On 20 February 2014 15:37, Rusty Russell rusty1...@gmail.com wrote:
I am rather new to this, and I don't know of anyone locally to help
(Huntsville, AL area). Using a Sain Smart B.O.B and Driver boards. All
three axes work correctly when instructed to traverse in a negative
direction,
On 17 February 2014 18:15, Charles Steinkuehler
char...@steinkuehler.net wrote:
Yeah, this is the solution I'm leaning towards. I appreciate the
concept of gantrykins, but given how LinuxCNC deals with non-trivial
kins, I don't think it's the way to go unless you really have a
non-Cartesian
On 19 February 2014 23:54, Gregg Eshelman g_ala...@yahoo.com wrote:
Has anyone done a CNC conversion on a Hardinge TM or UM?
No, but it looks like a very close relative of my Harrison, and I am
happy with that conversion.
--
atp
If you can't fix it, you don't own it.
I had an issue on my mill - Mesa 5I25 and Gecko G540, where it would loose
steps in the positive X direction. Not much, but a small percentage of
steps.
Turns out I was driving G540 with too narrow pulses, and a small percentage
of the time the Optoisolators on the G540 would miss one of the
Hi,
I'm *guessing* that they are the older Geckos (non digital). The older
drives had to have the DIR line stable for quite a time after the STEP pulse.
I believe this was to manage the resonance compensation circuit. This makes me
think the DIR line was not actually latched at the time
2014-02-24 14:58 GMT+02:00 Charles Steinkuehler char...@steinkuehler.net:
On 2/24/2014 4:11 AM, andy pugh wrote:
On 17 February 2014 18:15, Charles Steinkuehler
char...@steinkuehler.net wrote:
Yeah, this is the solution I'm leaning towards. I appreciate the
concept of gantrykins, but
I have been testing a few things - 7i80, Robs new TP. I thought I would
combine the two. After finding out that the mesa encoder counters will
count step/dir (awesome work Peter!) - I thought 'hey - I can log the
printer port from linuxcnc'
http://youtu.be/qo74moJ30H4
Then I though 'Hey -
Thats brilliant! Very interesting info Sam!
Stephen
On Mon, Feb 24, 2014 at 2:19 PM, sam sokolik sa...@empirescreen.com wrote:
I have been testing a few things - 7i80, Robs new TP. I thought I would
combine the two. After finding out that the mesa encoder counters will
count step/dir
Hello!
Can anyone suggest a reasonable driver for 5 phase stepper motors?
Motor dimensions are slightly larger than Nema42 standard, there is zero
documentation available and there are no labels on motors themselves, so I
have no idea about the phase current requirements. I guess that something
On 24 February 2014 20:37, Viesturs Lācis viesturs.la...@gmail.com wrote:
Can anyone suggest a reasonable driver for 5 phase stepper motors?
I found these earlier today answering a forum thread:
http://www.ebay.co.uk/itm/321302774338
--
atp
If you can't fix it, you don't own it.
we have some BERGER LAHR drives with large 5 phase steppers.. As they
have gone bad - we have replace the drive/stepper as replacements are
very expensive.
sam
On 02/24/2014 02:37 PM, Viesturs Lācis wrote:
Hello!
Can anyone suggest a reasonable driver for 5 phase stepper motors?
Motor
On Monday 24 February 2014 16:04:35 andy pugh did opine:
On 24 February 2014 20:37, Viesturs Lؤپcis viesturs.la...@gmail.com
wrote:
Can anyone suggest a reasonable driver for 5 phase stepper motors?
I found these earlier today answering a forum thread:
Sam, this is really interesting. You have a very creative mind, with this
and your Emco Compact-5 CNC adaptions, etc.
I wonder if your interpretation of Machs' avoidance of acceleration limits
is one potential of the Mach looses steps issue that I have read about?
The first time was in a
ohhh wrong thread sorry
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half as much huh does your drive step on rise? step on fall or both?
until i realized that mine stepped on rise and fall i was a bit confounded
myself . also do you have the - pins strapped to ground plane? yep that one
got me too ! the half as much though was definitely from stepping both
ahhh yes this is where this should have went :)
half as much huh does your drive step on rise? step on fall or both?
until i realized that mine stepped on rise and fall i was a bit confounded
myself . also do you have the - pins strapped to ground plane? yep that one
got me too ! the
The excellent USB userspace driver for the XHC-HB04 pendant
contributed by Frederic Rible has been merged into git master
and is now available in recent buildbot debs. Thanks Frederic!
The driver can be used as a hal module, example:
loadusr -W xhc-hb04 -I xhc-hb04-layout2.cfg -H
and can also
On 02/24/2014 03:07 PM, Gene Heskett wrote:
Interesting, but can data for it be extracted from the Vextra site? As is,
its a pig in a plain brown unlabeled wrapper.
Yes, I think the current and voltage ratings are coded fairly
simply in the part #. they may also be listed on the case
if the
I am surprised people still put up with me... I do have a lot of help
from the community. The compact 5 configs using the latch and dual
stepgens would not have been possible if not for Jeff and Chris's
smarts.. (I am the big picture guy usually...)
As far as machs acceleration violations.
On 02/24/2014 10:03 PM, sam sokolik wrote:
I am surprised people still put up with me... I do have a lot of help
from the community. The compact 5 configs using the latch and dual
stepgens would not have been possible if not for Jeff and Chris's
smarts.. (I am the big picture guy
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