Re: [Emc-users] Intel DN2800MT - possible new LinuxCNC star?

2012-07-17 Thread Lester Caine
Andrew wrote:
 I just ran into Intel DN2800MT mini-ITX motherboard.

 Anyone tested the latency?

Anybody ACTUALLY using this board with Linux? I picked one up to test out, but 
the reports about problems with the video site are quite correct. It's unusable 
:(
Would seem that it IS only usable with windows currently ...
Fortunately  there are other boards available that still use the older graphic 
chipsets, but the ITX boards are becoming a minefield!

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Re: [Emc-users] Intel DN2800MT - possible new LinuxCNC star?

2012-07-17 Thread andy pugh
On 17 July 2012 07:28, Lester Caine les...@lsces.co.uk wrote:

 Anybody ACTUALLY using this board with Linux? I picked one up to test out, but
 the reports about problems with the video site are quite correct. It's 
 unusable :(

Yes, I am using it as my LinuxCNC development machine.
What video problems are you having? I just did a simple LiveCD install
of LinuxCNC 2.5, and it works fine.

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Re: [Emc-users] Intel DN2800MT - possible new LinuxCNC star?

2012-07-17 Thread Lester Caine
andy pugh wrote:
 Anybody ACTUALLY using this board with Linux? I picked one up to test out, 
 but
 the reports about problems with the video site are quite correct. It's 
 unusable:(
 Yes, I am using it as my LinuxCNC development machine.
 What video problems are you having? I just did a simple LiveCD install
 of LinuxCNC 2.5, and it works fine.
I'll put my hand up ;) I was looking to use it as a media server direct from 
the 
HDMI output so I'm running the XBMC LiveUSB stick. Text mode things are running 
OK, but the second the mouse appears the whole thing grinds to a halt and it 
takes several seconds for the cursor to follow a mouse move. If you say you 
have 
the LiveCD working then I'll give that a go. I've already run SUSE12.1 on as 
well thinking it might be a USB problem but with exactly the same results ...
I'm using the D2500HN for the CNC kits and that seems to be fine but only has 
the VGA output ;)

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Re: [Emc-users] Intel DN2800MT - possible new LinuxCNC star?

2012-07-17 Thread Viesturs Lācis
2012/7/17 andy pugh bodge...@gmail.com:
 On 17 July 2012 07:28, Lester Caine les...@lsces.co.uk wrote:

 Anybody ACTUALLY using this board with Linux? I picked one up to test out, 
 but
 the reports about problems with the video site are quite correct. It's 
 unusable :(

 Yes, I am using it as my LinuxCNC development machine.

Don't You have D510? Or have You made some upgrades?

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Re: [Emc-users] Intel DN2800MT - possible new LinuxCNC star?

2012-07-17 Thread andy pugh
On 17 July 2012 10:09, Viesturs Lācis viesturs.la...@gmail.com wrote:

 Don't You have D510? Or have You made some upgrades?

I needed to move the D510 to the machine it was bought to control, so
I bought the DN2800 as a dedicated dev machine.

I now have 2 machine tools and 4 LinuxCNC computers

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Re: [Emc-users] Intel DN2800MT - possible new LinuxCNC star?

2012-07-17 Thread Joseph Chiu
Yishin, what was that Beagle Bone running?

On Tue, May 22, 2012 at 6:39 PM, Yishin Li y...@araisrobo.com wrote:

 On Wed, May 23, 2012 at 1:46 AM, Viesturs Lācis viesturs.la...@gmail.com
 wrote:

   PCIe slot is suitable for 6i25, which is probably very new, it's even
 not
   in MESA's price list, I guess the price is compatible to 5i25's.
 
  Is there a PCIe-to-PCI adapter available?
 
  
   Anyone tested the latency?
  
 
  Latency _should_ be very good.
 
  But I doubt that I will buy this board as it has not pci slot.
 
  Viesturs,

 Maybe you could consider BeagleBone with Mesa's 7i43/USB board.
 I saw smooth stepper motion with above combination.
 As it's with USB interface, it could work with modern laptop or netbook.

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Re: [Emc-users] Intel DN2800MT - possible new LinuxCNC star?

2012-07-17 Thread Lester Caine
Lester Caine wrote:
 I'm using the D2500HN for the CNC kits and that seems to be fine but only has
 the VGA output;)
OK turns out the D2500HN also has problems when running in Linux graphics mode, 
so as far as I am concerned they are not usable for Linux. I've got bigger 
machines for the development work, the ITX boxes are only used for machine 
testing, and I've got an Orac lathe that I'm trying to get running on LinuxCNC 
(and Mach3) at the moment. THOUGHT the D2500HN had installed OK, but now I 
start 
to play in earnest it's just very slow responding - just not as slow as the 
media client.

