Is this stepper torque? The peak torque is only at 0 rpm and drops off
substantially as you increase rpm. You would need to look a the torque
curve of the stepper and decide what top rpm you are looking for and
calculate accordingly..
On Wed, Jul 22, 2020, 11:09 AM John Dammeyer wrote:
> Ho
s (pun possibly).
>
> I have the same BOB and Rigol, but neither are getting as much use as
> yours. Mark
>
> On Wed, Nov 25, 2020 at 7:50 AM Sam Sokolik wrote:
>
> > Here is an image of 100hz pwm modulated with 1hz sin wave. (sent to the
> > bob and measurin
you about 20 levels. 200hz gives you about 100 levels.
(I have tried at least down to 100hz..)
sam
On Wed, Nov 25, 2020 at 3:17 AM John Dammeyer
wrote:
>
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > -it is slw. It is most likely a simple low pass.
Here is an image of 100hz pwm modulated with 1hz sin wave. (sent to the
bob and measuring the analog out.
http://electronicsam.com/images/greenmachine/VID_20201124_215508_exported_0_1606319177524.jpg
On Wed, Nov 25, 2020 at 8:29 AM Sam Sokolik wrote:
> The references I found say mach outp
BTW - the analog out works without the 5v plugged in. - as you can see from
that picture :)
On Wed, Nov 25, 2020 at 10:20 AM Sam Sokolik wrote:
> Zip drive cables are awesome for this type of application. They are built
> very well and I have not had any noise related issues wit
> what are you trying to show with that?
> John
>
>
> > -Original Message-----
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: November-24-20 8:21 PM
> > To: Enhanced Machine Controller (EMC)
> > Subject: [Emc-users] Interesting observations
Granted.. I know these are pretty basic. You can usually find them for
under 10 dollars. They do work quite well though. I was working on some
youtube content and was goofing around with this bob and the printer port.
Setting up a pwmgen to test the analog out unearthed some things..
-It
as always - long and painful
https://youtu.be/RErLu73-Xno
On Wed, Nov 25, 2020 at 11:44 AM Sam Sokolik wrote:
> Mainly showing how low the frequency responce is... You can already see
> the phase shifting and much faster than 1hz it gets worse plus
> attenuation...
>
> On We
Thank you!!
On Wed, Dec 2, 2020 at 3:39 PM andy pugh wrote:
> Version 2.8.1 is largely a bugfix release based on 2.8.0. One
> exception is the porting back of drivers for Mesa 7i95, 7i97 and 7c80.
>
> This should be offered as an automatic update on most systems.
>
> At this time the installer
That has always been the case with axis.. I think most people add some
hal with a pyvcp or such.
On Sun, Nov 15, 2020, 5:16 AM Gene Heskett wrote:
> On Saturday 14 November 2020 23:23:36 Gene Heskett wrote:
>
> > On Saturday 14 November 2020 19:24:02 Gene Heskett wrote:
> > > On Saturday 14
>>>
> >>> On Thu, Oct 22, 2020, 6:47 PM Gregg Eshelman via Emc-users <
> >>> emc-users@lists.sourceforge.net> wrote:
> >>>
> >>> > Looks like this would be perfect for roughing camshafts prior to heat
> >>> > treating
I am sure the torque is limited - but I feel it might have possibility...
https://www.youtube.com/watch?v=QlpkmEEhFqc
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
I have the normal HB04 wireless usb pendant.It looks like the polling
rate is about 100ms. Is this the limitation of the HB04 - or is it a
software setting? Or something else? It works ok - but encoder counts
coming every 100ms or so makes for some wavy jogging.
Thanks
sam
Gene - I will have to look for the python code and script.. Have you
looked at Kent's stuff? I think he has a git repository.
https://youtu.be/w3novypPqos
On Thu, Jan 28, 2021, 2:51 PM Gene Heskett wrote:
> Greetings Sam;
>
> Any chance of sharing a link to your additions to the ini file
Ok. I found the config/python script I was working on... Late 2014..
Boy. I will put them up somewhere tonight..
On Thu, Jan 28, 2021, 9:36 PM Gene Heskett wrote:
> On Thursday 28 January 2021 21:12:31 Bari wrote:
>
> > On 1/28/21 4:55 PM, Gene Heskett wrote:
> > > That's not the video I
http://electronicsam.com/images/emco/terco/
Now - iirc the capture python script is copied to usr/bin/ and made
executable..
