On 31 January 2014 05:30, Dave Cole linuxcncro...@gmail.com wrote:
http://www.automationtechnologiesinc.com/wp-content/uploads/downloads/2014/01/2-Quadrant-BLDC-speed-driver-ver.-48ZWSK50-B-804-1.pdf
It _looks_ like a conventional velocity-controlled servo drive (though
I actually think it will
On 1/31/2014 7:41 AM, andy pugh wrote:
On 31 January 2014 05:30, Dave Cole linuxcncro...@gmail.com wrote:
http://www.automationtechnologiesinc.com/wp-content/uploads/downloads/2014/01/2-Quadrant-BLDC-speed-driver-ver.-48ZWSK50-B-804-1.pdf
It _looks_ like a conventional velocity-controlled
On Wed, Jan 29, 2014 at 5:35 PM, Jeshua Lacock jes...@3dtopo.com wrote:
Interesting - yeah works out to around the same price and would be a
infinity better set up.
Well, checking on Automation Tech, the same motor is listed at
$78, I think. So, I don't know if Keling will honor the $52
On 01/30/2014 04:23 AM, Mark Wendt wrote:
Automation Technology is Keling. The Automation Tech web
site is the current one. Dunno why John keeps the old site
up and running other than as a visual redirect. He ought
to scrap the entire old site and leave a dummy page with a
link to the new
2014-01-30 Jeshua Lacock jes...@3dtopo.com:
Or perhaps this driver:
http://www.automationtechnologiesinc.com/products-page/nema23/dc-brushless-driver-for-kl23bls-115
Does anyone have experience with these drives? I have few servo motors
whose current requirements are too large for 7i39 drive,
On 1/30/2014 2:44 PM, Viesturs Lācis wrote:
2014-01-30 Jeshua Lacock jes...@3dtopo.com:
Or perhaps this driver:
http://www.automationtechnologiesinc.com/products-page/nema23/dc-brushless-driver-for-kl23bls-115
Does anyone have experience with these drives? I have few servo motors
whose
On 30 January 2014 22:23, Dave Cole linuxcncro...@gmail.com wrote:
The hint is: pot control with external 5 volt control available
However, it might still work. LinuxCNC can output speed-dir if needed.
--
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto
Except that if you put it on an axis and you wanted to stop, the drive
could not apply braking torque..
I can't imagine that working on a servo axis. Even steppers can apply
braking torque.
Dave
On 1/30/2014 5:44 PM, andy pugh wrote:
On 30 January 2014 22:23, Dave Cole
On 30 January 2014 23:58, Dave Cole linuxcncro...@gmail.com wrote:
Except that if you put it on an axis and you wanted to stop, the drive
could not apply braking torque..
Surely there is no torque only when there is no position error. With
the slightest hint of overshoot the motor will be
On Thursday 30 January 2014 20:28:27 Dave Cole did opine:
Except that if you put it on an axis and you wanted to stop, the drive
could not apply braking torque..
I can't imagine that working on a servo axis. Even steppers can apply
braking torque.
Dave
I do, by making hal apply a staged
On 1/30/2014 7:08 PM, andy pugh wrote:
On 30 January 2014 23:58, Dave Cole linuxcncro...@gmail.com wrote:
Except that if you put it on an axis and you wanted to stop, the drive
could not apply braking torque..
Surely there is no torque only when there is no position error. With
the slightest
On Jan 22, 2014, at 10:21 PM, Jon Elson el...@pico-systems.com wrote:
570 Oz-In is a lot, but of course, that is only at
standstill. But, they
should do fine, especially with a belt reduction. 5 A will
require the big Gecko 203 drive. For that, you might consider Gecko's
servo
motors
On Jan 29, 2014, at 10:22 AM, Jon Elson el...@pico-systems.com wrote:
On 01/29/2014 04:04 AM, Jeshua Lacock wrote:
they have a very affordable size 23 brushless motor, the
KL23BLS115, good for 180 Oz-In (but that is a RUNNING
rating, not a standstill rating). $52 without encoder.