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Re: [Emc-users] Intel DN2800MT - possible new LinuxCNC star?

2012-07-17 Thread Yishin Li
On Tue, Jul 17, 2012 at 5:27 PM, Joseph Chiu joec...@joechiu.com wrote:

 Yishin, what was that Beagle Bone running?


Joseph,

It's with Ubuntu 12.04 armhf.
The detail installation guide is here: http://elinux.org/BeagleBoardUbuntu
And, this is my note about installing headless LinuxCNC on BeagleBone:
https://sites.google.com/a/araisrobo.com/en/linuxcnc/build-for-beagle

Cheers,

Yishin
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[Emc-users] can't jog using handwheel with gantrykins

2012-07-17 Thread David Dyke
I have been following the gantrykins conversation recently as we have been
installing linuxcnc on a gantry machine.
There is some odd behavior with ignoring soft limits, and jumping to joint
mode at moments when it is least desirable.
I now find that the hand wheel jogging does not seem to work.
When the same file is loaded using trivkins, jogging works normally, can
anyone suggest a solution?

Dave
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Re: [Emc-users] Spindle hooked to dc servo amp

2012-07-17 Thread Jon Elson
Gene Heskett wrote:
 The spindle has a gear shift and in high gear can make 2500 revs.  Thats a 
 hair over 40 rps, and the encoder doesn't appear to be suffering from 
 skipped counts.
   
Yes, you numbers seem OK.  Well I am getting good results at 81 teeth, 
you are
getting both loop instability and grinding of the Z axis when synched to 
the spindle
with 39 teeth, is that right?  I think the closed-loop spindle speed 
control can maybe
be solved with filtering, but the Z axis grinding probably can't, as 
putting any filter in
the spindle path could cause problems.  I'm surprised a 2:1 change in 
the spindle
resolution would make that much difference.  Are you running the hal 
encoder component in
the X1 mode or the X4 mode?
 Is there a way to setup nfs that Just Works(TM)?  This is all a private 
 network, using host files.  I _think_ all the usual suspects have been 
 properly configured.
   
I don't use NFS, just sftp, and it works fine and is pretty easy to move 
files around between
machines.  I have 5 machines I move files around to regularly.  NFS may 
not work so
well if the various computers are being booted and shut down a lot, 
which is the
default here.

Jon

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Re: [Emc-users] can't jog using handwheel with gantrykins

2012-07-17 Thread Sebastian Kuzminsky
Incremental jogging (as with a hand wheel) doesn't work with gantrykins :-(

Continuous jogging does, but that doesn't help you much.

And yes, gantrykins also ignores soft limits.


On Jul 17, 2012, at 10:01 , David Dyke wrote:

 I have been following the gantrykins conversation recently as we have been
 installing linuxcnc on a gantry machine.
 There is some odd behavior with ignoring soft limits, and jumping to joint
 mode at moments when it is least desirable.
 I now find that the hand wheel jogging does not seem to work.
 When the same file is loaded using trivkins, jogging works normally, can
 anyone suggest a solution?
 
 Dave
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Re: [Emc-users] Intel DN2800MT - possible new LinuxCNC star?

2012-07-17 Thread Jon Elson
Joseph Chiu wrote:
 Yishin, what was that Beagle Bone running?

 On Tue, May 22, 2012 at 6:39 PM, Yishin Li y...@araisrobo.com wrote:
   

 Maybe you could consider BeagleBone with Mesa's 7i43/USB board.
 I saw smooth stepper motion with above combination.
 As it's with USB interface, it could work with modern laptop or netbook.
 
The Beagle products use TI ARM Cortex CPUs, and there is no RTAI patch 
for Linux
for these CPUs.  That makes it hard to run LinuxCNC on them.

Jon

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Re: [Emc-users] Intel DN2800MT - possible new LinuxCNC star?

2012-07-17 Thread Jon Elson
Yishin Li wrote:
 On Tue, Jul 17, 2012 at 5:27 PM, Joseph Chiu joec...@joechiu.com wrote:
   
 Yishin, what was that Beagle Bone running?
 
