourceforge.net
> > > 

Re: [Emc-users] freecad vs BOM

[Martin Dobbins]

Freecad newbie, and I'd like to get a printout of the parts list in
this .step file.  The list it shows in the upper left panel.

This is version 16, is it possible, and if so how?

Hi Gene,

Just tried to reply to you because I tried this out with version 19.
I'm a newbie on Freecad too, so I followed this video:

https://www.youtube.com/watch?v=REEG7MAqlMw

I tried to attach the resulting Freecad file for you to open but it exceeded 
posting limits (it's a 2mb file), so it's stuck in moderation.

If it doesn't make it through, I can probably come up with a listed BOM, if 
that's what you are after?

Martin




___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad vs BOM

[Gene Heskett]

On Tuesday 28 July 2020 02:59:01 Chris Albertson wrote:

> .STEP started out as the native format for Solidworks but is now an
> ISO standard.  You can read and write the file with many different
> programs. FreeCAD is one.
>
> But the file is just a plain old ASCII text file.  If there is some
> data inside try "grep" or just a text editor and search for a word.
>
> NIST has a web app that puts a .step file into a spreadsheet
> https://www.nist.gov/services-resources/software/step-file-analyzer-an
>d-viewer
>
> nd-viewer> What are you making?  I read a post about 50 ball bearings. 
> THat is a complex machine.  A four legged walking robot?  Got a link
> to the .step file?
>
No, 3 of a harmonic drive I found on thingiverse, each of which uses 7 
ball bearings. One larger one for output shaft, and 6 smaller ones for 
the wave driver.  Drives with a std nema-17 motor.  The link has been 
posted to this list twice.



But if making it, a warning, the bearing carrier is a couple hairs small, 
so when rendering it. I'll have to wait on the bearings and build one to 
see what sort of a ratio to set the printers x,y scales to in order to 
build the right size for those final 6 parts. It has IMO a slightly 
small flex gear, and it could be that a similar correction might be 
needed for that.  It looks like a good design otherwise, but these mods 
will bring its precision more into line with the several hundred dollar 
metal clones.  Making the flex gear bigger by 1 or 2%, will reduce the 
flexion needed to drive it, extending its life.  Or one could scale the 
outer spline down that same %. I'll fix the wave bearing carrier first 
for full engagement, and if that pulls the teeth too far apart at the 
inside flex where the teeth clear and are stepping across each other, 
and tips are pointed at each other, what they clear by could be reduced 
to zip by scaling up the flex gear as it prints, probably by reprinting 
them once that ratio is determined. That should reduce the flex and make 
a longer lasting drive.

2 of these 3 will become telescope drive parts, I've had a Meade DS-10 
for ages that needs driven from a linux proggy called stellarium and one 
might wind up redrilled for a nema-23 mount and maybe adapted to drive 
that BS-1 indexing head's worm.  That will stress it a lot harder as I 
intend to be able to move it under cutting load. Might have to remake 
the moving parts from PET for that.  We'll see...

> On Mon, Jul 27, 2020 at 11:10 PM Gene Heskett  
wrote:
> > Greetings all;
> >
> > Freecad newbie, and I'd like to get a printout of the parts list in
> > this .step file.  The list it shows in the upper left panel.
> >
> > This is version 16, is it possible, and if so how?
> >
> > Thanks.
> >
> > Cheers, Gene Heskett
> > --
> > "There are four boxes to be used in defense of liberty:
> >  soap, ballot, jury, and ammo. Please use in that order."
> > -Ed Howdershelt (Author)
> > If we desire respect for the law, we must first make the law
> > respectable. - Louis D. Brandeis
> > Genes Web page 
> >
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users


Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] freecad vs BOM

[Chris Albertson]

.STEP started out as the native format for Solidworks but is now an ISO
standard.  You can read and write the file with many different programs.
FreeCAD is one.

But the file is just a plain old ASCII text file.  If there is some data
inside try "grep" or just a text editor and search for a word.

NIST has a web app that puts a .step file into a spreadsheet
https://www.nist.gov/services-resources/software/step-file-analyzer-and-viewer


What are you making?  I read a post about 50 ball bearings.  THat is a
complex machine.  A four legged walking robot?  Got a link to the .step
file?


On Mon, Jul 27, 2020 at 11:10 PM Gene Heskett  wrote:

> Greetings all;
>
> Freecad newbie, and I'd like to get a printout of the parts list in
> this .step file.  The list it shows in the upper left panel.
>
> This is version 16, is it possible, and if so how?
>
> Thanks.
>
> Cheers, Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> If we desire respect for the law, we must first make the law respectable.
>  - Louis D. Brandeis
> Genes Web page 
>
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>


-- 

Chris Albertson
Redondo Beach, California

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

[Emc-users] freecad vs BOM

[Gene Heskett]

Greetings all;

Freecad newbie, and I'd like to get a printout of the parts list in 
this .step file.  The list it shows in the upper left panel.

This is version 16, is it possible, and if so how?

Thanks.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad STL

[Chris Albertson]

If you followed those instructions, the object remained a mesh of triangles
over the whole operation.   But that's OK as the article was explaining STL
file mesh repair.  The repair method is reasonable, they have you import
the STL, make a tiny change then re-export the part as STL and have faith
that FreeCAD makes a good file this time.  It likely will as a cube is an
easy part.

But a true import of that STL would convert the cube back to a cube made of
six squares and turn the text back to text so you could do something like
changing the font.No software is really good at this and the user has
to do a lot of manual work.

As an experiment try changing the depth of the engraved text on that cube
and you will see right away the difference between a CAD file and the
imported STL.

On Wed, Jul 1, 2020 at 8:14 AM Martin Dobbins  wrote:

> I had some time on my hands 
>
> I decided to see if Freecad would import an stl.  I followed the
> instructions here:
>
> https://all3dp.com/1/7-free-stl-editors-edit-repair-stl-files/
>
> and used an XYZ calibration cube stl which came from here:
>
> https://www.thingiverse.com/thing:1278865/files
>
> The person who posted gave a link to how it was done:
>
>
> https://www.idig3dprinting.co.uk/news/how-to-guides/create-a-3d-printer-calibration-cube-in-freecad/
>
> So, the stl was originally made with Freecad with help from Inkscape.
>
> In my (admittedly naive) hands it seemed to work OK, although I did not
> delve onwards to Step 3 "STL Repair"
>
> Martin
>
>
>
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>


-- 

Chris Albertson
Redondo Beach, California

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

[Emc-users] Freecad STL

[Martin Dobbins]

I had some time on my hands 

I decided to see if Freecad would import an stl.  I followed the instructions 
here:

https://all3dp.com/1/7-free-stl-editors-edit-repair-stl-files/

and used an XYZ calibration cube stl which came from here:

https://www.thingiverse.com/thing:1278865/files

The person who posted gave a link to how it was done:

https://www.idig3dprinting.co.uk/news/how-to-guides/create-a-3d-printer-calibration-cube-in-freecad/

So, the stl was originally made with Freecad with help from Inkscape.