It looks like I used opencv-2.4.9 (again - it was over 6 years ago)
On Sun, Jan 31, 2021 at 3:03 PM Sam Sokolik wrote:
> Ok. I found the config/python scrip
:47 skrev Sam Sokolik :
>
> > I am sure the torque is limited - but I feel it might have possibility...
> >
> > https://www.youtube.com/watch?v=QlpkmEEhFqc
> >
> >
> I can totally see that drive on my home made trunnion table!
>
> ___
Wed, Jan 27, 2021 at 8:59 AM Sam Sokolik wrote:
>
> > Nice being able to make things while I sleep..
> >
> > 2 outside side rings - one 202 teeth - one 200 teeth.
> > Inside flex ring - 200 teeth. Feels good - for what it is..
> >
> > http://electronic
.jpg
http://electronicsam.com/images/greenmachine/IMG_20210127_104354.jpg
On Tue, Jan 26, 2021 at 10:37 PM Sam Sokolik wrote:
> I will give it a try - printing a 200 tooth and a taller 200 tooth flex
> gear.
>
> http://electronicsam.com/images/greenmachine/IMG_20210126_22.jp
s quickly.
> >
> > In any case, use a timing belt for the flex wall and it might last 30
> > years.
> >
> But that brings up the tooth profile problem. I've not seen a timing
> belt that resembles the triangular splines?
>
> > On Mon, Jan
andy - that seems like a neat experiment... Do you have an example of the
HD version?
On Tue, Jan 26, 2021 at 11:26 AM andy pugh wrote:
> On Tue, 26 Jan 2021 at 04:47, Sam Sokolik wrote:
> >
> > I am sure the torque is limited - but I feel it might have possibility...
>
&
https://youtu.be/nhHDrK6sCRs
On Wed, Jan 27, 2021 at 3:56 PM Gene Heskett wrote:
> On Wednesday 27 January 2021 16:04:45 Chris Albertson wrote:
>
> > This is a machine-tool related list. Many of us have 3D printers
> > too. So if you have both additive and subtractive tools available and
> >
andy - thank you. I am going to have to draw up the 200 tooth outside gear
and see how that works.. (the diameter of the 200 tooth would have to be
the same diameter as the 202...) What is nice about what I have right now
is the pitch of the 2 gears is the same - so you can engage a lot of
I will give it a try - printing a 200 tooth and a taller 200 tooth flex
gear.
http://electronicsam.com/images/greenmachine/IMG_20210126_22.jpg
On Tue, Jan 26, 2021 at 8:07 PM Chris Albertson
wrote:
> I could read it well enough to see that they only quote prices. The
> old saying is
y have a big harmonic drive here from a robot. )
>
> On Thu, 28 Jan 2021, 18:53 Bari, wrote:
>
> > On 1/27/21 10:55 AM, Sam Sokolik wrote:
> >
> > > Nice being able to make things while I sleep..
> > >
> > > 2 outside side rings - one 202 teeth - one
That would be something to try.. Maybe mesaflash doesn't know how to
handle the 192.168.1.1 ip address? Set the pie to something else like
192.168.1.10
On Fri, Jun 11, 2021 at 11:25 AM Mark Wendt wrote:
> On Fri, Jun 11, 2021 at 12:09 PM John Dammeyer
> wrote:
>
> > Sam,
> > Here's the
I have been happy with it.
Not been using the PI for production - mostly just tinkering.Doing some
pretty complicated configs.
I have had it up for many days at a time with no issues... Running
programs that run hours...
sam
On Sun, Jun 13, 2021 at 4:37 AM Gene Heskett wrote:
> On
in the datasheet the
accuracy 0.2 degrees
so, in my mind, it is no better than a 1800 count encoder if that.. I
have used them in the past - they work ok for things like spindle
feedback. In my experience - for servo positioning feedback - it is too
noisy..