 Joseph,

 It's with Ubuntu 12.04 armhf.
 The detail installation guide is here: http://elinux.org/BeagleBoardUbuntu
 And, this is my note about installing headless LinuxCNC on BeagleBone:
 https://sites.google.com/a/araisrobo.com/en/linuxcnc/build-for-beagle
   
But, note this is a simulator-only, non-real time system.

Jon

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Re: [Emc-users] can't jog using handwheel with gantrykins

2012-07-17 Thread andy pugh
On 17 July 2012 17:38, Sebastian Kuzminsky s...@highlab.com wrote:
 Incremental jogging (as with a hand wheel) doesn't work with gantrykins :-(
...
 And yes, gantrykins also ignores soft limits.

In many cases gantrykins is a lot more trouble than it is worth. It
does allow the gantry to auto-square, but that is the only thing it
has going for it, as far as I can see.

There is certainly no point using Gantrykins in a setup with only one
set of home switches.

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Re: [Emc-users] Spindle hooked to dc servo amp

2012-07-17 Thread Eric Keller
On Tue, Jul 17, 2012 at 12:36 PM, Jon Elson el...@pico-systems.com wrote:

 I don't use NFS, just sftp, and it works fine and is pretty easy to move
 files around between
 machines.

if you set up mediawiki or svn as a server on one of your machines, you can
use use the resulting web server to serve files.  Clients use wget to copy
files.  Between wget and scp, I never use sftp any more.  We download the
same files to many clients, wget just seems to be the easiest way to do
that.
Eric
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Re: [Emc-users] Intel DN2800MT - possible new LinuxCNC star?

2012-07-17 Thread Jack Coats
On Tue, Jul 17, 2012 at 4:56 AM, Yishin Li y...@araisrobo.com wrote:
 On Tue, Jul 17, 2012 at 5:27 PM, Joseph Chiu joec...@joechiu.com wrote:

 Yishin, what was that Beagle Bone running?


 Joseph,

 It's with Ubuntu 12.04 armhf.
 The detail installation guide is here: http://elinux.org/BeagleBoardUbuntu
 And, this is my note about installing headless LinuxCNC on BeagleBone:
 https://sites.google.com/a/araisrobo.com/en/linuxcnc/build-for-beagle

 Cheers,

 Yishin

I just got delivery of a Raspberry Pi (B) ... runs ARM code and there is a
debian distribution for it.  Just not enough I/O available to make it a
rational LinuxCNC machine :(

It has composite video and HDMI video available, 2port USB for whatever
(keyboard, mouse, external drives, bluetooth, whatever you want),
and boots and runs from an SD card.  There is also a 'camera' interface
and a few GPIO pins (haven't checkd them out yet), a 'sound' port to plug
in an amplifier for audio and over the HDMI.
Power is via a 5v micro USB connector. needs 700mA.
JTAG interface pins, 10/100 ethernet port (standard connector),
a few status led's for 'der blinken lights'.  Ethernet is Broadcom so
don't expect detailed chip info, but it should 'just work' with appropriate
drivers.  Runs ARM11 processor at 800MHz

Info on raspberrypi.org

... Still I think I can find some uses for it (other than a toy, that
it is now).

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Re: [Emc-users] Intel DN2800MT - possible new LinuxCNC star?

2012-07-17 Thread andy pugh
On 17 July 2012 20:08, Jack Coats j...@coats.org wrote:

 I just got delivery of a Raspberry Pi (B) ... runs ARM code and there is a
 debian distribution for it.  Just not enough I/O available to make it a
 rational LinuxCNC machine :(

17? Sounds at least as capable as a single-parport machine.

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Re: [Emc-users] Spindle hooked to dc servo amp

2012-07-17 Thread Gene Heskett
On Tuesday 17 July 2012 14:51:38 Jon Elson did opine:

 Gene Heskett wrote:
  The spindle has a gear shift and in high gear can make 2500 revs. 
  Thats a hair over 40 rps, and the encoder doesn't appear to be
  suffering from skipped counts.
 
 Yes, you numbers seem OK.  Well I am getting good results at 81 teeth,
 you are
 getting both loop instability and grinding of the Z axis when synched to
 the spindle
 with 39 teeth, is that right?  I think the closed-loop spindle speed
 control can maybe
 be solved with filtering, but the Z axis grinding probably can't, as
 putting any filter in
 the spindle path could cause problems.  I'm surprised a 2:1 change in
 the spindle
 resolution would make that much difference.  Are you running the hal
 encoder component in
 the X1 mode or the X4 mode?
 
