M83 (relative extrusion) - Allow Zeroing of E Distances

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wepollock
Printmaster!
Posts: 180
Joined: Wed Apr 19, 2017 7:18 pm

M83 (relative extrusion) - Allow Zeroing of E Distances

Postby wepollock » Tue Mar 20, 2018 2:39 pm

---Just to become more knowledgeable I am crawling through the duet parameter files as a precursor to looking at https://configurator.reprapfirmware.org/


I just confirmed that my slicer (simplify3d) is putting M83 into the print job preamble to enable relative extrusion.
I don't think I need to do anything else? Correct?

One thing I did notice that the slicer did not have as illustrated in the sublimelayers blog post below;
"Allow zeroing of extrusion distances" checked;

I don't think allow zeroing of extrusion distances is needed with M83 on. Is that observation correct?


http://www.sublimelayers.com/2017/10/to-extruder-relative-or-not-to-extrude.html

Slicer Preamble


G90
M83
M106 S255
G4 P500
M106 S0
M140 S60
M190 S60
M104 S200 T0
M109 S200 T0
G28 ; home all
G1 E-3.2000 F500
G1 Z1.115 F1200
; process Process1
; layer 1, Z = 0.315
T0
; tool H0.350 W0.550
; skirt
G1 X62.825 Y-74.675 F9000
G1 Z0.315 F1200
G1 E3.2000 F150
G1 X62.825 Y88.493 E11.4916 F1900

dc42
Printmaster!
Posts: 422
Joined: Mon Mar 07, 2016 10:17 am

Re: M83 (relative extrusion) - Allow Zeroing of E Distances

Postby dc42 » Tue Mar 20, 2018 4:45 pm

Correct, zeroing of extrusion distance only applies when you use absolute extruder coordinates.


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