I just used mesaflash the other day on the rpi4 for the 7i92. It has been
a while but I think I followed the network directions here...
https://gnipsel.com/linuxcnc/uspace/rpi4-eth.html
On Fri, Jun 11, 2021, 12:58 AM Ralph Stirling
wrote:
> Did you set a static ip for the pi in
> For what is lts worth you can get a 2500ppr encoder for 30usd from my
> servo
> > supplier.
> >
> > Or a a 5000ppr.
> >
> > Or you can go absolute. And get a 13 something ppr encoder. They
> are
> > about 70usd I think
> >
> > I think it's
that I can
> use the CNC suggest all is good.
>
> I can try adding that /24 to see if it makes a difference but first I'd
> like to know why it's needed.
> ...
> No change. LinuxCNC still moves things. But mesaflash comes up with the
> same error.
>
> John
>
>
>
well poop.
On Wed, May 19, 2021 at 11:44 AM Chad Woitas
wrote:
>
> From the discord this morning:
> https://gist.github.com/joepie91/df80d8d36cd9d1bde46ba018af497409
>
> It seems the Freenode IRC future is in question. Does this affect the
> Linuxcnc IRC?
>
>
>
>
>
>
I just use whatever I have... Sometimes I peck tap when I am using a hand
tap. A good spiral tap or one the shoots the shavings out the end (don't
remember what they are called)
Like this one..
(you catch the shavings coming out the bottom..)
https://youtu.be/E2t0y2EsSO8?t=483
You get used
Really? I am remembering similar to Todd.. t thought rotary circular arc
wasn't implemented yet... (That would be exciting)
On Tue, Jun 29, 2021, 2:02 PM andy pugh wrote:
> On Tue, 29 Jun 2021 at 19:39, andrew beck
> wrote:
> >
> > Mate it would be so good to get this 9 axis tp working.
https://www.youtube.com/watch?v=ZVVffljc7kE
On Tue, Feb 2, 2021 at 9:46 AM Gene Heskett wrote:
> On Tuesday 02 February 2021 08:30:56 Sam Sokolik wrote:
>
> > I have looked at cycloidal drives and feel that they have too many
> > parts :)
> >
> > Gene
>
I have a cheap chuck that is held on with 3 cap head screws. My plan is to
make a disk that registers the center of the faceplate and the inside lip
of the chuck. - I don't remember the exact size.. about 4.5"
On Tue, Mar 23, 2021 at 9:48 PM John Dammeyer
wrote:
>
>
> >
http://electronicsam.com/images/greenmachine/IMG_20210329_220745.jpg
On Sun, Mar 28, 2021 at 5:17 PM Sam Sokolik wrote:
> have not done any destructive testing - but finally grabbed an oem650
> drive so I can have full 4 axis to play with. Seems to run the rotary
> atleas
^ thanks andy.
On Mon, Mar 29, 2021 at 10:23 PM Sam Sokolik wrote:
> http://electronicsam.com/images/greenmachine/IMG_20210329_220745.jpg
>
> On Sun, Mar 28, 2021 at 5:17 PM Sam Sokolik wrote:
>
>> have not done any destructive testing - but finally grabbed an oem650
>
have not done any destructive testing - but finally grabbed an oem650 drive
so I can have full 4 axis to play with. Seems to run the rotary atleast as
good as the leadshine.
http://electronicsam.com/images/greenmachine/IMG_20210328_165552.jpg
On Wed, Mar 24, 2021 at 8:36 AM Sam Sokolik wrote
I was making tap hats, drilling and tapping 4 holes for 4 grub screws to
> grab the flats of a tap. I did do a circular engrave once but was not
> impressed with the font and didn't waste any more material. So I can't
> offer any magic incantations, sorry.
>
> > > -Orig
I think you grabbed the old version - at the top of the post he has a link
to the end of the post... :)
https://forum.linuxcnc.org/20-g-code/27169-g-code-to-engrave-numbers-on-cylinders?start=10#116888
Maybe <_feed> wasn't used the way it is now in 2018 It now seems to be
a read only
Trying to use the index functionality is adding a layer of complexity you
don't need. Just and the 2 switches together and run them into the home
input.
On Sun, Apr 4, 2021, 10:44 AM Feral Engineer
wrote:
> That might be worth a try.
