On Friday 17 July 2020 00:06:25 John Dammeyer wrote:
> Quick addendum to this subject. I found the parameter for the
> Bergerda AC Servo that dictates acceleration with the 0V-10V input.
> I've changed it so it takes 1.8 seconds to go from 3000 RPM to 0 RPM.
> Now with an S3000 M3 and then
That's a point in favor for discreet components and standard ICs over
special/custom ICs. Very little worry about having to alter a design or things
becoming unfixable due to a fancy chip being discontinued.
I forget how many $K I was quoted from a manufacturer to pop out one new late
90's
It's really put a pinch on the barbecue restaurant I'd like to go to again if I
ever get back to the southeast. Sticky Fingers Ribhouse had been up to 11 or 12
locations but after the 2009 recession and now COVID-19 they're down to three.
Any of y'all near Chattanooga, Greenville, or
some close up-ish with slow mo...
https://youtu.be/_S_bGAuTN0s
On Tue, Jul 14, 2020 at 3:13 AM andy pugh wrote:
> (Off topic, but interesting)
>
> On Tue, 14 Jul 2020 at 02:11, Gregg Eshelman via Emc-users
> wrote:
> >
> > Used to be mechanical drive attachments for some lathes to move the
Quick addendum to this subject. I found the parameter for the Bergerda AC
Servo that dictates acceleration with the 0V-10V input. I've changed it so it
takes 1.8 seconds to go from 3000 RPM to 0 RPM. Now with an S3000 M3 and then
an M5 it slows down much better. And at the other end for
On Thursday 16 July 2020 23:17:00 Thaddeus Waldner wrote:
> It is unlikely to be nylon simply because it would be a poor choice
> for a “first print.”
>
> Nylon is highly hygroscopic and needs to be be dried before printing.
> In some environments it will absorb enough moisture in a day to make
>
It is unlikely to be nylon simply because it would be a poor choice for a
“first print.”
Nylon is highly hygroscopic and needs to be be dried before printing. In some
environments it will absorb enough moisture in a day to make it unprintable.
It also has a thermal expansion coefficient that
> From: andy pugh [mailto:bodge...@gmail.com]
> On Thu, 16 Jul 2020 at 02:44, John Dammeyer wrote:
>
> > The stuff that uses the limit2 was cut and pasted from a web page. I
> > never expected it to work first time.
> ...
> > net spindle-cmd <= motion.spindle-speed-out => spindle-ramp.in
>
On Thursday 16 July 2020 20:25:40 Frank Tkalcevic wrote:
> It took me a while to find the right settings for my printer - in fact
> it was more about finding a decent priced, decent quality filament.
> (eSun seems to be the best in my neck of the woods).
>
Not seen any eSun here. I bought two
It took me a while to find the right settings for my printer - in fact it
was more about finding a decent priced, decent quality filament. (eSun seems
to be the best in my neck of the woods).
Hair can be removed with a quick blast with a gas torch, although I'm
surprised this is an issue as the
On Thursday 16 July 2020 18:21:28 Frank Tkalcevic wrote:
> > So what I'm asking is, has anyone printed a pulley
> > that fits & works with these smaller, finer toothed belts?
>
> I use GT 2mm, 20 and 40 tooth pulleys on my robot arm. Printed on a
> Prusa i3 Mk2.5, 0.4mm nozzle, PLA. PLA is
> So what I'm asking is, has anyone printed a pulley
> that fits & works with these smaller, finer toothed belts?
I use GT 2mm, 20 and 40 tooth pulleys on my robot arm. Printed on a Prusa
i3 Mk2.5, 0.4mm nozzle, PLA. PLA is fine - other plastics may have
shrinkage problems.
PWM timers in Micro controller trigger interrupt and write value from shadow
registers periodically. With this method there may be jitter from higher
priority interrupts, maybe a similar technique could be used?
> On Thu, 16 Jul 2020 at 15:44, Thomas J Powderly wrote:
>
> > they say they
I don't know why the link didn't come through. See "samcoinc" YouTube or this
sight.