You can
On Jan 29, 2014, at 6:26 PM, Jon Elson el...@pico-systems.com wrote:
On 01/29/2014 04:35 PM, Jeshua Lacock wrote:
I see. That would pretty much be a deal breaker as just the power supply
alone for 5 axes would be $750. Could I use something else (not that I don't
think its not worth it - I
On Sun, Jan 26, 2014 at 12:20 PM, Jon Elson el...@pico-systems.com wrote:
I just don't worry about this idiot problem. If you've
seen the picture of the $600 million NOAA weather
satellite that fell over and got smashed in 2003, I
just know that no matter HOW stupid a mistake I
ever make,
On Sat, Jan 25, 2014 at 12:53 PM, Gene Heskett ghesk...@wdtv.com wrote:
Gene,
Hie thee to this divine web site, and look under Lead Screws, then PS
style lead screws and PS style nuts. I've got one of these on my Z
axis on my CNC saw beveler. The screws are some kind of modified
On Sunday 26 January 2014 09:31:48 Mark Wendt did opine:
On Sat, Jan 25, 2014 at 12:53 PM, Gene Heskett ghesk...@wdtv.com wrote:
Gene,
Hie thee to this divine web site, and look under Lead Screws, then
PS style lead screws and PS style nuts. I've got one of these on
my Z axis on
On Sun, Jan 26, 2014 at 9:32 AM, Gene Heskett ghesk...@wdtv.com wrote:
On Sunday 26 January 2014 09:31:48 Mark Wendt did opine:
On Sat, Jan 25, 2014 at 12:53 PM, Gene Heskett ghesk...@wdtv.com
wrote:
Gene,
Hie thee to this divine web site, and look under Lead Screws, then
PS
On Sunday 26 January 2014 09:48:44 Mark Wendt did opine:
On Sun, Jan 26, 2014 at 9:32 AM, Gene Heskett ghesk...@wdtv.com wrote:
On Sunday 26 January 2014 09:31:48 Mark Wendt did opine:
On Sat, Jan 25, 2014 at 12:53 PM, Gene Heskett ghesk...@wdtv.com
wrote:
Gene,
Hie
On Sunday 26 January 2014 09:31:10 Mark Wendt did opine:
On Sat, Jan 25, 2014 at 12:53 PM, Gene Heskett ghesk...@wdtv.com wrote:
Gene,
Hie thee to this divine web site, and look under Lead Screws, then
PS style lead screws and PS style nuts. I've got one of these on
my Z axis on
On Sun, Jan 26, 2014 at 9:50 AM, Gene Heskett ghesk...@wdtv.com wrote:
And we're always good company. Humor-wise anyway. ;-)
Mark
And I'm glad, otherwise we'd be insufferable. ;-)
Cheers, Gene
I resemble that remark. ;-)
Mark
On Sunday 26 January 2014 10:13:19 Mark Wendt did opine:
On Sun, Jan 26, 2014 at 9:50 AM, Gene Heskett ghesk...@wdtv.com wrote:
And we're always good company. Humor-wise anyway. ;-)
Mark
And I'm glad, otherwise we'd be insufferable. ;-)
Cheers, Gene
I resemble that
On Sun, Jan 26, 2014 at 10:16 AM, Gene Heskett ghesk...@wdtv.com wrote:
And I'm glad, otherwise we'd be insufferable. ;-)
Cheers, Gene
I resemble that remark. ;-)
Mark
And that is something I wouldn't ever refer to you as being. Myself now,
thats a different horse...
I just don't worry about this idiot problem. If you've
seen the picture of the $600 million NOAA weather
satellite that fell over and got smashed in 2003, I
just know that no matter HOW stupid a mistake I
ever make, it will NEVER come close to that one!
It cost Lockheed $150 million to fix, and
On Sunday 26 January 2014 13:05:06 Jon Elson did opine:
I just don't worry about this idiot problem. If you've
seen the picture of the $600 million NOAA weather
satellite that fell over and got smashed in 2003, I
just know that no matter HOW stupid a mistake I
ever make, it will NEVER come
REN NOAA-19.
Neat. The building behind mine @work tests space vehicles, and, for some
of the testing people can not be in the same room, in case of bits flying
off (e.g., program the linear accelerator to simulate an Airiane 5 launch,
and see what happens to the satellite.
Don't think they've
On Thu, Jan 23, 2014 at 2:32 PM, Gene Heskett ghesk...@wdtv.com wrote:
On Thursday 23 January 2014 14:30:41 andy pugh did opine:
On 23 January 2014 15:24, Gene Heskett ghesk...@wdtv.com wrote:
Agreed and amen. Unforch, the size of ball screws it takes to do that
to my HF micromill, are
On Saturday 25 January 2014 12:50:35 Mark Wendt did opine:
On Thu, Jan 23, 2014 at 2:32 PM, Gene Heskett ghesk...@wdtv.com wrote:
On Thursday 23 January 2014 14:30:41 andy pugh did opine:
On 23 January 2014 15:24, Gene Heskett ghesk...@wdtv.com wrote:
Agreed and amen. Unforch, the size
Quoth Jeshua Lacock.
