[Emc-users] just noticed on Hackaday --- new free 3D CAD program almost here

2013-09-14 Thread Kent Reed
Gentle persons:

Take a gander at
http://hackaday.com/2013/09/13/designspark-mechanical-the-gift-of-invention/

looks like SketchUp may get a run for its money.

Regards,
Kent

PS - I pointed you at Hackaday rather at DesignSpark directly in order to
give credit where credit is due
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Re: [Emc-users] just noticed on Hackaday --- new free 3D CAD program almost here

2013-09-14 Thread Gene Heskett
On Saturday 14 September 2013 09:49:31 Kent Reed did opine:

 Gentle persons:
 
 Take a gander at
 http://hackaday.com/2013/09/13/designspark-mechanical-the-gift-of-invent
 ion/
 
 looks like SketchUp may get a run for its money.
 
 Regards,
 Kent

That will not be that hard.  Sketchup seems far more of an architectural 
aid than anything else.  Maybe I'm getting too slow in my dotage, but the 
interface in Sketchup is not the least bit intuitive to me.  I tried to do 
a piece of furniture, spent 2 or 3 days on it, restarted from scratch about 
every 30 minutes many times, but gave up when I couldn't find a way to make 
all the cross braces the same length.  Screen motions are so gross I 
couldn't match within 1/4.  And the undo sucks dead toads thru soda 
straws. 5 levels I think.  That will not get you through the first stick.

I assume we'll even have prices on the parts library after Monday?
 
 PS - I pointed you at Hackaday rather at DesignSpark directly in order
 to give credit where credit is due
 
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Cheers, Gene
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Re: [Emc-users] just noticed on Hackaday --- new free 3D CAD program almost here

2013-09-14 Thread Kent Reed
Trying to head off the inevitable flurry of followup messages, I should
note that DesignSpark says

*Operating Systems:*
Microsoft® Windows XP with Service Pack 3
Microsoft® Windows Vista™
Microsoft® Windows 7
Microsoft® Windows 8
DesignSpark Mechanical is not supported on virtual platforms.

I don't know if is not supported means it won't work or just we don't
care enough to test.

I use Windows when I must and Unix/Linux when I can so this is not a
problem for me but I know it will be for others. So be it.

In any case, I have to wait a couple days to find out if the product merits
adding to my portfolio.

Regards,
Kent



On Sat, Sep 14, 2013 at 9:58 AM, Gene Heskett ghesk...@wdtv.com wrote:

 On Saturday 14 September 2013 09:49:31 Kent Reed did opine:

  Gentle persons:
 
  Take a gander at
  http://hackaday.com/2013/09/13/designspark-mechanical-the-gift-of-invent
  ion/
 
  looks like SketchUp may get a run for its money.
 
  Regards,
  Kent

 That will not be that hard.  Sketchup seems far more of an architectural
 aid than anything else.  Maybe I'm getting too slow in my dotage, but the
 interface in Sketchup is not the least bit intuitive to me.  I tried to do
 a piece of furniture, spent 2 or 3 days on it, restarted from scratch about
 every 30 minutes many times, but gave up when I couldn't find a way to make
 all the cross braces the same length.  Screen motions are so gross I
 couldn't match within 1/4.  And the undo sucks dead toads thru soda
 straws. 5 levels I think.  That will not get you through the first stick.

 I assume we'll even have prices on the parts library after Monday?

  PS - I pointed you at Hackaday rather at DesignSpark directly in order
  to give credit where credit is due
  
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 Cheers, Gene
 --
 There are four boxes to be used in defense of liberty:
  soap, ballot, jury, and ammo. Please use in that order.
 -Ed Howdershelt (Author)
 My web page: http://gene.homelinux.net:6309/gene should be up!

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 my body.  Then I realized who was telling me this.
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 dangerous than 200 million guns in the hands of
  law-abiding citizens.


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Re: [Emc-users] just noticed on Hackaday --- new free 3D CAD program almost here

2013-09-14 Thread andy pugh
On 14 September 2013 13:21, Kent Reed kentallanr...@gmail.com wrote:

 http://hackaday.com/2013/09/13/designspark-mechanical-the-gift-of-invention/

I have been using the Designspark PCB design software for a few years
and it is pretty good.

