On Sun, Dec 27, 2020 at 7:49 PM John Dammeyer
wrote:
>
> Anyway, in 6 hours I'll know if the PLA version was worth the effort.
Let us know. I know it will lack the high precision of a $100 metal
pulley but you don't notice it in use.
PLA is tough. As a joke a while back I 3D printed a
On Sun, Dec 27, 2020 at 2:15 PM Andy Pugh wrote:
> Though, machining is faster for me. But not for most, I suspect.
How would you cut the tooth profile? What about a curved profile? What if
you need flanges on the pulley? Maybe you could use a tiny ball-endmill
on a four axis milling
Anno domini 2020 Sun, 27 Dec 19:46:34 -0800
John Dammeyer scripsit:
> I think it depends on the plastic. A year or so ago we tried a bunch of
> different materials for an iPhone holder belt clip. No luck. The plastic
> wasn't as strong as the original injection molded material that broke.
Hey everyone just read all the replies.
Definitely food for thought.
Andy I currently do almost exactly what you do with the e stop in my mill.
I'll do something similar with the enables tying in a relay to bypass them
with the e stop and then letting linuxcnc know about it
On Sun, Dec 27,
Le lun. 28 déc. 2020 à 00:27, andy pugh a écrit :
> On Sun, 27 Dec 2020 at 22:23, Jérémie Tarot wrote:
>
> >
> > I think there is an order of populated PCBs in progress.
> > >
> >
> > Oh really? Please tell me where should I put my money to join the happy
> > few!
>
>
> I saw it on the
On Sun, 27 Dec 2020 at 22:23, Jérémie Tarot wrote:
>
> I think there is an order of populated PCBs in progress.
> >
>
> Oh really? Please tell me where should I put my money to join the happy
> few!
I saw it on the gitter.
I thought about a Kickstarter when I had my batch of 50 made. But
Le dim. 27 déc. 2020 à 23:08, Andy Pugh a écrit :
>
>
> > On 27 Dec 2020, at 21:51, Andrew wrote:
> >
> >
> > Suppose I'd like to get a few STMBLs. Have they resolved the obsolete
> IRAMS
> > problem?
>
> I think it’s complicated.
What's most complicated is project communication! It's an
> On 27 Dec 2020, at 22:02, Chris Albertson wrote:
>
> You really CAN print pulley teeth. You might argue "plastic is not strong
> enough". If so then you will have a bigger problem with the rubber belt
> teeth not being strong enough.
Absolutely. 3D print is very comparable in strength
> On 27 Dec 2020, at 21:51, Andrew wrote:
>
>
> Suppose I'd like to get a few STMBLs. Have they resolved the obsolete IRAMS
> problem?
I think it’s complicated. There is a design using something else, but it hasn’t
been released.
And, another user has found a supplier with sizeable stocks.
You really CAN print pulley teeth. You might argue "plastic is not strong
enough". If so then you will have a bigger problem with the rubber belt
teeth not being strong enough. All the stress is in the hub. So make
that from good quality steel.I've tested these for hours. They
нд, 27 груд. 2020 о 23:32 Andy Pugh пише:
> > Can STMBL pass the encoder value to LinuxCNC?
>
> Yes, and very conveniently as a Mesa smart-serial device.
>
That's reasonable. But the doc says it supports sserial input, so I was not
sure.
>
> In fact the STMBL low-voltage board probably has a
> On 27 Dec 2020, at 21:10, Andrew wrote:
>
>
> Can STMBL pass the encoder value to LinuxCNC?
Yes, and very conveniently as a Mesa smart-serial device.
In fact the STMBL low-voltage board probably has a role as an encoder interface
board, ignoring the power driver board.
Is there some kind of standard naming scheme for these devices?
___
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Emc-users@lists.sourceforge.net
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Unfortunately although the mill table pivots I didn't buy the version with the
horizontal drive. Full intentions to add something in the future (Project
#42). And I still don't have the Harmonic Drive properly mounted or for that
matter a face plate for it.
It never ends...
John
>
нд, 27 груд. 2020 о 23:00 Andy Pugh пише:
>
> I run my B variant with an STMBL drive.
> The STMBL docs say that Hiperface _could_ be supported but needs a module
> to be written.
>
> They also say EnDat is almost supported... but I'm currently looking for
another drive to support EnDat. Yaskawa
> On 27 Dec 2020, at 20:47, Andrew wrote:
>
> M1024 code is Multi-turn absolute, HIPERFACE® protocol.