Scott
On Thursday, July 16, 2020, 2:54:52 PM CDT, Stuart Stevenson
wrote:
The blue Cincinnati at MPM with LinuxCNC had a nameplate electric
requirement of 125 amps @ 480. We measured it frequently
The blue Cincinnati at MPM with LinuxCNC had a nameplate electric
requirement of 125 amps @ 480. We measured it frequently for a while after
we first got it. I never saw it draw more than 15 amps. Just because the
plate says it has to have X amount of electric service doesn't mean it will
pull
On Thursday 16 July 2020 09:55:36 Gene Heskett wrote:
> On Thursday 16 July 2020 08:19:26 Gene Heskett wrote:
> > Greets all;
> >
> > How fine a tooth pattern have you managed to use as pulleys, made by
> > a 3d printer?
> >
> > I've got some of the motors that were used in the early 5.25" floppy
On Thursday 16 July 2020 12:04:49 John Dammeyer wrote:
> > -Original Message-
> > From: Thomas J Powderly [mailto:tjt...@gmail.com]
> > Sent: July-16-20 7:42 AM
> > To: emc-users@lists.sourceforge.net
> > Subject: [Emc-users] usb lpt with anti-jitter
> >
> > theres a group in poland that
This is the same control the Yaskawa drives may be newer. Matsuura linuxcnc
conversion.. axis moving, spindle hooked up
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Matsuura linuxcnc conversion.. axis moving, spindle hooked up
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Sam has done this.
It looks clean and you do want the head
I know Linuxcnc has G-codes for settings to allow it to use either relative or
absolute arc center coordinates (G90.1,G91.1). Anyone know if is possible to
configure a Fanuc machine to use absolute arc centers ala G90.1 or is a Fanuc
control stuck with only using relative I,J,K positions? If
On Thu, 16 Jul 2020 at 15:44, Thomas J Powderly wrote:
> they say they address the latency issues with special tech
"The output is buffered, which allows for stable operation of the motors.
The readout of the input states is performed after each input change,
not more frequently than every
On Thu, 16 Jul 2020 at 17:08, John Dammeyer wrote:
> And actually now that I think about it is there any reason the regular
> parallel port can't be used along side a MESA 7i92H? To provide a third port?
None at all. You could even hook a Pico PPMC to the parport and run it
alongside the
On 07/16/2020 10:11 AM, lloyd wilson wrote:
I've recently acquired another controller transplant
candidate, a mid/late 80s Bridgeport 520 vmc. The old
girl uses Fanuc DC (yellow cap) axis servos and drives,
spindle is also Fanuc. I hope to keep the Fanuc servo
drives, but so far, I haven't
> -Original Message-
> From: Thomas J Powderly [mailto:tjt...@gmail.com]
> Sent: July-16-20 7:42 AM
> To: emc-users@lists.sourceforge.net
> Subject: [Emc-users] usb lpt with anti-jitter
>
> theres a group in poland that have a usb to lpt product for linuxcnc
>
>
On Thu, 16 Jul 2020 at 13:35, Todd Zuercher wrote:
> For those who couldn't open the original link the same machine is also
> advertised on Ebay (but at a higher price on the seller's home site it is
> $2500).
For $10,000 I would have to think long and hard. For $2500, if I had
the space, it
I've recently acquired another controller transplant candidate, a
mid/late 80s Bridgeport 520 vmc. The old girl uses Fanuc DC (yellow
cap) axis servos and drives, spindle is also Fanuc. I hope to keep the
Fanuc servo drives, but so far, I haven't been able to locate any
documents that spec
On Thursday 16 July 2020 10:12:17 Thomas J Powderly wrote:
> Gene
>
> does this
>
> On 7/16/20 8:55 PM, Gene Heskett wrote:
> > On Thursday 16 July 2020 08:19:26 Gene Heskett wrote:
> >> Greets all;
>
> --snip---
>
> for the enders simple mind.
>
> --snip---
>
> >> Cheers, Gene Heskett
>
On 07/16/2020 07:19 AM, Todd Zuercher wrote:
No it doesn't' have a Fanuc control, it is a Yaznac with all Yaskawa drives and
motors.