-- 
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http://www.ifixit.com/Manifesto

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Re: [Emc-users] just noticed on Hackaday --- new free 3D CAD program almost here

2013-09-14 Thread Gene Heskett
On Saturday 14 September 2013 10:24:55 Kent Reed did opine:

 Trying to head off the inevitable flurry of followup messages, I should
 note that DesignSpark says
 
 *Operating Systems:*
 Microsoft® Windows XP with Service Pack 3
 Microsoft® Windows Vista™
 Microsoft® Windows 7
 Microsoft® Windows 8
 DesignSpark Mechanical is not supported on virtual platforms.
 
 I don't know if is not supported means it won't work or just we
 don't care enough to test.
 
 I use Windows when I must and Unix/Linux when I can so this is not a
 problem for me but I know it will be for others. So be it.
 
 In any case, I have to wait a couple days to find out if the product
 merits adding to my portfolio.
 
 Regards,
 Kent
 
That's a bummer. There are no windoze machines on the premises here.

That leaves freecad, with a mile high vertical climb to use it because the 
docs aren't.  Pretty eye candy yes.  Tell you how, no.  But what really un-
impresses me about it is that after all this time (3-4 years now) that Dan 
Heeks has been putting his coding output into freecad, pulling HeeksCNC 
seems to not even be on his radar screen.  Bottom line is that I can lay it 
out on paper, and write the gcode to do the admittedly simple stuff I can 
imagine, and make it, long before I have succeeded in making even a 
wireframe of whats in my head.

I just updated to the last incremental release, built yesterday and the 
single most annoying missing feature to using its builtin browser to look 
at the docs, is that 2 years progress at what looks to be a fairly capable 
program, it STILL doesn't have a back button!  By the time I have started 
a project, and would like to follow along one of the demo's by using the 
docs as a tutorial, the only way to get back to your project is to quit 
freecad, restart it, and reload your project.  By then, getting back to the 
step you were on, and what the docs said have both been forgotten.

Hello, anybody home? I can see the lights are on.

There is a link to printable docs that are not unless you want to do 1 to 
3 pages at a time, of a subject that probably needs a ream of double sided 
paper.  But those docs are a version behind, 0.13 is most of 2 years old 
now, and yesterdays build claims to be 0.14.

So the close button gets clicked again, having wasted an hour without 
accomplishing a thing.

And I have several eagle src'ed pcb's to make, accessory  upgrade stuff 
for the coco's, starting with a larger pallet to hold the boards, and while 
Highland Hardware in Hotlanta still has the raw micarta to make them with, 
but compared to 2 or 3 years ago's product, this stuff is crap.  No formica 
like facing at all, cold flows measurably.  You can see it on a dial 
indicator 1/2 from a hold down clamp.

Cheers, Gene
-- 
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 soap, ballot, jury, and ammo. Please use in that order.
-Ed Howdershelt (Author)
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Re: [Emc-users] just noticed on Hackaday --- new free 3D CAD program almost here

2013-09-14 Thread Marius Liebenberg
Same here, so I will be very interested in having a good look at the 
mechanical package.

On 2013/09/14 05:13 PM, andy pugh wrote:
 On 14 September 2013 13:21, Kent Reed kentallanr...@gmail.com wrote:

 http://hackaday.com/2013/09/13/designspark-mechanical-the-gift-of-invention/
 I have been using the Designspark PCB design software for a few years
 and it is pretty good.


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Re: [Emc-users] Displaying a variable in the Axis Custom Panel

2013-09-14 Thread andy pugh
On 14 September 2013 01:53, Cecil Thomas wctho...@chartertn.net wrote:

 The default lathe setup has only 2 axes.  It is not obvious to me how
 to add the third axis for the speed knob.  Can I add the third axis
 in the .ini file without messing up anything

Something I forgot to say last night is that your spindle-control
stepper motor wouldn't be an Axis.
You can connect stepgens to arbitrary HAL signals, not just to axis
position commands.

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Re: [Emc-users] just noticed on Hackaday --- new free 3D CAD program almost here

2013-09-14 Thread Gregg Eshelman
On Sat, 9/14/13, Kent Reed kentallanr...@gmail.com wrote:

 Subject: [Emc-users] just noticed on Hackaday --- new free 3D CAD program 
almost here
 To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
 Date: Saturday, September 14, 2013, 6:21 AM
 
 Gentle persons:
 
 Take a gander at
 http://hackaday.com/2013/09/13/designspark-mechanical-the-gift-of-invention/
 
 looks like SketchUp may get a run for its money.
 
 Regards,
 Kent
 
I'm going to download it.