>
> Is it safe to load the build bot master repository on a
You need in the display section of the INI file
GEOMETRY = AXYZ
On Wed, Mar 31, 2021, 5:00 PM John Dammeyer wrote:
>
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> >
> http://electronicsam.com/images/greenmachine/Screenshot_2021-03-30_18-00-14.png
> >
> Alrigh
o the work to cut and out to
> retract. X moves along the graduations and AX move to draw the letters.
>
> So something else in the INI or HAL file is still confusing the system.
>
> John
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> >
> > You need in the
https://www.youtube.com/watch?v=JSDu81jjYFs
On Mon, Mar 29, 2021 at 10:23 PM Sam Sokolik wrote:
> ^ thanks andy.
>
> On Mon, Mar 29, 2021 at 10:23 PM Sam Sokolik wrote:
>
>> http://electronicsam.com/images/greenmachine/IMG_20210329_220745.jpg
>>
>> On Sun, Mar 2
A axis.
> John
>
> > -Original Message-
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: March-30-21 4:05 PM
> > To: Enhanced Machine Controller (EMC)
> > Subject: [Emc-users] Rotary axis preview (in axis interface)
> >
> > Has anyone done
This might make a bit more sense of what I am talking about..
http://electronicsam.com/images/greenmachine/Screenshot_2021-03-30_18-53-52.png
On Tue, Mar 30, 2021 at 6:51 PM Sam Sokolik wrote:
> it makes it so the bounding box doesn;t really make sense,,,
>
>
> http://electronicsa
it makes it so the bounding box doesn;t really make sense,,,
http://electronicsam.com/images/greenmachine/Screenshot_2021-03-30_18-50-41.png
On Tue, Mar 30, 2021 at 6:44 PM Sam Sokolik wrote:
>
> http://electronicsam.com/images/greenmachine/Screenshot_2021-03-30_18-00-
ect as the belt.
> > >
> > > I can imagine the mold is the square aluminum part with roughened up
> > > internal pocket. Then stretch a belt over a disk and place the disk in
> > the
> > > pocket leaving a ring then pour in the epoxy. With luck the epoxy
> b
another painful video
https://www.youtube.com/watch?v=U3e83H2mEyk
On Sat, Mar 13, 2021 at 8:40 PM Sam Sokolik wrote:
> Getting closer... I have to drill a bunch of holes in the face plate...
> also have to preload the wheel bearing (grind a bit from the center)
>
> http://elect
021 12:54:09 Gene Heskett wrote:
>
> > On Wednesday 10 March 2021 10:55:41 Sam Sokolik wrote:
> > > another update - at 1/2 step - the discrete resolution should be
> > > about 40,000 divisions per rotation. .009 deg.
> > >
> > > https://www.youtube.co
another update - at 1/2 step - the discrete resolution should be about
40,000 divisions per rotation. .009 deg.
https://www.youtube.com/watch?v=IdfKre6zpEY
On Thu, Feb 4, 2021 at 4:00 PM Sam Sokolik wrote:
> https://www.youtube.com/watch?v=ZVVffljc7kE
>
> On Tue, Feb 2, 2021 at 9:4
Just to clarify.. To rigid tap you been a b and z...
On Wed, Mar 10, 2021, 7:40 PM Ed wrote:
> On 3/10/21 2:08 PM, Karl Schmidt wrote:
> > I finally have all the hardware working - I built gear pickups + Z ..
> > Thanks to Jon Elson's example .. works well - thanks for sharing.
> >
> >
>
So - this didn't make it 6 hours with the steppers running 833rpm
(3000deg/min at the face plate) (forward reverse some positioning...)
http://electronicsam.com/images/greenmachine/IMG_20210317_073558.jpg
Now - I am sure it would last longer if it was run slower... The flex gear
now has the
So. interesting.. I just swapped the gears.. Before my ratio was
100:1. Input scale was 1600step/rev * 100 = 16/360 = 444.444
input scale.
Now I reversed the outside splines. I thought - wow - I must be losing
steps - but i would aways come back to zero. Finally though -
sage-----
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: March-21-21 11:46 AM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] Maybe a minimally printed harmonic drive?
> >
> > http://electronicsam.com/images/greenmachine/IMG_20210
http://electronicsam.com/images/greenmachine/IMG_20210321_133551.jpg
On Sat, Mar 20, 2021 at 2:44 PM Gene Heskett wrote:
> On Saturday 20 March 2021 14:52:51 Sam Sokolik wrote:
>
> > Currently I am using Vaseline... The black is plastic wear...