In my (admittedly naive) hands it seemed to work OK, although I did not delve 
onwards to Step 3 "STL Repair"

Martin




___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[andy pugh]

On Mon, 29 Jun 2020 at 23:01, John Alexander Stewart  wrote:

> Now, I'm likely totally wrong, but companies tied
> to DirectX have an incentive to keep Windows up there, and they are slowly
> getting hammered, and re-writing for OpenGL is of course $$

Autodesk have Fusion as a native app on the Mac (Which is how I use
it) So it does not seem likely that it is to do with DirectX.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[John Alexander Stewart]

Hi Bruce;

They are either dinosaurs, ref:

https://www.zdnet.com/article/microsoft-developer-reveals-linux-is-now-more-used-on-azure-than-windows-server/

or they are using DirectX, rather than OpenGL.

I did spend a *little* bit of time on the HTML5 standards group, and was
interested to hear of the reasons for WebGL being at such a low level (my
thought was that it should provide more  standardized methods) as note the
name is not WebDirectX.  Now, I'm likely totally wrong, but companies tied
to DirectX have an incentive to keep Windows up there, and they are slowly
getting hammered, and re-writing for OpenGL is of course $$

My random thoughts, anyway.

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[Bruce Layne]

Soon after the introduction of Fusion360, I inquired about a Linux
version on the Fusion360 forum.  I expressed the belief that Autodesk
must be using cross platform development tools, and while it wouldn't be
as simple as clicking a Compile For Linux button, it shouldn't be too
difficult to provide a Linux version.  I was met with extreme hostility
by the forum moderator, who was an Autodesk employee.  I was told that
Autodesk would not be releasing a Linux version of Fusion360 because
Linux users don't pay for software.  I was basically treated as if I was
a burglar who rang someone's doorbell and asked if they would be going
out that evening.  It was analogous to Microsoft's infamous "Linux is
cancer" comment.

I explained that I purchased a $1200 license for Eagle electronic CAD
software (plus recurring maintenance fees) specifically because there
was a native Linux version.  It didn't matter.  Apparently the official
Autodesk position was, "It wouldn't be that difficult to create a Linux
version of Fusion360, but we won't, because we hate you."

I'm a satisfied FreeCAD user.  Open source for the win.





On 6/29/20 4:45 PM, andy pugh wrote:
> On Mon, 29 Jun 2020 at 21:19, Chris Albertson  
> wrote:
>
>> I bet they open this up to everyone.   Mac is moving to Arm processors and
>> it would be easier for Autodesk to open up running in a browser then to
>> poort to Arm.
> I doubt that there will be much difficulty porting. Apple have done
> this twice before, and they know how to set up the tools and
> compatibility shims.
>
> LinuxCNC compiles for ARM with only very minor tweaks.
>


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[andy pugh]

On Mon, 29 Jun 2020 at 21:19, Chris Albertson  wrote:

> I bet they open this up to everyone.   Mac is moving to Arm processors and
> it would be easier for Autodesk to open up running in a browser then to
> poort to Arm.

I doubt that there will be much difficulty porting. Apple have done
this twice before, and they know how to set up the tools and
compatibility shims.

LinuxCNC compiles for ARM with only very minor tweaks.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[N]

> It looks like running in a browser is one of the features you get with a
> paid subscription.   Subscription is not a bad deal at $250 per year if you
> use it daily and you are making $100K per year with it.

You happen to know anywhere make this money with it?

In case I could work half as much as now.


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[Chris Albertson]

It looks like running in a browser is one of the features you get with a
paid subscription.   Subscription is not a bad deal at $250 per year if you
use it daily and you are making $100K per year with it.$250 is worth
just getting generative design and the more advanced CAM features

I bet they open this up to everyone.   Mac is moving to Arm processors and
it would be easier for Autodesk to open up running in a browser then to
poort to Arm.   If they don't do one or the other then they loose their
entire Mac user base.  If they do open ope the browser feature then it
automatically runs on Linux.

Apple is moving fast to Arm and Autodesk will have to follow.  I bet they
take the easy path.


On Mon, Jun 29, 2020 at 11:41 AM andy pugh  wrote:

> On Mon, 29 Jun 2020 at 19:01, Chris Albertson 
> wrote:
>
> > Onshape runs in a browser.  Fusion 360 is a native app for Windows and
> Mac.
>
> You definitely could run Fusion 360 in a browser in 2017.
>
> If I try to "open in web browser" one of my F360 models then I get
> told I don't have the correct subscription type
>
>
> https://forums.autodesk.com/t5/fusion-360-preview-functionality/browser-f360-getting-started/td-p/6932699
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is
> designed for the especial use of mechanical geniuses, daredevils and
> lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
>
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>


-- 

Chris Albertson
Redondo Beach, California

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

[Emc-users] Freecad

[Martin Dobbins]

I'm pretty sure this is a spoof and done for laughs, but this is the kind of 
thing that can happen if your cam doesn't let you specify which part to cut out 
first and doesn't cope well with drag knives.

https://www.youtube.com/watch?v=s1fs3ByL2Jg

I haven't had too much time to play today but managed to prove that the freecad 
drag knife dress up works.  It produces g code that shows the correct offset 
over run at corners followed by Z up to around surface and a g2 or g3 pirouette 
to reorient the cutter before Z plunge to depth.

Martin



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[Chris Albertson]

FreeCAD is Open Source.   You can add any new feature to it you want.

But for simple engraving dxf2gcode or maybe pycam works.  Both are open
source and written in Python and should run on any computer.  Fusion360
will create the vCare-like tool paths also it does parallel passes or
watermark or one followed by the other to reduce stairstep effect.   There
seem to be many ways to get this done.

I think LinuxCNC even has an image to g-code feature. Has anyone used it?
http://www.linuxcnc.org/docs/2.4/html/gui_image-to-gcode.html


T he trouble
is that most people get settled in on some method and stop experimenting
once they find something that works.  Al of this software are moving
targets and are evolving.