I figured backlash was common to just about all reasonably priced mills, and I
was wondering what folks did with them to compensate with CNC.
FWIW, I cnc'd my WMD30LValike reasonably priced mill using the
standard ACME screws thinking that backlash could be compensate
On Thursday 23 January 2014 09:13:54 Russell Brown did opine:
Quoth Jeshua Lacock.
I figured backlash was common to just about all reasonably priced
mills, and I was wondering what folks did with them to compensate with
CNC.
FWIW, I cnc'd my WMD30LValike reasonably priced mill using
Tex Steve (PMDX) have done a couple ball screw micromills. I go to the
monthly meetings and have seen them;) I think Tex has to machine the nut a
little to fit but they appear to work great. Might want to drop Steve a
line again and see what they're doing if he doesn't pipe in here first.
On
On Thursday 23 January 2014 12:43:06 Stephen Dubovsky did opine:
Tex Steve (PMDX) have done a couple ball screw micromills. I go to
the monthly meetings and have seen them;) I think Tex has to machine
the nut a little to fit but they appear to work great. Might want to
drop Steve a line
On 23 January 2014 15:24, Gene Heskett ghesk...@wdtv.com wrote:
Agreed and amen. Unforch, the size of ball screws it takes to do that to
my HF micromill, are made out of pure unobtainium. The smallest I can buy
on fleabay is 12mm
On Thursday 23 January 2014 14:30:41 andy pugh did opine:
On 23 January 2014 15:24, Gene Heskett ghesk...@wdtv.com wrote:
Agreed and amen. Unforch, the size of ball screws it takes to do that
to my HF micromill, are made out of pure unobtainium. The smallest I
can buy on fleabay is 12mm
On 01/21/2014 11:10 PM, Jeshua Lacock wrote:
Greetings,
I am the proud new owner of an Bolton Tools AT750 combination lathe and mill
see here:
http://3DTOPO.com/Bolton-AT750.jpg
I am super impressed with the machine so far.
Ugh, we have a somewhat similar machine at work, it is
pretty
On Jan 22, 2014, at 10:25 AM, Jon Elson el...@pico-systems.com wrote:
On 01/21/2014 11:10 PM, Jeshua Lacock wrote:
Greetings,
I am the proud new owner of an Bolton Tools AT750 combination lathe and mill
see here:
http://3DTOPO.com/Bolton-AT750.jpg
I am super impressed with the
On Wednesday 22 January 2014 19:14:34 Jeshua Lacock did opine:
On Jan 22, 2014, at 10:25 AM, Jon Elson el...@pico-systems.com wrote:
On 01/21/2014 11:10 PM, Jeshua Lacock wrote:
Greetings,
I am the proud new owner of an Bolton Tools AT750 combination lathe
and mill see here:
On Jan 22, 2014, at 5:39 PM, Gene Heskett ghesk...@wdtv.com wrote:
On Wednesday 22 January 2014 19:14:34 Jeshua Lacock did opine:
Speaking of anti-backlash ballscrews, have you guys seen this printable:
http://www.thingiverse.com/thing:125529
That is a cute idea, but you likely have
On Jan 22, 2014, at 5:39 PM, Gene Heskett ghesk...@wdtv.com wrote:
There is a link for how to make nuts that fit your screws, usually with
less than a thou of backlash, using acetal/delrin for the nut material.
http://bbs.homeshopmachinist.net/threads/43645-Making-Acetal-leadscrew-
i did this with my mill and am truly impressed with its repeatability. i
think you can give up on software compensation for backlash though with
your factory screws . simply make the nuts and go from there it will save
much time and effort
jeremy youngs
On 01/22/2014 05:58 PM, Jeshua Lacock wrote:
Hmmm, what machine are you referring to? I just checked and I have full
8x12x3 inches of travel for the mill.
Well, yours seems to have the adjustable head height, ours
doesn't.
It also sounds like yours may be overall a larger machine
that ours.
On 01/22/2014 08:41 PM, Jon Elson wrote:
570 Oz-In is a lot, but of course, that is only at
standstill. But, they
should do fine, especially with a belt reduction. 5 A will
require the
big Gecko 203 drive. For that, you might consider Gecko's
servo
motors and our PWM servo drives. The
Greetings,
I am the proud new owner of an Bolton Tools AT750 combination lathe and mill
see here:
http://3DTOPO.com/Bolton-AT750.jpg
I am super impressed with the machine so far.
I am open to any suggestions for converting the machine to full LinuxCNC.
I was thinking for budget and
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