> >
> Humm, I've hear
the same
direction.
With the same set of outside spines swapped - the ratio is 100:1
I am sure Andy can explain it. It doesn't make sense to me.
Happy with runout... https://www.youtube.com/watch?v=eLyP2YwdstQ
sam
On Mon, Mar 22, 2021 at 12:58 AM John Dammeyer
wrote:
>
>
> > From:
Sam Sokolik wrote:
> 202,200 for the outside spline and the flex gear is 200. In this
> situation - the 202 tooth spline is stationary to the stepper. The 200
> tooth outside spline is mounted to the faceplate. In this layout - the
> ratio apears to be 101:1
>
> In this sit
ses the direction is the same? Like in real life?
>
> > -Original Message-
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: March-22-21 9:48 AM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] Maybe a minimally printed
t; John
>
> > -----Original Message-
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: March-22-21 6:19 AM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] Maybe a minimally printed harmonic drive?
> >
> > 202,200 for the out
d perhaps that material work better?
>
> John
>
> > -Original Message-----
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: March-19-21 8:03 AM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] Maybe a minimally printed harmonic
still running 18+ hours.
On Fri, Mar 19, 2021 at 2:03 PM Gene Heskett wrote:
> On Friday 19 March 2021 13:07:58 Sam Sokolik wrote:
>
> > I think you want it as hard as you can that still last a decent amount
> > of time.. Too rubbery and there will be more toque flex...
>
Exactly...
On Fri, Mar 19, 2021, 11:58 AM andy pugh wrote:
> On Fri, 19 Mar 2021 at 15:07, Sam Sokolik wrote:
> >
> > It isn't going to
> > be run like this in normal situations and you can always print more
> gears...
>
> I wouldn't imagine that printing a n
36 hours - For this purpose I think we are good.
http://electronicsam.com/images/greenmachine/IMG_20210320_072206.jpg
Next I think a destructive torque test and then maybe some actual
cutting... I need to finish the face plate first though.
On Fri, Mar 19, 2021 at 11:16 PM Chris Albertson
Currently I am using Vaseline... The black is plastic wear...
On Sat, Mar 20, 2021, 1:43 PM Gene Heskett wrote:
> On Saturday 20 March 2021 09:57:11 Sam Sokolik wrote:
>
> > 36 hours - For this purpose I think we are good.
> >
> > http://electronicsam
m it.
> >
> I've got a better idea, since LCNC can do a taper, taper the holder 2
> thou, drive it all the way in so its gripped good, bore it to half that
> taper, pull it out, turn the other face and repeat w/o touching the x
> dial. Just make sure all the burrs on the teeth fr
sorry to throw something else into the mix... I was getting following
errors without realtime errors on the pie because the default internet time
sync (timesyncd) sucked..
timesyncd vs ntp
https://www.youtube.com/watch?v=RDKaFJmB254
On Thu, Mar 4, 2021 at 11:37 AM John Dammeyer
wrote:
> > A
Small update...
https://youtu.be/LoxpqbGFl2g
On Mon, Mar 1, 2021, 10:56 AM Jon Elson wrote:
> On 03/01/2021 04:11 AM, andrew beck wrote:
> > This may interest people wanting to make 4th axis stuff
> >
> > https://youtu.be/-065J34xC5o
> >
> The output disc seems to be rotating in a jerky
https://youtu.be/VK4zgFTD2SA
On Mon, Feb 22, 2021 at 6:58 PM andrew beck
wrote:
> Hopefully I'll get into a big cycloidal drive for my Cnc mill soon all out
> of steel.
> I was thinking of making it 300mm dia maybe.
> I think most 5axis Cnc Mills use cycloidal drives if they don't just have
>
I think it is mainly that the 3d printed parts are not perfect.. I squared
the printer - but it still isn't 100%. I think they will be good enough
for this experiment though.