On Mon, Jun 29, 2020 at 1:18 AM Lester Caine  wrote:

> On 29/06/2020 01:10, Chris Albertson wrote:
> > I've been hunting and following up leads but I've not seen a complete
> free
> > CAM system.   Maybe Fusion's comes closest.
> >
> > A good project would be for someone to make a feature matrix.
>
> That would certainly be useful. I still use vCarve when I need a really
> quick set of gCode or engrave text and the v tool capabilities are not
> something one sees so much elsewhere? One of the few packages still
> sitting on the windows machine while my main desktop is linux.
>
> The ONE thing that would be nice is if FreeCAD could be extended on the
> fly. And it may be that this can already be done. So that additional
> path processes can be added between versions? 3D surfaces and vCarve as
> bolt in extras. It is essentially a scripting system running scripts so
> adding extra scripts should be easy?
>
> --
> Lester Caine - G8HFL
> -
> Contact - https://lsces.uk/wiki/Contact
> L.S.Caine Electronic Services - https://lsces.uk
> Model Engineers Digital Workshop - https://medw.uk
> Rainbow Digital Media - https://rainbowdigitalmedia.uk
>
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>


-- 

Chris Albertson
Redondo Beach, California

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[andy pugh]

On Mon, 29 Jun 2020 at 19:01, Chris Albertson  wrote:

> Onshape runs in a browser.  Fusion 360 is a native app for Windows and Mac.

You definitely could run Fusion 360 in a browser in 2017.

If I try to "open in web browser" one of my F360 models then I get
told I don't have the correct subscription type

https://forums.autodesk.com/t5/fusion-360-preview-functionality/browser-f360-getting-started/td-p/6932699

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[Chris Albertson]

Onshape runs in a browser.  Fusion 360 is a native app for Windows and Mac.
   You can run Onshape in Chrome on a Linux system.  To run Fusion360 on
Linux, you need to run it in a virtual machine with Windows.

If people have bought older PCs to run LinuxCNC, you do not want o run any
kind of CAD on those old clunkers.  CAD is the reason you buy a high-end PC
with good graphics and lots of RAM.   A 10-year-old PC will just spin the
pinwheel and foe you to wait if you ask it to do anything complex.  For CAD
work you want the same computer the kids want for their video games.

On Linux, your choices for CAD and other engineering software are very
limited almost none of the professional-level software runs on Linux.
Except for Onshape which runs on Chrome.

Surprisingly Onshape is very fast.  You might think that a browser-based 3D
CAD would be sluggish but Onshape on my Linux system is MUCH faster than
Fusion360 on my iMac.The comparison is slightly un-fair because my
Linux PC is a 16-core Xeon with 64GB RAM, and Nvidia GPU card while my iMac
is an older 4-core i5. But it is not unfair because this shows that
Onshape can take advantage of higher-end graphics and faster CPUs.

If you are running Linux, Onshape is the best thing out there in terms of
3D CAD.  But it lacks Fusion's CAM system.   Fusion has very good toolpath
generation with many options for roughing and finish work and toolpath
visualization.

It is possible to use a very much mixed workflow.I'm thinking that for
3D CAD Onshape might be my best option and then I move the part to Fusion
360 to generate a toolpath for milling or to Cura for slicing if the part
is to be printed.   The data stays on the file server so it is right there
on every computer.   I am much more famiar with Fusion than Onshape, but
I'm liking some of what Onshape does.  Onshape is much better data-handling
and version control than does Fusion but lacks Fusion's CAM features.  I
should be able to combine the best of each in my workflow.

Finally there is a computer in the shop that runs both LinuxCNC and
"Octoprint" and this computer is physically connected to both the milling
machine and to my 3D printer.  Surprisingly the computer has no problem at
all running a Mill and a printer at the same time and also steaming video
so I can monitor the printer from the office PCs or my iPhone.



On Mon, Jun 29, 2020 at 5:07 AM andy pugh  wrote:

> On Mon, 29 Jun 2020 at 02:16, Martin Dobbins  wrote:
>
> > Very cool, shame it doesn't run on Linux.
> >
>
> I think that you can run Fusion in a web browser, so that might be an
> option for Linux.
>
> I use Fusion a lot, but I hate myself for it.
>
> --
> atp
> "A motorcycle is a bicycle with a pandemonium attachment and is designed
> for the especial use of mechanical geniuses, daredevils and lunatics."
> — George Fitch, Atlanta Constitution Newspaper, 1912
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>


-- 

Chris Albertson
Redondo Beach, California

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[andy pugh]

On Mon, 29 Jun 2020 at 02:16, Martin Dobbins  wrote:

> Very cool, shame it doesn't run on Linux.
>

I think that you can run Fusion in a web browser, so that might be an
option for Linux.

I use Fusion a lot, but I hate myself for it.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is designed
for the especial use of mechanical geniuses, daredevils and lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[Lester Caine]

On 29/06/2020 01:10, Chris Albertson wrote:

I've been hunting and following up leads but I've not seen a complete free
CAM system.   Maybe Fusion's comes closest.

A good project would be for someone to make a feature matrix.


That would certainly be useful. I still use vCarve when I need a really 
quick set of gCode or engrave text and the v tool capabilities are not 
something one sees so much elsewhere? One of the few packages still 
sitting on the windows machine while my main desktop is linux.


The ONE thing that would be nice is if FreeCAD could be extended on the 
fly. And it may be that this can already be done. So that additional 
path processes can be added between versions? 3D surfaces and vCarve as 
bolt in extras. It is essentially a scripting system running scripts so 
adding extra scripts should be easy?


--
Lester Caine - G8HFL
-
Contact - https://lsces.uk/wiki/Contact
L.S.Caine Electronic Services - https://lsces.uk
Model Engineers Digital Workshop - https://medw.uk
Rainbow Digital Media - https://rainbowdigitalmedia.uk


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[Martin Dobbins]

Very cool, shame it doesn't run on Linux.

I'm pleased to say (kudos to the developers) that Freecad isn't any more 
difficult than that. It runs on Windows, Mac or Linux, so I think the people 
who wrote it had to do a lot more work than the people who wrote Fusion 360 and 
without a paycheck.  There's no nagware or promising you aren't using it for 
profit, either.

I just tested the latest version via Appimage and the loading times have 
reduced and the numerical boxes issue has gone.