  Is there a way to setup nfs that Just Works(TM)?  This is all a
  private network, using host files.  I _think_ all the usual suspects
  have been properly configured.
 
 I don't use NFS, just sftp, and it works fine and is pretty easy to move
 files around between
 machines.  I have 5 machines I move files around to regularly.  NFS may
 not work so
 well if the various computers are being booted and shut down a lot,
 which is the
 default here.
 
And I can never remember the ancient, arcane, and usually nearly two full 
lines of text of the command line that makes it work, I believe I have 
succeeded twice in damned near 14 years of running linux.

I studied the man page for nearly 2 hours trying to decode that obtuse SOB 
of a man page for sftp about 3 weeks ago, gave up and asked on the ubuntu 
list how to make nfs work.  I had an answer that worked in half an hour, 
but since then all 3 machines have been rebooted at least twice, and nfs is 
DOA.  Again, for the 5th or 6th time in 10 years, I've made it work about 
that many times, but its gone again in 30 minutes.

I used to use samba for that stuff, but Tridge broke it about 3 years back, 
so its been about that long since I was able to use samba for this stuff.

The nfs manpages, what there is of them, all talk about doing it in 
/etc/fstab, the authors of such drivel conveniently and completely 
oblivious to the fact that one miss-typed character in /etc/fstab, and the 
machine will not boot from anything but the install cd, where you have to 
mount the drive with etc on it, then use some damned editor (nano/pico?) 
you have only used 3 times under duress to fix it.  If you can figure out 
what needs fixed...

Not your fault at all Jon, but when you have your own private local 
network,  with the same install from the same cd on all 4 machines (there's 
a lappy in this mix too) there is absolutely zero excuse for making it so 
damned difficult that its easier to get dressed, grab a usb stick and copy 
what you want to move to it, grab the stick, bring it 100' back down the 
hill and plug it in here, only to find the first thing you have to do is 
issue as root, a chown -R gene:gene /media/keyname/ command because for 
some reason gene on shop, gene on lathe, and gene on coyote, while I am the 
default sudo enabled first user #1000 on all 4 boxes, still don't have 
perms to read the ^% files!  What the heck is the diff, I own that file on 
all 4 machines!

But after the chown, it works.  So does mc, when nfs works, and that 
doesn't need the chown, it just works WHEN it works.

So that is what I'll do right now in order to get the .hal and .ini files 
where they can be read by you folks to see where I screwed up.  With good 
luck, half an hour maybe.  But my luck hasn't been that good the last 36 
hours.  I just made a 2nd shaft extension for that ball screw, and the last 
step, cutting a thread for a 5/16 18 tpi nylock nut for bearing 
adjustment, stripped the threads off the end section of because I can't get 
a 5/16 18 thread cut when there is a .177 thru hole for the differential 
screw access thru it lengthways.  So I've gone scouting and have both 5/16 
24, and 8mmx1.0mm nuts to try, which should give me another .020 of steel 
for wall thickness at the bottoms of the threads.

Thanks for reading this far. Jon.

Cheers, Gene
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Re: [Emc-users] Spindle hooked to dc servo amp

2012-07-17 Thread Gene Heskett
On Tuesday 17 July 2012 15:47:33 Jon Elson did opine:

 Gene Heskett wrote:

Got them Jon, see at:

http://coyoteden.dyndns-free.com:85/gene/Genes-os9-stf/GCode/

Cheers, Gene
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Re: [Emc-users] Intel DN2800MT - possible new LinuxCNC star?

2012-07-17 Thread Dave
Where did you get your Raspberry Pi from??

I have a standing order for two of them at the moment.

Scarcer than hen's teeth!

Dave

On 7/17/2012 3:08 PM, Jack Coats wrote:
 On Tue, Jul 17, 2012 at 4:56 AM, Yishin Liy...@araisrobo.com  wrote:

 On Tue, Jul 17, 2012 at 5:27 PM, Joseph Chiujoec...@joechiu.com  wrote:

  
 Yishin, what was that Beagle Bone running?