On Tue, Feb 23, 2021, 1:44 AM John Dammeyer wrote:
> > From: Sam Sokolik [mailto:samco...@gmail.com]
>
I have always used DD to create the images. You just have to make sure you
are writing the IMG not the ZIP Something like
sudo dd bs=4M if=~/Downloads/2020-05-01-linuxcnc-pi4.img of=/dev/mmcblk0
sam
On Wed, Apr 7, 2021 at 12:23 PM John Dammeyer
wrote:
> Even for the initial upgrading of
ok.. This is my take... This is why I like
linuxcnc>-a/d>- analog drive>-servo>-encoder>-linuxcnc...
The enables are controlled by motion. The power is controlled by estop.
The PID within linuxcnc has a lot of power - saturation, following error
and so on. It can detect most all faults a
Getting there
http://electronicsam.com/images/greenmachine/IMG_20210222_134102.jpg
http://electronicsam.com/images/greenmachine/IMG_20210222_134132.jpg
http://electronicsam.com/images/greenmachine/IMG_20210222_134145.jpg
On Mon, Feb 22, 2021 at 1:17 PM Chris Albertson
wrote:
> The Youtuber
I am going to ask a stuid question.. If you have a velocity run step gen
with pid. Couldn't you hook a limit3 between the pid and steghen.
Because the input is velocity instead of position - wouldn't the
acceleration limit in the limit3 be jerk instead of acceleration? I am
sure it doesn't
gt; www.patreon.com/theferalengineer
>
> On Tue, Aug 17, 2021, 9:36 PM Sam Sokolik wrote:
>
> > It would be the same setup... Just using servo amps.. Velocity out of
> > the pid - position back from the encoders.
> >
> > On Tue, Aug 17, 2021, 8:14 PM andrew beck
>
It would be the same setup... Just using servo amps.. Velocity out of
the pid - position back from the encoders.
On Tue, Aug 17, 2021, 8:14 PM andrew beck wrote:
> Not sure Sam.
>
> I have a 7i77 on this mill though also. So analog control
>
> On Wed, Aug 18, 2021, 12:51
Pretty sure you can do this where you set the home position at homing. (So
it doesn't move). The k homes to 38",34"',24 respectively.. it sets
those positions but doesn't then move anywhere else.
On Tue, Aug 31, 2021, 2:04 AM Marius wrote:
>
> On 2021/08/31 03:25, Leonardo Marsaglia wrote:
>
Small update
https://youtu.be/eW1GGI55Epc
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
Lol.. I certainly love the electrics part more than the machining most of
the time...
On Sun, Sep 19, 2021, 2:07 PM John Dammeyer wrote:
> Hi Sam,
> See below.
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> >
> > I have never used servo drives that close the lo
I have never used servo drives that close the loop.. I have always had
great luck with normal closed loop within linuxcnc. (cheap used amc
drives)
(Actually - I take that back - I have used the stmbl drives. so far only
for a spindle..)
This is of course using mesa analog interface hardware.
the amps then following errors are likely.
>
> John
>
>
>
> > -Original Message-
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> > Sent: September-19-21 12:11 PM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] DC Servo is
k you can quite easily have
> to micro-step a number of times before you see physical motion.
>
> None of that matters other than that you have shown your mechanics can
> handle 35 lb-ft which is all in all pretty cool !
>
> John
>
>
>
>
> > -Original Message-
Are these running single ended? Have you tried it with the spindle
running?
sam
On Sat, Aug 7, 2021 at 11:33 AM John Dammeyer
wrote:
> Hi Jon,
> > From: Jon Elson [mailto:el...@pico-systems.com]
> > On 8/4/21 1:53 AM, John Dammeyer wrote:
> > > In fact, a bit more work just now shows that the
ease?
>
> That was a link or 3 to some youtube videos by Sam Sokolik, and he has
> not shared the code AFAIK. Both square and hex wre demoed. Nice concept
> though.
>
> Cheers, Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
> soap, ballot
Tool geometry is important with the lower number of sides... ;)
On Mon, Sep 20, 2021 at 3:31 PM wrote:
> I couldn't think of the name. Thanks!
