I can't print a small object with Duet3 +1LC

psyblue · 15 Apr 2021, 10:58

Attached file is a small-spacer-part. (8 x 20mm cylinder)

I have several printers.
One of them is Duet2 Ethernet + Duex5 + RRF3.2.2
The other is Duet3 6HC + 1LC + RRF3.2.2

Duet2 board can print it perfect.
Duet3 + 1LC does not print properly.
It seems that the 1LC Extruder ignores the movement of the short filament as '0' through several experiments.

It is not a motor torque problem. When I disassemble the extruder and observe the extruder motor, it hardly rotates unlike duet2.

Even printers with Duet3 + 1LC seem to print normally when printing large obects. But, looking it closely, thin-walled-infills were not printed properly.

Please comment on what I need.

If you have 1LC-Extruder-printer, please print the attached STL. (It's very small, - 20x8mm cylinder) And I hope you would share the result.

Thanks.

Argo · 15 Apr 2021, 11:09

You could try the latest beta build posted by dc42:
https://forum.duet3d.com/post/225741

If that does not help generally a M122 report directly after the problem occurs might help the devs to analyse the problem.

psyblue · 17 Apr 2021, 04:42

@argo

Thank you very much for your kind comment. I'm reading the thread you gave me.

psyblue · 25 May 2021, 04:27

@psyblue

I leave the results for those who suffer from the same symptoms as me.
This issue was resolved in RRF 3.3

dc42 · 25 May 2021, 06:18

@psyblue thanks for confirming!