 Joseph,

 It's with Ubuntu 12.04 armhf.
 The detail installation guide is here: http://elinux.org/BeagleBoardUbuntu
 And, this is my note about installing headless LinuxCNC on BeagleBone:
 https://sites.google.com/a/araisrobo.com/en/linuxcnc/build-for-beagle

 Cheers,

 Yishin
  
 I just got delivery of a Raspberry Pi (B) ... runs ARM code and there is a
 debian distribution for it.  Just not enough I/O available to make it a
 rational LinuxCNC machine :(

 It has composite video and HDMI video available, 2port USB for whatever
 (keyboard, mouse, external drives, bluetooth, whatever you want),
 and boots and runs from an SD card.  There is also a 'camera' interface
 and a few GPIO pins (haven't checkd them out yet), a 'sound' port to plug
 in an amplifier for audio and over the HDMI.
 Power is via a 5v micro USB connector. needs 700mA.
 JTAG interface pins, 10/100 ethernet port (standard connector),
 a few status led's for 'der blinken lights'.  Ethernet is Broadcom so
 don't expect detailed chip info, but it should 'just work' with appropriate
 drivers.  Runs ARM11 processor at 800MHz

 Info on raspberrypi.org

 ... Still I think I can find some uses for it (other than a toy, that
 it is now).

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Re: [Emc-users] Spindle hooked to dc servo amp

2012-07-17 Thread Jon Elson
Gene Heskett wrote:

 And I can never remember the ancient, arcane, and usually nearly two full 
 lines of text of the command line that makes it work, I believe I have 
 succeeded twice in damned near 14 years of running linux.

   
HUH?  I use commands like
sftp username@ip_address
then, cd, ls, pwd, and finally get or put filename.  it can't be any 
simpler than that!
Of course, you need an sshd running on the computer you want to connect 
to, but
that is fairly simple, too.
 I studied the man page for nearly 2 hours trying to decode that obtuse SOB 
 of a man page for sftp about 3 weeks ago
I can't understand the problem.  you cd to the directory you want to 
pull or push files
from, then make the ssh connection, cd to the remote directory and get 
or put the files.
If you want to change the local directory, lcd, lpwd and lls do the 
local version of
cd, pwd and ls commands.  It works mostly like the cp command.

There are a buch of more complex options, I avoid them.

 Not your fault at all Jon, but when you have your own private local 
 network,  with the same install from the same cd on all 4 machines
Not a chance, I have Beagle Boards (ARM CPU), Ubuntu (6.06 up to 12.1), 
Debian,
CentOS and some other systems here, they all work seamlessly with sftp.  
I occasionally
send files to/from Sun machines and other non-X86 architectures and 
non-Linux systems,
again, no problem with sftp.
  (there's 
 a lappy in this mix too) there is absolutely zero excuse for making it so 
 damned difficult that its easier to get dressed, grab a usb stick and copy 
 what you want to move to it, grab the stick, bring it 100' back down the 
 hill and plug it in here, only to find the first thing you have to do is 
 issue as root, a chown -R gene:gene /media/keyname/ command because for 
 some reason gene on shop, gene on lathe, and gene on coyote, while I am the 
 default sudo enabled first user #1000 on all 4 boxes, still don't have 
 perms to read the ^% files!  What the heck is the diff, I own that file on 
 all 4 machines!
   
OK, well, there's one of your problems.  NFS is a local files system 
on each node, and
you MUST coordinate file owner IDs across all the systems, or use 
proxies.  sftp avoids
that problem, as each end of the sftp session is logged into its 
machine, and files brought
across get the local owner's permissions.

Jon


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Re: [Emc-users] Spindle hooked to dc servo amp

2012-07-17 Thread Jon Elson
Gene Heskett wrote:
 On Tuesday 17 July 2012 15:47:33 Jon Elson did opine:

   
 Gene Heskett wrote:
 

 Got them Jon, see at:

 http://coyoteden.dyndns-free.com:85/gene/Genes-os9-stf/GCode/

 Cheers, Gene
   
Well, I don't see anything wrong.  I do see the spindle P term set to 
100, that may
be too high for stable response.  Since you are feeding velocity out of the
encoder component, it will have a lot of fluctuation due to the sampling.
Somebody, I think Andy or Peter, suggested using the filtered velocity 
output
from the encoder component at least for the closed-loop velocity instead of
the raw velocity output.  It won't help for the spindle-synched axis, 
though.

Jon

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Re: [Emc-users] Intel DN2800MT - possible new LinuxCNC star?

2012-07-17 Thread Jack Coats
Newark Electronics.  Ordered it some time ago.  They charged my card
when they were available to ship.

 ... Jack


On Tue, Jul 17, 2012 at 7:52 PM, Dave e...@dc9.tzo.com wrote:
 Where did you get your Raspberry Pi from??

 I have a standing order for two of them at the moment.

 Scarcer than hen's teeth!

 Dave


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