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Re: [Emc-users] BeagleBone Image Available

2013-09-14 Thread John Prentice (FS)
Greetings

 

I have run a real machine and made chips with the BBB and MachineKit
package. And very impressive and promising it is even with a 750 kB
engraving job. Trying to get beyond the basic integration shows my poor
Linux fundamentals :=(

 

(a) Having used the bootable SD card I can remove it and boot the original
system from the BBB eMMC but other SD cards will not show up under it in  a
df listing. I wanted to make a new bootable SD to work on while also
retaining the known simple configuration that works. Is this change to
original system behaviour expected and if so how is it reversible?

 

(b) I am bemused at where the magic numbers connected to steppin and dirpin
in HAL come from (e.g. the comment the actual pin used and 0x4c make no
sense to me:

 

#P8.43 PRU1.out2 

setp blah blah .stepgen.00.steppin 0x4c

 

I have looked for a pattern with this BeBoPrBr example and all the tables
including considering the 0x800 bit and the excess 32 coding for PRUs but
cannot see any pattern. I want to add another stepgen to drive the machine
spindle. The B axis seems in place in the .dts file but what goes in the
HAL?

 

(c) Straight Linux problem: I cannot work out how to Mount USB sticks in the
running system under XFCE/Thunar except logged in as root. Thunar says Not
Permitted and unlike under Gnome you cannot run things like Thunar or medit
with sudo from a Terminal. Google was not my friend on this occasion giving
lots of recipes in fstab but no explanation of principles.

 

(d) Similarly I can only shutdown/restart Linux by logging out of linuxcnc
and logging in a root as the buttons are greyed out when user linuxcnc.

 

(e)  finally and this may be a step too brave at present, I wonder if anyone
has tries/succeeded to run the filesystem off a USB drive (probably a
harddrive) using pivot root. The hope was to get better performance,
particularly in development systems as I would like to install some user
Comps.

 

Thanks in anticipation

 

John Prentice

 

 

 

 

 

-Original Message-
From: Charles Steinkuehler [mailto:char...@steinkuehler.net] 
Sent: 02 September 2013 23:39
To: EMC2-Users-List
Subject: [Emc-users] BeagleBone Image Available

 

I have a new version of the MachineKit image for running LinuxCNC on a
BeagleBone available:

 

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Re: [Emc-users] BeagleBone Image Available

2013-09-14 Thread Charles Steinkuehler
On 9/14/2013 3:58 PM, John Prentice (FS) wrote:
 Greetings
 
 I have run a real machine and made chips with the BBB and MachineKit
 package. And very impressive and promising it is even with a 750 kB
 engraving job. Trying to get beyond the basic integration shows my poor
 Linux fundamentals :=(

Video or it didn't happen!!!  I want to link to a YouTube video of a BBB
cutting chips on my blog! :)

 (a) Having used the bootable SD card I can remove it and boot the original
 system from the BBB eMMC but other SD cards will not show up under it in  a
 df listing. I wanted to make a new bootable SD to work on while also
 retaining the known simple configuration that works. Is this change to
 original system behaviour expected and if so how is it reversible?

You are probably hitting a software issue with the BeagleBone kernel
which generally doesn't like to recognize the SD card if you've booted
off the on-board eMMC.  IIRC there are some patches that went by on the
mailing list recently (BeagleBoard device-tree updates on the Linux-OMAP
list) so perhaps this will be fixed soon.  In the meantime, if you want
to use an SD card when booting from the on-board flash, you need to use
a USB card reader, not the on-board uSD slot.  :(

 (b) I am bemused at where the magic numbers connected to steppin and dirpin
 in HAL come from (e.g. the comment the actual pin used and 0x4c make no
 sense to me:
 
 #P8.43 PRU1.out2 

P8.43 is pin 43 on the P8 header of the BeagleBone.

 setp blah blah .stepgen.00.steppin 0x4c

0x4c is the kernel GPIO Pin numbering scheme + 32 (so that zero means
don't twiddle any actual pins).  In this case:

0x4C = 76 (dec) = (32 * 2) + 12 = GPIO bank 1, bit 12

 I have looked for a pattern with this BeBoPrBr example and all the tables
 including considering the 0x800 bit and the excess 32 coding for PRUs but
 cannot see any pattern. I want to add another stepgen to drive the machine
 spindle. The B axis seems in place in the .dts file but what goes in the
 HAL?

None of the existing configurations support more than 4 axis, but the
BeBoPr with a bridge does have step/dir lines for a B axis.  In HAL, you
need to add another step/dir generator to the pru_generic component
(num_stepgens=5 in the ini file), then map it's I/O signals using the
kernel GPIO number + 32 convention.  Other than the I/O lines, the rest
of the signals are fairly standard for LinuxCNC (ie: commanded position
 feedback).

