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mjoconr wrote:

There is an issue with the ISO for Intel hardware, the package "raspi-firmware" is installed, suggest everyone remove this before running dist-upgrade.

Blame Debian.

We suppress it but if you do an upgrade it comes back. A known bug in Debian 12.1 initial release of bookworm, fixed in 12.2 but not in the Debian builder. Very poor form I think.

@andypugh: I checked the coupler, didn't observe any slipping. I too believe that its unlikely to be some encoder issue.

@PCW: I tested with encoder filter on. Still facing the same issue.

My mechanical setup is,

Servo Motor -> Coupler -> BK15 (Two angular contact ball bearing (Back tot Back configuration) with a shim spacer in between ) -> Ball screw -> Ball nut -> Deep groove ball bearing

I doubt whether the issue is due to the ball bearing. I have an electronics background and am just getting started in the mechanical field.
 

avec plaisir 
comment je peux te contacter?

This is a limitation of python/linuxcnc.
The properties signal is produced in the qt_graphics widget.
The receiving widget must be in the same python instance as the qt_graphics widget.
A stand alone panel is a different instance of python then the main screen.

You could add a qt_graphics widget to your stand alone panel.
Or possibly could try using ZMQ messages with a customized handlerfile.

Hi, can it be run on Linux?

Ok try the latest please.

Yes, this definitely seems like a bug.

I can see the cut starting at a different place at different spindle
speeds due to the time needed to get synched to the spindle
varying at different spindle speeds, _but_ once synced and cutting,
the threads should be identical regardless of spindle speed...

(as they are in a normal manual lathe than maintains strict gearing
between the spindle angular position and Z offset)

Its steel actually.

Made it. Not hard!

Have a few of them in the shop. Made out of solid 2" (50mm) plate offcuts from the scrap dealer. I had them blanchard ground. Just mag drilled and tapped the M16 holes. Cheap and flat fixture tables. I've built some very straight motorbike and push bike frames on them over the years.

Thanks for the heads up on the switches. I'll keep this in mind.