>
> -Original Message-
> From: Ralph Stirling
> Sent: September 20, 2021 2:53 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re:
this is what happens when you short out the op-amp with the
oscilloscope probe.. Good thing I have 2...
https://photos.app.goo.gl/wzKK3JSgVtdbBmfM6
On Mon, Dec 6, 2021 at 12:21 PM Sam Sokolik wrote:
> Part 2
>
> https://www.youtube.com/watch?v=xoHajQaHcOU
>
> On Thu, Dec 2, 2
Part 2
https://www.youtube.com/watch?v=xoHajQaHcOU
On Thu, Dec 2, 2021 at 12:19 AM Sam Sokolik wrote:
> Andy had sent these to me years ago and I finally figured out why I
> couldn't get them to work.
>
> (Granted the ones that pico systems and mesa sell are better.)
>
>
Hmm - seems we are making things a bit more complicated than they need to
be.. Why didn't the simple flex gear work ok? You need to make the
system with fine enough splines that the flexure is at a minimum...You
can lower the backlash to a minimum by applying a small amount of
pressure to
The Kearney and trecker
On Mon, Dec 27, 2021, 5:33 PM Feral Engineer
wrote:
> The pay walls, axis limits and markups on accessories are the reasons I
> avoided centroid.
>
> The thing I love most about Linuxcnc is the flexibility, reliability and
> yes, classicladder - or at least ladder based
wow - that was a walk down memory lane.. JohnK, JonE and Peter all posted
in those threads...
On Mon, Dec 27, 2021 at 7:16 PM Sam Sokolik wrote:
> Hmm - I mean - if you want to do a ton of reading - you can watch the
> journey... This was a big project because it originally was 2.
, Dec 27, 2021, 5:35 PM Sam Sokolik wrote:
> The Kearney and trecker
>
> On Mon, Dec 27, 2021, 5:33 PM Feral Engineer
> wrote:
>
>> The pay walls, axis limits and markups on accessories are the reasons I
>> avoided centroid.
>>
>> The thing I love
/vertical-mill-lathe-project-log/24-large-kearney-amp-trecker-hmc-conversion.html
On Mon, Dec 27, 2021 at 6:34 PM John Dammeyer
wrote:
> Web Link?
>
> > From: Sam Sokolik [mailto:samco...@gmail.com]
> >
> > Lol.. let me do that again...
> >
> > The Kearney a
Hmm.. so the realtime patches being integrated into Linux kernel is
worthless old technology? They are waisting their time? (This is
unrelated to LinuxCNC)
Currently LinuxCNC is being added to debian testing. It will soon be part
of the debian repository.
On Fri, Dec 24, 2021, 12:54 PM Chris
Because linuxcnc is so flexible - I actually did some testing between mach3
and linuxcnc when the new trajectory planner was being developed..
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?NewTrajectoryControl
This is using linuxcnc to sample the step/direction signals from mach and
linuxcnc to plot
This has been done at a bigger scale... (2 feedback loops)
https://web.archive.org/web/20160222165548/http://jmkasunich.com/cgi-bin/blosxom/shoptask/wichita-trip-02-20-08.html
http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Combining_Two_Feedback_Devices_On_One_Axis
On Mon, Jan 3, 2022, 8:42 PM Chris
day, January 3, 2022 11:00:54 PM EST Sam Sokolik wrote:
> > I think this just would work with linuxcnc and scales + motor encoders.
> > WIth the scales using only I in the 2 pid loops - it would be constantly
> > correcting backlash to keep the position.. (that is what the G did)
>
I think this just would work with linuxcnc and scales + motor encoders.
WIth the scales using only I in the 2 pid loops - it would be constantly
correcting backlash to keep the position.. (that is what the G did)
sam
On Mon, Jan 3, 2022 at 9:50 PM Chris Albertson
wrote:
> I think his method
Did you watch this video til the end? I time stamped it.
https://youtu.be/eW1GGI55Epc?t=878
sam
On Mon, Dec 20, 2021 at 12:26 PM Chris Albertson
wrote:
> On Fri, Dec 17, 2021 at 6:05 PM Sam Sokolik wrote:
>
> > Hmm - seems we are making things a bit more complicated th
It can be
> done but not if the plastic parts flex.
>
> On Mon, Dec 20, 2021 at 10:39 AM Sam Sokolik wrote:
>
> > Did you watch this video til the end? I time stamped it.
> >
> > https://youtu.be/eW1GGI55Epc?t=878
> >
> > sam
> >
> >
> >
> &
601 - 700 of 843 matches
Mail list logo