Excellent! Yaskawa makes documentation on older products
available. There's a good chance it uses analog velocity
commands (+/- 10 V). If so, all the
On 07/16/2020 12:39 AM, Bari wrote:
The pandemic has killed lots of businesses. 1 out of 4
businesses near me are closing for good. I expect to see
deals for the next year at least on just about everything.
An auction of electronic assembly gear just closed in
Austin, TX yesterday. I got
On 07/15/2020 11:32 PM, Thaddeus Waldner wrote:
Some of those large, high-end Japanese names have temperature sensors installed
throughout the frame, which they use to compensate for thermal expansion.
I doubt this machine has that, but it does look like it has
a spindle cooler hanging on
theres a group in poland that have a usb to lpt product for linuxcnc
http://machmaker.pl/index.php?p=1_13
they say they address the latency issues with special tech
"""
It uses special mechanisms that allow stable and reliable work even with
a computer that has high delay values (Jitter) up
Ive bought 2 machines from HGR.
You have to go there and look.( its worth it to see the robot graveyard)
I have always been allowed tp open cabinets and shift around stuff on my
own.
No tools allowed untill you agree to buy.
I was able to leave parts I didnt want ( controls, pumps. tanks ),
Gene
does this
On 7/16/20 8:55 PM, Gene Heskett wrote:
On Thursday 16 July 2020 08:19:26 Gene Heskett wrote:
Greets all;
--snip---
for the enders simple mind.
--snip---
Cheers, Gene Heskett
refer to a lack of loops, o-words, python?
interesting thought for a very repetive
On Thursday 16 July 2020 08:19:26 Gene Heskett wrote:
> Greets all;
>
> How fine a tooth pattern have you managed to use as pulleys, made by a
> 3d printer?
>
> I've got some of the motors that were used in the early 5.25" floppy
> drives, 6 wire 12 volt. and all those leftover drivers from
For those not familiar with the seller HGR, they are pretty much a giant
industrial junk yard. They are the ones who go to all of the all the factory
closing auctions and buy every thing that no one else bids on. Their property
is an enormous mostly abandoned warehouse near Cleavland, Oh.
For those who couldn't open the original link the same machine is also
advertised on Ebay (but at a higher price on the seller's home site it is
$2500).
https://www.ebay.com/itm/MORI-SEIKI-MV45-40-MORI-SEIKI-MV45-40-CNC-VMC-18-x-47-0120091/264623167442?hash=item3d9cc517d2:g:svEAAOSwh~peOZde
No it doesn't' have a Fanuc control, it is a Yaznac with all Yaskawa drives and
motors.
Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street
Dalton, Ohio 44618
Phone: (330)828-2105ext. 2031
-Original Message-
From: Jon Elson
Sent: Wednesday, July 15, 2020 5:46 PM
To: Enhanced Machine
Greets all;
How fine a tooth pattern have you managed to use as pulleys, made by a 3d
printer?
I've got some of the motors that were used in the early 5.25" floppy
drives, 6 wire 12 volt. and all those leftover drivers from junking the
ones that came with the 6040 mill and the so-called 24
On Thu, 16 Jul 2020 at 02:44, John Dammeyer wrote:
> The stuff that uses the limit2 was cut and pasted from a web page. I never
> expected it to work first time.
...
> net spindle-cmd <= motion.spindle-speed-out => spindle-ramp.in
...
> The error message is that motion.spinde-speed-out is
> On Thursday 16 July 2020 01:39:04 Bari wrote:
>
> > On 7/16/20 12:18 AM, Gene Heskett wrote:
> > > But all that lumber padding under the head, supporting it because
> > > the drive isn't, its not possible to see the spindle. IMO that needs
> > > to be subject to an on-site inspection. That
> -Original Message-
> From: andrew beck [mailto:andrewbeck0...@gmail.com]
> Sent: July-15-20 10:03 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Retrofit Candidate?
>
> John do you have any details on the new stumble drives?
>
As far as I know they are still
On Thursday 16 July 2020 01:39:04 Bari wrote:
> On 7/16/20 12:18 AM, Gene Heskett wrote:
> > But all that lumber padding under the head, supporting it because
> > the drive isn't, its not possible to see the spindle. IMO that needs
> > to be subject to an on-site inspection. That also could hide
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