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


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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



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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.  
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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  
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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


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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.





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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


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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.
>


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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



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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 


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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

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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 


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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
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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


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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


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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


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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 


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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 
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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  
> ___
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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  
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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




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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
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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






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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
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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

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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 


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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


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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 


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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


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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 


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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

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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 


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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


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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

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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


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