Martin




From: Chris Albertson

Sorry   Left this off https://youtu.be/E0bhdr84FNU


On Sun, Jun 28, 2020 at 5:54 PM Chris Albertson 
wrote:

> All of the 3D CAD systems work nearly idetically to this.It is like
> this with modern text editors too.   You highlight the word then click
> "bold" and the word goes bold.   The world has pretty much standardized on
> how word processing works.
>
>
> The same is true with 3D CAD.Every system allows you to draw a
> constraint-based sketch then "extrude" it to a solid as in the video.
> Much of the terminology and icons are alike too.
>
> The old 2D CAD systems remind me of those old pre-standards word
> processors where we used to embed codes and have to memorize control
> characters.  That was all before Apple invented the current standard method
> that everyone now uses
>
> Likewise someone invented the current method for 3D and now "everyone" is
> doing the same thing.  In all systems.  First you select a plan and make a
> sketch.   Dimensions can be functions of other dimensions. then you move
> the 2D sketch along a path and creat a 3D shape.
>
> Later you can select a plane on the 2D shape to make a sketch that cuts or
> etendeds the objust
>
> Later to can add and substruct these thin=gs you made to make complex
> things
>
> What is different is the number of options and features.Oshape allows
> dimensions to come from a spreadsheet-like table and fusion the sketch is
> be moved on a spline and not just a line.  Some systems allow you to work
> with free-form objects so you could make a realistic animal shape.   They
> all work the same but the feature sets vary
>
> Also the quality if the instructional videos vary.The big-players
> (Autodesk, onshape and the like) hire profesional voice actors and
> production crews and offer instructor led paid classes with one on one
> feedback.  So ther is wide choise but they all are based on common
> ideas.   If you can learn one you can very quickly learn anotherone like it.
>
> Here is a video that shows making an Arduino enclusure in Fusion 360.
> Note how much it looks likethe FreeCAD video.  Well except the part being
> made is more complex.
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> On Sun, Jun 28, 2020 at 4:55 PM Gene Heskett  wrote:
>
>> On Sunday 28 June 2020 13:13:53 Martin Dobbins wrote:
>>
>> > Hi Gene,
>> >
>> > The app image I'm using (since the path workbench failed) is
>> > 0.18-16146.  It loads the path workbench fine and hasn't crashed yet,
>> > but I do have some niggles:
>> >
>> > It's slower than molasses to load.
>> > The numerical boxes it produces in response to a dimensioning request
>> > are squished and difficult to read.
>> >
>> > Not game changers, but still.
>> >
>> > I'm using this on Ubuntu 20.04  (it's just what I use at the "comfy"
>> > desktop).  I found the same things as you with repo versions, so I
>> > originally went with:
>> >
>> > https://wiki.freecadweb.org/Install_on_Unix
>> >
>> > adding the ppa to software sources started hosing my software updates,
>> > so that got removed.  It was stable apart from the path workbench
>> > (that could be just an Ubuntu thing you don't need to know about if
>> > you aren't running Ubuntu).  I wanted to use the path workbench, so
>> > this version had to go.
>> >
>> > I got the app image here:
>> >
>> > https://www.freecadweb.org/downloads.php
>> >
>> > I didn't grok freecad until I watched this:
>> >
>> > https://www.youtube.com/watch?v=gbNg3mzm84s
>> >
>> > Hope that helps?
>> >
>> Somewhat, the audio was quite low, hard to follow.
>> But he sure made it look like a piece of cake.
>>
>> Thanks.
>>
>> > Martin
>> >
>> >
>> >
>> >
>> >
>> >
>> > 
>> > From: Gene Heskett
>> >
>> > On Sunday 28 June 2020 10:26:38 N wrote:
>> > > > I thought I would post this for anyone that might step this way in
>> > > > future 
>> > > >
>> > > > Following discussions on freecad producing g-code, I've been
>> > > > experimenting.  The  workbench is where this all happens,
>> > > > but going to that location produced "libnglib.so: cannot open
>> > > > shared object file: No such file or directory"
>> > >
>> > > Draw a simple part the last week to test run machine, 2D +
>> > > extrusion. Generated g-code, had to add feed rate at beginning but
>> > > then it works. However had to dry run, real machine but have not
>> > > been able to get correct chuck yet.
>> > >
>> > > Read 

Re: [Emc-users] Freecad

[Chris Albertson]

Sorry   Left this off https://youtu.be/E0bhdr84FNU


On Sun, Jun 28, 2020 at 5:54 PM Chris Albertson 
wrote:

> All of the 3D CAD systems work nearly idetically to this.It is like
> this with modern text editors too.   You highlight the word then click
> "bold" and the word goes bold.   The world has pretty much standardized on
> how word processing works.
>
>
> The same is true with 3D CAD.Every system allows you to draw a
> constraint-based sketch then "extrude" it to a solid as in the video.
> Much of the terminology and icons are alike too.
>
> The old 2D CAD systems remind me of those old pre-standards word
> processors where we used to embed codes and have to memorize control
> characters.  That was all before Apple invented the current standard method
> that everyone now uses
>
> Likewise someone invented the current method for 3D and now "everyone" is
> doing the same thing.  In all systems.  First you select a plan and make a
> sketch.   Dimensions can be functions of other dimensions. then you move
> the 2D sketch along a path and creat a 3D shape.
>
> Later you can select a plane on the 2D shape to make a sketch that cuts or
> etendeds the objust
>
> Later to can add and substruct these thin=gs you made to make complex
> things
>
> What is different is the number of options and features.Oshape allows
> dimensions to come from a spreadsheet-like table and fusion the sketch is
> be moved on a spline and not just a line.  Some systems allow you to work
> with free-form objects so you could make a realistic animal shape.   They
> all work the same but the feature sets vary
>
> Also the quality if the instructional videos vary.The big-players
> (Autodesk, onshape and the like) hire profesional voice actors and
> production crews and offer instructor led paid classes with one on one
> feedback.  So ther is wide choise but they all are based on common
> ideas.   If you can learn one you can very quickly learn anotherone like it.
>
> Here is a video that shows making an Arduino enclusure in Fusion 360.
> Note how much it looks likethe FreeCAD video.  Well except the part being
> made is more complex.
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> On Sun, Jun 28, 2020 at 4:55 PM Gene Heskett  wrote:
>
>> On Sunday 28 June 2020 13:13:53 Martin Dobbins wrote:
>>
>> > Hi Gene,
>> >
>> > The app image I'm using (since the path workbench failed) is
>> > 0.18-16146.  It loads the path workbench fine and hasn't crashed yet,
>> > but I do have some niggles:
>> >
>> > It's slower than molasses to load.
>> > The numerical boxes it produces in response to a dimensioning request
>> > are squished and difficult to read.
>> >
>> > Not game changers, but still.
>> >
>> > I'm using this on Ubuntu 20.04  (it's just what I use at the "comfy"
>> > desktop).  I found the same things as you with repo versions, so I
>> > originally went with:
>> >
>> > https://wiki.freecadweb.org/Install_on_Unix
>> >
>> > adding the ppa to software sources started hosing my software updates,
>> > so that got removed.  It was stable apart from the path workbench
>> > (that could be just an Ubuntu thing you don't need to know about if
>> > you aren't running Ubuntu).  I wanted to use the path workbench, so
>> > this version had to go.
>> >
>> > I got the app image here:
>> >
>> > https://www.freecadweb.org/downloads.php
>> >
>> > I didn't grok freecad until I watched this:
>> >
>> > https://www.youtube.com/watch?v=gbNg3mzm84s
>> >
>> > Hope that helps?
>> >
>> Somewhat, the audio was quite low, hard to follow.
>> But he sure made it look like a piece of cake.
>>
>> Thanks.
>>
>> > Martin
>> >
>> >
>> >
>> >
>> >
>> >
>> > 
>> > From: Gene Heskett
>> >
>> > On Sunday 28 June 2020 10:26:38 N wrote:
>> > > > I thought I would post this for anyone that might step this way in
>> > > > future 
>> > > >
>> > > > Following discussions on freecad producing g-code, I've been
>> > > > experimenting.  The  workbench is where this all happens,
>> > > > but going to that location produced "libnglib.so: cannot open
>> > > > shared object file: No such file or directory"
>> > >
>> > > Draw a simple part the last week to test run machine, 2D +
>> > > extrusion. Generated g-code, had to add feed rate at beginning but
>> > > then it works. However had to dry run, real machine but have not
>> > > been able to get correct chuck yet.
>> > >
>> > > Read further down about crashes but have not had this problem, for
>> > > me it works fine.
>> >
>> > And where did you get this later and more stable release?  Whats in
>> > the repo's is neither late, nor stable.  I've wound up nuking the last
>> > 2 attempts to build it here.
>> >
>> > Your freecad version number please?
>> >
>> > > ___
>> > > Emc-users mailing list
>> > > Emc-users@lists.sourceforge.net
>> > > https://lists.sourceforge.net/lists/listinfo/emc-users
>> >
>> > Cheers, Gene Heskett
>> > --
>> > "There 

