Set Extruder Postion with G92 E

CR3D

I have a question. Why is it not possible to set the extruder position with G92 E???

Again and again we have the issue that after a purge and a long retract we are not given any filament at the start of printing. We would like to reset the position manually, but I have the impression that the command G92 E is not setting the extruder axis for both RRF 2.05.1 and RRF 3.3.

It works perfectly with the XYZ axes.

Is there a reason for this?

jay_s_uk

@cr3d do you have a tool selected when you're trying to use it?

edit, just tried with a tool selected in both M82 and M83 mode and the drive position for E doesn't change for me either

Phaedrux

Sounds like this?

https://forum.duet3d.com/topic/16033/g92-e-number-doesn-t-update-dwc-or-om

jay_s_uk

@phaedrux could be. I did try it on an SBC based printer running 3.3.0. I'll try on a standalone

CR3D

@jay_s_uk

I tried it with RRF 2.05.1 and RRF 3.3 ... it doesn´t work with both... Also with M83 and M82

@Phaedrux

What could be done? I couldn´t find a solution at this post...

Phaedrux

I think it's just a display issue rather than it not resetting the actual position. Otherwise absolute extrusion wouldn't work. Check the actual extruder position with M114

jay_s_uk

@phaedrux It displays the extruder location correctly during a print.
What is more odd is the output of M114

m114
X:121.263 Y:143.324 Z:0.300 E:0.000 E0:896.7 Count 10462 12499 120 Machine 121.263 143.324 0.300 Bed comp 0.000

I only have 1 extruder configured....