> I'm not sure how to read them to LinuxCNC.
I run my B variant with an STMBL drive.
The STMBL docs say that Hiperface _could_ be supported but needs a module to be
written.
> On 27 Dec 2020, at 20:39, John Dammeyer wrote:
>
> So I think like Andy I'll have to make myself a cutter for the tooth profile
I didn’t make it. I found it on eBay.
Making a hob is still an achievement unattained.
https://youtu.be/ltmZrDrt6pQ
нд, 27 груд. 2020 о 22:12 andy pugh пише:
> > Another couple of harmonic actuators 32 and 40 size
> > https://www.ebay.com/itm/313352791688
> > https://www.ebay.com/itm/313352797664
>
> Note that these are the "C" variant so have a less convenient encoder
> than the B variant.
>
> (The earlier B
> On 27 Dec 2020, at 20:38, Jérémie Tarot wrote:
>
> What makes absolute encoders less convenient? I'd have thought the opposite
> as the avoid homing?
Well, they are better _if_ you can figure out how to get the data into
LinuxCNC.
___
There's only one issue with buying timing pulleys. It appears most of the
stock sizes are limited to 60T. So I'd need a 15T pulley on the drive side to
get my 4:1.
And it's really all about size. To get a decent hold on the 19mm motor shaft
(no threaded end hole) and to stay within my max
Le dim. 27 déc. 2020 à 21:12, andy pugh a écrit :
>
> Note that these are the "C" variant so have a less convenient encoder
> than the B variant.
>
> (The earlier B variant has quadrature + Hall sensors, the C uses an
> absolute encoder)
>
What makes absolute encoders less convenient? I'd have
On Sun, 27 Dec 2020 at 20:01, Andrew wrote:
>
> Another couple of harmonic actuators 32 and 40 size
> https://www.ebay.com/itm/313352791688
> https://www.ebay.com/itm/313352797664
Note that these are the "C" variant so have a less convenient encoder
than the B variant.
(The earlier B variant
Another couple of harmonic actuators 32 and 40 size
https://www.ebay.com/itm/313352791688
https://www.ebay.com/itm/313352797664
Look pretty nice
вт, 1 вер. 2020 о 14:17 andy pugh пише:
> https://www.ebay.co.uk/itm/164363134065
>
> It looks to have had a hard life, but there are others on there
On Sunday 27 December 2020 13:42:57 andy pugh wrote:
> On Sun, 27 Dec 2020 at 18:31, Gene Heskett
wrote:
> > pd054=0 which is supposed to be an analog voltage from 0 to 10
> > volts, representing 0 to 400 hz from the invertor.
> >
> > But the output is actually a 10v p-p pwm corresponding to
On Sun, 27 Dec 2020 at 18:31, Gene Heskett wrote:
> pd054=0 which is supposed to be an analog voltage from 0 to 10 volts,
> representing 0 to 400 hz from the invertor.
>
> But the output is actually a 10v p-p pwm corresponding to the duty cycle
> to get that % of a pwm.
Which would presumably
On Sunday 27 December 2020 08:26:47 Gene Heskett wrote:
> On Sunday 27 December 2020 07:46:04 andy pugh wrote:
> > On Sun, 27 Dec 2020 at 06:10, Gene Heskett
>
> wrote:
> > > After reading several different versions of the manual I've found
> > > online, and killing another tree for hard copy
On Sunday 27 December 2020 07:46:04 andy pugh wrote:
> On Sun, 27 Dec 2020 at 06:10, Gene Heskett
wrote:
> > After reading several different versions of the manual I've found
> > online, and killing another tree for hard copy BIG enough to read,
> > it becomes obvious that the common point
On Sun, 27 Dec 2020 at 06:10, Gene Heskett wrote:
> After reading several different versions of the manual I've found online,
> and killing another tree for hard copy BIG enough to read, it becomes
> obvious that the common point reference for the speed input AND the
> MultiFunction terminal
Le dim. 6 déc. 2020 à 16:41, Ralph Stirling
a écrit :
> In commercial cnc turning centers, this is called "C axis". Unfortunately
> the Mori Seiki in my lab doesn't have C axis, so I can't tell you how the G
> code switches between spindle velocity and orientation, but I suspect it is
> as Andy
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