Re: [Emc-users] Freecad

[Chris Albertson]

All of the 3D CAD systems work nearly idetically to this.It is like
this with modern text editors too.   You highlight the word then click
"bold" and the word goes bold.   The world has pretty much standardized on
how word processing works.


The same is true with 3D CAD.Every system allows you to draw a
constraint-based sketch then "extrude" it to a solid as in the video.
Much of the terminology and icons are alike too.

The old 2D CAD systems remind me of those old pre-standards word processors
where we used to embed codes and have to memorize control characters.  That
was all before Apple invented the current standard method that everyone now
uses

Likewise someone invented the current method for 3D and now "everyone" is
doing the same thing.  In all systems.  First you select a plan and make a
sketch.   Dimensions can be functions of other dimensions. then you move
the 2D sketch along a path and creat a 3D shape.

Later you can select a plane on the 2D shape to make a sketch that cuts or
etendeds the objust

Later to can add and substruct these thin=gs you made to make complex things

What is different is the number of options and features.Oshape allows
dimensions to come from a spreadsheet-like table and fusion the sketch is
be moved on a spline and not just a line.  Some systems allow you to work
with free-form objects so you could make a realistic animal shape.   They
all work the same but the feature sets vary

Also the quality if the instructional videos vary.The big-players
(Autodesk, onshape and the like) hire profesional voice actors and
production crews and offer instructor led paid classes with one on one
feedback.  So ther is wide choise but they all are based on common
ideas.   If you can learn one you can very quickly learn anotherone like it.

Here is a video that shows making an Arduino enclusure in Fusion 360.
Note how much it looks likethe FreeCAD video.  Well except the part being
made is more complex.


























On Sun, Jun 28, 2020 at 4:55 PM Gene Heskett  wrote:

> On Sunday 28 June 2020 13:13:53 Martin Dobbins wrote:
>
> > Hi Gene,
> >
> > The app image I'm using (since the path workbench failed) is
> > 0.18-16146.  It loads the path workbench fine and hasn't crashed yet,
> > but I do have some niggles:
> >
> > It's slower than molasses to load.
> > The numerical boxes it produces in response to a dimensioning request
> > are squished and difficult to read.
> >
> > Not game changers, but still.
> >
> > I'm using this on Ubuntu 20.04  (it's just what I use at the "comfy"
> > desktop).  I found the same things as you with repo versions, so I
> > originally went with:
> >
> > https://wiki.freecadweb.org/Install_on_Unix
> >
> > adding the ppa to software sources started hosing my software updates,
> > so that got removed.  It was stable apart from the path workbench
> > (that could be just an Ubuntu thing you don't need to know about if
> > you aren't running Ubuntu).  I wanted to use the path workbench, so
> > this version had to go.
> >
> > I got the app image here:
> >
> > https://www.freecadweb.org/downloads.php
> >
> > I didn't grok freecad until I watched this:
> >
> > https://www.youtube.com/watch?v=gbNg3mzm84s
> >
> > Hope that helps?
> >
> Somewhat, the audio was quite low, hard to follow.
> But he sure made it look like a piece of cake.
>
> Thanks.
>
> > Martin
> >
> >
> >
> >
> >
> >
> > 
> > From: Gene Heskett
> >
> > On Sunday 28 June 2020 10:26:38 N wrote:
> > > > I thought I would post this for anyone that might step this way in
> > > > future 
> > > >
> > > > Following discussions on freecad producing g-code, I've been
> > > > experimenting.  The  workbench is where this all happens,
> > > > but going to that location produced "libnglib.so: cannot open
> > > > shared object file: No such file or directory"
> > >
> > > Draw a simple part the last week to test run machine, 2D +
> > > extrusion. Generated g-code, had to add feed rate at beginning but
> > > then it works. However had to dry run, real machine but have not
> > > been able to get correct chuck yet.
> > >
> > > Read further down about crashes but have not had this problem, for
> > > me it works fine.
> >
> > And where did you get this later and more stable release?  Whats in
> > the repo's is neither late, nor stable.  I've wound up nuking the last
> > 2 attempts to build it here.
> >
> > Your freecad version number please?
> >
> > > ___
> > > Emc-users mailing list
> > > Emc-users@lists.sourceforge.net
> > > https://lists.sourceforge.net/lists/listinfo/emc-users
> >
> > Cheers, Gene Heskett
> > --
> > "There are four boxes to be used in defense of liberty:
> >  soap, ballot, jury, and ammo. Please use in that order."
> > -Ed Howdershelt (Author)
> > If we desire respect for the law, we must first make the law
> > respectable. - Louis D. Brandeis
> > Genes Web page 

Re: [Emc-users] Freecad

[Chris Albertson]

On Sun, Jun 28, 2020 at 4:37 PM Ken Strauss  wrote:
>
> ..., does it implement only the most basic 2.5D
> toolpaths or are helical entry, canned cycles, peck drilling, HSM
toolpaths,
> etc available?

It does some of what you ask for but not all.  It handles drilling and ramp
entry and helical moves but to Quote from FreeCAD wiki...