The HAL values should be:

B_Dir = GPIO bank 0, bit 5 = 32 + 5 = 37
B_Stp = GPIO bank 0, bit 4 = 32 + 4 = 36

You will also need to remove these pins from the hal_bb_gpio driver
(remove the 217 and 218 entries from output_pins) so the PRU and the
GPIO driver don't try to control the same I/O pins.

 (c) Straight Linux problem: I cannot work out how to Mount USB sticks in the
 running system under XFCE/Thunar except logged in as root. Thunar says Not
 Permitted and unlike under Gnome you cannot run things like Thunar or medit
 with sudo from a Terminal. Google was not my friend on this occasion giving
 lots of recipes in fstab but no explanation of principles.

Use sudo mount /dev/sdx /mnt/wherever at the command line.

 (d) Similarly I can only shutdown/restart Linux by logging out of linuxcnc
 and logging in a root as the buttons are greyed out when user linuxcnc.

sudo halt

 (e)  finally and this may be a step too brave at present, I wonder if anyone
 has tries/succeeded to run the filesystem off a USB drive (probably a
 harddrive) using pivot root. The hope was to get better performance,
 particularly in development systems as I would like to install some user
 Comps.

I believe Robert Nelson (who wrote the scripts I use to build the kernel
and the images) uses a USB HDD on his build systems, but I'm not sure if
those are BBB's or something else (like BeagleBoards).  There are a
variety of USB issues with the BeagleBone and the 3.8 kernel, so I'd be
careful if you want to go this route (ie: make frequent backups).

When I am worried about size and speed, I have used remote NFS mounts
with excellent results.  This also keeps the data on a real system (in
my case, a SAN back-end with hardware RAID) instead of a single disk
attached to the 'bone.

Holler with any other questions!

-- 
Charles Steinkuehler
char...@steinkuehler.net



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[Emc-users] Anyone wants a Leblond Makino CNC lathe

2013-09-14 Thread Igor Chudov
25 inches swing, 39 inches between centers. Has an old Fanuc GN6 controller
and, most likely, DC servo motors. Weighs appx. 10k lbs.

Running condition is UNKNOWN, since I do not have it yet. But I want to put
this ad out now, because I will not have any time to market it. It is
either sell right away, or I part it out and scrap as soon as I get it,
which is what I normally do.

Price $3k loaded no your truck, $4,200 delivered near Chicago. Weighs appx.
10k lbs.

Time is of the essence. I will be picking it up next week.

i
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Re: [Emc-users] just noticed on Hackaday --- new free 3D CAD program almost here

2013-09-14 Thread Ron Bean
DesignSpark Mechanical is not supported on virtual platforms.

I don't know if is not supported means it won't work or just we don't
care enough to test.

That's probably because virtual machines don't give you access to the 
video hardware, which 3D CAD programs rely on for usable speed. Instead 
you get some kind of software emulation of a video card, which is *much*
slower for anything that's graphics-intensive.

There is a newer virtualization technology that can give a virtual 
machine access to the video hardware, but from what I've heard it's not 
easy to implement correctly, and some motherboards don't do it right. So 
even if a motherboard claims to support it, it might not.

OK, this is what I was thinking of:
http://en.wikipedia.org/wiki/IOMMU

I wondered if DesignSpark was cloud-based, just because all the recent 
closed-source freeware seems to be built on that model. Does anyone 
know if it will work without an internet connection? (I guess we'll find 
out on Monday.)

Someone told me that he'd tried a recent version of FreeCAD and it 
seemed to work pretty well. I'm not sure how he managed to use it 
without documentation...

There's also something called solvespace which is kind of interesting, 
it has some limitations but I know a couple of people who use it (it's 
also Windows-only).


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Re: [Emc-users] Anyone wants a Leblond Makino CNC lathe

2013-09-14 Thread Gregg Eshelman
On Sat, 9/14/13, Igor Chudov ichu...@gmail.com wrote:

 Subject: [Emc-users] Anyone wants a Leblond Makino CNC lathe
 To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net
 Date: Saturday, September 14, 2013, 3:30 PM
 
 25 inches swing, 39 inches between centers. Has an old Fanuc GN6 controller
 and, most likely, DC servo motors. Weighs appx. 10k lbs.
-

Try posting it here http://www.practicalmachinist.com/vb/machinery-sale-wanted/ 
and here http://www.cnczone.com/forums/used_machines_forum/

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