> Limitations
> Most of the Path Tools are not true 3D tools but only 2.5D capable. This
> means that they take a fixed 2D shape and can cut it down to a given depth.
> There are two tools which produce true 3D paths, one of which is still
> experimental ( December 2019 ). There are currently no tools to face-mill a
> vertical face or to cut vertical non planar surfaces of a model.
>


I've been hunting and following up leads but I've not seen a complete free
CAM system.   Maybe Fusion's comes closest.

A good project would be for someone to make a feature matrix.



Chris Albertson
Redondo Beach, California

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[Gene Heskett]

On Sunday 28 June 2020 13:13:53 Martin Dobbins wrote:

> Hi Gene,
>
> The app image I'm using (since the path workbench failed) is
> 0.18-16146.  It loads the path workbench fine and hasn't crashed yet,
> but I do have some niggles:
>
> It's slower than molasses to load.
> The numerical boxes it produces in response to a dimensioning request
> are squished and difficult to read.
>
> Not game changers, but still.
>
> I'm using this on Ubuntu 20.04  (it's just what I use at the "comfy"
> desktop).  I found the same things as you with repo versions, so I
> originally went with:
>
> https://wiki.freecadweb.org/Install_on_Unix
>
> adding the ppa to software sources started hosing my software updates,
> so that got removed.  It was stable apart from the path workbench
> (that could be just an Ubuntu thing you don't need to know about if
> you aren't running Ubuntu).  I wanted to use the path workbench, so
> this version had to go.
>
> I got the app image here:
>
> https://www.freecadweb.org/downloads.php
>
> I didn't grok freecad until I watched this:
>
> https://www.youtube.com/watch?v=gbNg3mzm84s
>
> Hope that helps?
>
Somewhat, the audio was quite low, hard to follow.
But he sure made it look like a piece of cake.

Thanks.

> Martin
>
>
>
>
>
>
> 
> From: Gene Heskett
>
> On Sunday 28 June 2020 10:26:38 N wrote:
> > > I thought I would post this for anyone that might step this way in
> > > future 
> > >
> > > Following discussions on freecad producing g-code, I've been
> > > experimenting.  The  workbench is where this all happens,
> > > but going to that location produced "libnglib.so: cannot open
> > > shared object file: No such file or directory"
> >
> > Draw a simple part the last week to test run machine, 2D +
> > extrusion. Generated g-code, had to add feed rate at beginning but
> > then it works. However had to dry run, real machine but have not
> > been able to get correct chuck yet.
> >
> > Read further down about crashes but have not had this problem, for
> > me it works fine.
>
> And where did you get this later and more stable release?  Whats in
> the repo's is neither late, nor stable.  I've wound up nuking the last
> 2 attempts to build it here.
>
> Your freecad version number please?
>
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
> Cheers, Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> If we desire respect for the law, we must first make the law
> respectable. - Louis D. Brandeis
> Genes Web page 
>
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users


Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[Ken Strauss]

> -Original Message-
> From: Martin Dobbins [mailto:tu...@hotmail.com]
> Sent: Sunday, June 28, 2020 4:48 PM
> To: Enhanced Machine Controller (EMC)
> Subject: [Emc-users] Freecad
>
> Since the recent discussion about freecad, when I mentioned I am running a
>  older version from Appimage with some niggly issues, I have
come
> to realize that the development version of freecad is available from here:
>
> https://wiki.freecadweb.org/AppImage
>
> It is quite possible to run more than one version of the Appimage and I
have
> now downloaded 0.19-21775.
>
> I have yet to try this to compare with the existing.
>
> Martin

I hesitate to spend time installing and learning FreeCAD only to find that
it is not useful. Can anyone provide an assessment of the capabilities of
the gcode produced? For example, does it implement only the most basic 2.5D
toolpaths or are helical entry, canned cycles, peck drilling, HSM toolpaths,
etc available?




___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

[Emc-users] Freecad

[Martin Dobbins]

Since the recent discussion about freecad, when I mentioned I am running a 
 older version from Appimage with some niggly issues, I have come to 
realize that the development version of freecad is available from here:

https://wiki.freecadweb.org/AppImage

It is quite possible to run more than one version of the Appimage and I have 
now downloaded 0.19-21775.

I have yet to try this to compare with the existing.

Martin

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[Martin Dobbins]

Hi Gene,

The app image I'm using (since the path workbench failed) is 0.18-16146.  It 
loads the path workbench fine and hasn't crashed yet, but I do have some 
niggles:

It's slower than molasses to load.
The numerical boxes it produces in response to a dimensioning request are 
squished and difficult to read.

Not game changers, but still.

I'm using this on Ubuntu 20.04  (it's just what I use at the "comfy" desktop).  
I found the same things as you with repo versions, so I originally went with:

https://wiki.freecadweb.org/Install_on_Unix

adding the ppa to software sources started hosing my software updates, so that 
got removed.  It was stable apart from the path workbench (that could be just 
an Ubuntu thing you don't need to know about if you aren't running Ubuntu).  I 
wanted to use the path workbench, so this version had to go.

I got the app image here:

https://www.freecadweb.org/downloads.php

I didn't grok freecad until I watched this:

https://www.youtube.com/watch?v=gbNg3mzm84s

Hope that helps?

Martin







From: Gene Heskett

On Sunday 28 June 2020 10:26:38 N wrote:

> > I thought I would post this for anyone that might step this way in
> > future 
> >
> > Following discussions on freecad producing g-code, I've been
> > experimenting.  The  workbench is where this all happens, but
> > going to that location produced "libnglib.so: cannot open shared
> > object file: No such file or directory"
>
> Draw a simple part the last week to test run machine, 2D + extrusion.
> Generated g-code, had to add feed rate at beginning but then it works.
> However had to dry run, real machine but have not been able to get
> correct chuck yet.
>
> Read further down about crashes but have not had this problem, for me
> it works fine.
>
And where did you get this later and more stable release?  Whats in the
repo's is neither late, nor stable.  I've wound up nuking the last 2
attempts to build it here.

Your freecad version number please?
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users


Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[Lester Caine]

On 28/06/2020 16:21, Gene Heskett wrote:

Your freecad version number please?


Personally I have 0.18.4-6.5 currently, and all the parts I've machined 
via Freecad have been on the 0.18 base. 3 axis Path was added in 0.18 
and in theory 4 axis version will be part of 0.19. Although not sure 
when that may appear?


Freecad is somewhat quirky when one has been brought up on Autocad style 
drawing packages. I still drop back to Turbocad for a quick set of 
profiles, but using the Sketcher Workbench is getting easier. It does 
not work well pulling dxf profiles into sketcher simply because the 
relations between lines are not easy to guess, however it can be a quick 
route once one gets more used to manually adding those relations. 
Sketcher from scratch does seem a little faster when conventional 
drafting needs a lot of construction lines ... relations mechanise that 
process nicely.


--
Lester Caine - G8HFL
-
Contact - https://lsces.uk/wiki/Contact
L.S.Caine Electronic Services - https://lsces.uk
Model Engineers Digital Workshop - https://medw.uk
Rainbow Digital Media - https://rainbowdigitalmedia.uk


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[Gene Heskett]

On Sunday 28 June 2020 10:26:38 N wrote:

> > I thought I would post this for anyone that might step this way in
> > future 
> >
> > Following discussions on freecad producing g-code, I've been
> > experimenting.  The  workbench is where this all happens, but
> > going to that location produced "libnglib.so: cannot open shared
> > object file: No such file or directory"
>
> Draw a simple part the last week to test run machine, 2D + extrusion.
> Generated g-code, had to add feed rate at beginning but then it works.
> However had to dry run, real machine but have not been able to get
> correct chuck yet.
>
> Read further down about crashes but have not had this problem, for me
> it works fine.
>
And where did you get this later and more stable release?  Whats in the 
repo's is neither late, nor stable.  I've wound up nuking the last 2 
attempts to build it here.

Your freecad version number please?
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users


Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
If we desire respect for the law, we must first make the law respectable.
 - Louis D. Brandeis
Genes Web page 


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[N]

> I thought I would post this for anyone that might step this way in future 
> 
> Following discussions on freecad producing g-code, I've been experimenting.  
> The  workbench is where this all happens, but going to that location 
> produced "libnglib.so: cannot open shared object file: No such file or 
> directory"

Draw a simple part the last week to test run machine, 2D + extrusion. Generated 
g-code, had to add feed rate at beginning but then it works. However had to dry 
run, real machine but have not been able to get correct chuck yet.

Read further down about crashes but have not had this problem, for me it works 
fine.


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[Mark]

On 6/27/20 14:23, Chris Albertson wrote:


This is one big reason I recommend people use either Onshape of Fusion 360
-- Stability and a fully built out feature set.I'm a fan of Open Source
software but not when there is a better free solution.   I recommend the
above because most users are not technically proficient enough to solve
issues with dependency and crashes while Onshape "just works" on any
computer and Fusion "just works" on a Mac or Windows system.

Eventually, there might emerge an open-source CAD that is actually better
than any of the others.   Not just free, but actually better.   This
already happened with PCB design CAD.  KiCAD took off some years ago and is
a leader now.   But this has not happened yet with general 3D CAD.

Unless you want to spend time tinkering with Wine or messing with a 
virtual sandbox, Fusion 360 is not available for Linux.


Mark



___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[Chris Albertson]

This is one big reason I recommend people use either Onshape of Fusion 360
-- Stability and a fully built out feature set.I'm a fan of Open Source
software but not when there is a better free solution.   I recommend the
above because most users are not technically proficient enough to solve
issues with dependency and crashes while Onshape "just works" on any
computer and Fusion "just works" on a Mac or Windows system.

Eventually, there might emerge an open-source CAD that is actually better
than any of the others.   Not just free, but actually better.   This
already happened with PCB design CAD.  KiCAD took off some years ago and is
a leader now.   But this has not happened yet with general 3D CAD.

On Sat, Jun 27, 2020 at 11:06 AM Billy Huddleston  wrote:

> Funny.. I *JUST* found this issue..
>
> sudo apt install netgen
> sudo ln -s /usr/lib/x86_64-linux-gnu/netgen/* /usr/lib/x86_64-linux-gnu/
>
> Should get it to work.. however, I've had FreeCAD crash 3 times in the
> past 15 minutes trying to use the Path workbench.
>
> I'm going to try the appimage to see if it's any more stable.
>
>
> Thanks, Billy
>
>
> On 6/27/20 1:39 PM, Martin Dobbins wrote:
> > I thought I would post this for anyone that might step this way in
> future 
> >
> > Following discussions on freecad producing g-code, I've been
> experimenting.  The  workbench is where this all happens, but going
> to that location produced "libnglib.so: cannot open shared object file: No
> such file or directory"
> >
> > A little research revealed that I had made some errors.  This is a dual
> boot machine and I had to reinstall Ubuntu following a Microsoft update
> that managed to hose its own MBR, go figure (!).  The only install I had on
> USB was 18.04 which I then upgraded to 20.04 , I then reinstalled freecad.
>  This was somehow the wrong path to take, producing missing dependencies
> etc. and (maybe) causing the error with freecad.   I found that freecad
> also has an app image, so I downloaded that and gave it permission to run
> as a program.  This produces a freecad that .
> >
> > Great, so now I can proceed, let's uninstall freecad and just run it
> from the app image.  "apt-get remove --auto-remove freecad" produces
> "Package 'freecad' is not installed, so not removed".   Yet I still have a
> freecad install that I can get to by typing freecad in a terminal or
> selecting it from the "applications" gui, this is the package that has
> unmet dependencies.  I can work around this by using the app image, but I
> would like to hose all previous traces of the existing install to prevent
> (human) errors in the future.
> >
> > Martin
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
> --
> Billy Huddleston Inner Vision
>
> *William Huddleston
> Inner Vision Development*
> Office: 865.560.2752
> Fax: 865.560.2703
>
> http://www.ivdc.com
> *Development and Consulting... Simplified.*
>
>  <
> http://twitter.com/ivdc> 
>
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>


-- 

Chris Albertson
Redondo Beach, California

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[Martin Dobbins]

Thanks Chris,

That worked

Martin



From: Chris Albertson

Figure out where the old install place FreeCAD.  Type "which freecad" and
the you see the full path to the program.   Then just deleter is using "rm".

If you have some kind of desktop shortcut to the old freecad you just
deleted then edit them to point to the appimage.

On Sat, Jun 27, 2020 at 10:43 AM Martin Dobbins  wrote:

> I thought I would post this for anyone that might step this way in future
> 
>
> Following discussions on freecad producing g-code, I've been
> experimenting.  The  workbench is where this all happens, but going
> to that location produced "libnglib.so: cannot open shared object file: No
> such file or directory"
>
> A little research revealed that I had made some errors.  This is a dual
> boot machine and I had to reinstall Ubuntu following a Microsoft update
> that managed to hose its own MBR, go figure (!).  The only install I had on
> USB was 18.04 which I then upgraded to 20.04 , I then reinstalled freecad.
>  This was somehow the wrong path to take, producing missing dependencies
> etc. and (maybe) causing the error with freecad.   I found that freecad
> also has an app image, so I downloaded that and gave it permission to run
> as a program.  This produces a freecad that .
>
> Great, so now I can proceed, let's uninstall freecad and just run it from
> the app image.  "apt-get remove --auto-remove freecad" produces "Package
> 'freecad' is not installed, so not removed".   Yet I still have a freecad
> install that I can get to by typing freecad in a terminal or selecting it
> from the "applications" gui, this is the package that has unmet
> dependencies.  I can work around this by using the app image, but I would
> like to hose all previous traces of the existing install to prevent (human)
> errors in the future.
>
> Martin
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>


--

Chris Albertson
Redondo Beach, California

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[Billy Huddleston]

Funny.. I *JUST* found this issue..

sudo apt install netgen
sudo ln -s /usr/lib/x86_64-linux-gnu/netgen/* /usr/lib/x86_64-linux-gnu/

Should get it to work.. however, I've had FreeCAD crash 3 times in the past 15 
minutes trying to use the Path workbench.

I'm going to try the appimage to see if it's any more stable.


Thanks, Billy


On 6/27/20 1:39 PM, Martin Dobbins wrote:

I thought I would post this for anyone that might step this way in future 

Following discussions on freecad producing g-code, I've been experimenting.  The  
workbench is where this all happens, but going to that location produced "libnglib.so: 
cannot open shared object file: No such file or directory"

A little research revealed that I had made some errors.  This is a dual boot machine 
and I had to reinstall Ubuntu following a Microsoft update that managed to hose its 
own MBR, go figure (!).  The only install I had on USB was 18.04 which I then 
upgraded to 20.04 , I then reinstalled freecad.   This was somehow the wrong path to 
take, producing missing dependencies etc. and (maybe) causing the error with freecad. 
  I found that freecad  also has an app image, so I downloaded that and gave it 
permission to run as a program.  This produces a freecad that .

Great, so now I can proceed, let's uninstall freecad and just run it from the app image.  "apt-get 
remove --auto-remove freecad" produces "Package 'freecad' is not installed, so not removed".   
Yet I still have a freecad install that I can get to by typing freecad in a terminal or selecting it from the 
"applications" gui, this is the package that has unmet dependencies.  I can work around this by 
using the app image, but I would like to hose all previous traces of the existing install to prevent (human) 
errors in the future.

Martin

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

--
Billy Huddleston Inner Vision

*William Huddleston
Inner Vision Development*
Office: 865.560.2752
Fax: 865.560.2703

http://www.ivdc.com
*Development and Consulting... Simplified.*

 
 


___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

Re: [Emc-users] Freecad

[Chris Albertson]

Figure out where the old install place FreeCAD.  Type "which freecad" and
the you see the full path to the program.   Then just deleter is using "rm".

If you have some kind of desktop shortcut to the old freecad you just
deleted then edit them to point to the appimage.

On Sat, Jun 27, 2020 at 10:43 AM Martin Dobbins  wrote:

> I thought I would post this for anyone that might step this way in future
> 
>
> Following discussions on freecad producing g-code, I've been
> experimenting.  The  workbench is where this all happens, but going
> to that location produced "libnglib.so: cannot open shared object file: No
> such file or directory"
>
> A little research revealed that I had made some errors.  This is a dual
> boot machine and I had to reinstall Ubuntu following a Microsoft update
> that managed to hose its own MBR, go figure (!).  The only install I had on
> USB was 18.04 which I then upgraded to 20.04 , I then reinstalled freecad.
>  This was somehow the wrong path to take, producing missing dependencies
> etc. and (maybe) causing the error with freecad.   I found that freecad
> also has an app image, so I downloaded that and gave it permission to run
> as a program.  This produces a freecad that .
>
> Great, so now I can proceed, let's uninstall freecad and just run it from
> the app image.  "apt-get remove --auto-remove freecad" produces "Package
> 'freecad' is not installed, so not removed".   Yet I still have a freecad
> install that I can get to by typing freecad in a terminal or selecting it
> from the "applications" gui, this is the package that has unmet
> dependencies.  I can work around this by using the app image, but I would
> like to hose all previous traces of the existing install to prevent (human)
> errors in the future.
>
> Martin
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
>


-- 

Chris Albertson
Redondo Beach, California

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

[Emc-users] Freecad

[Martin Dobbins]

I thought I would post this for anyone that might step this way in future 

Following discussions on freecad producing g-code, I've been experimenting.  
The  workbench is where this all happens, but going to that location 
produced "libnglib.so: cannot open shared object file: No such file or 
directory"

A little research revealed that I had made some errors.  This is a dual boot 
machine and I had to reinstall Ubuntu following a Microsoft update that managed 
to hose its own MBR, go figure (!).  The only install I had on USB was 18.04 
which I then upgraded to 20.04 , I then reinstalled freecad.   This was somehow 
the wrong path to take, producing missing dependencies etc. and (maybe) causing 
the error with freecad.   I found that freecad  also has an app image, so I 
downloaded that and gave it permission to run as a program.  This produces a 
freecad that .

Great, so now I can proceed, let's uninstall freecad and just run it from the 
app image.  "apt-get remove --auto-remove freecad" produces "Package 'freecad' 
is not installed, so not removed".   Yet I still have a freecad install that I 
can get to by typing freecad in a terminal or selecting it from the 
"applications" gui, this is the package that has unmet dependencies.  I can 
work around this by using the app image, but I would like to hose all previous 
traces of the existing install to prevent (human) errors in the future.

Martin

___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users

[Emc-users] Freecad info for Gene and any one else that may find it useful

[linden]

quick Freecad notes


There is a ppa with packages for stable and daily versions here toward 
the bottom of the page.

https://freecadweb.org/wiki/Download.


There is a PDF/wicki book here explaining the basic principles and how 
to use it here:

https://www.gitbook.com/book/yorikvanhavre/a-freecad-manual/details


It is very much bata software and evolving quickly there is a lot of 
work being done especial with the Path work bench (cam) with changes 
happening almost daily in the daily build.

There is almost no activity on the mailing list every thing happens on 
the forum:

https://forum.freecadweb.org/

I seem to use the part design work bench to make almost all my models. 
Once i got my head rapped around constraining sketches and it is better 
to make several small sketches rather than one big one it just clicked.

here are some good tutorials

English
https://www.youtube.com/channel/UC_9HwDkwxllq5lFGkYBIH9g

Deutsch
https://www.youtube.com/playlist?list=PLsrwVwvqYb8G4Ri0iz1JIebsOXkgoytAY

hope this is of use to some of you

linden

PS there is a user show case here where you can see what people have 
done with it. Some really impressive stuff

https://forum.freecadweb.org/viewforum.php?f=24


--
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users