shapenerd
Posts: 1
Joined: Tue May 21, 2019 12:07 am

Retraction bugged 4.1.1 & 4.1.2

Tue May 21, 2019 12:15 am

When using Ooze Control - Retraction, S3D Fails to detract in GCODE, using the 'Extra Restart Distance' Literally and not additionally:

Retraction Distance: 0.8
Extra Restart Distance: 0.0

GCODE:
G92 E0.0000
G1 E-0.8000 F2100
G1 0.200 F10000;
; feature skirt
; tool H0.200 W0.450
G1 Z0.600 F3600
G1 X127.293 Y145.741 F9000
G1 Z0.200 F3600
G1 E0.0000 F2100 <------ Expected: G1 E0.8000 F2100
G92 E0.0000

Retraction Distance: 0.8
Extra Restart Distance: 0.8
GCODE:
G92 E0.0000
G1 E-0.8000 F2100
G1 0.200 F10000;
; feature skirt
; tool H0.200 W0.450
G1 Z0.600 F3600
G1 X127.293 Y145.741 F9000
G1 Z0.200 F3600
G1 E0.8000 F2100 <------ Expected: G1 E1.6000 F2100
G92 E0.0000


Not Happy. Can't imagine how many other people are having random under-extrusions during a layer change or any kind of retraction.

Porcupineshiver
Posts: 9
Joined: Tue Nov 27, 2018 2:38 pm

Re: Retraction bugged 4.1.1 & 4.1.2

Wed May 29, 2019 10:19 am

This is doing exactly what it's supposed to, as it's programmed in absolute, not incremental.

G92 E0.0000 ' Zeroes out the extruder, telling the machine that wherever it's at, that's now E0
G1 E-0.8000 F2100 'Retracts it .8mm
G1 0.200 F10000;
; feature skirt
; tool H0.200 W0.450
G1 Z0.600 F3600
G1 X127.293 Y145.741 F9000
G1 Z0.200 F3600
G1 E0.0000 F2100 <------ Expected: G1 E0.8000 F2100 'Moves it back to zero. Going to .8 would be an extra restart distance of .8
G92 E0.0000 'Tells the machine that the current E position is now zero - it seems redundant from a hand programmed aspect because it's already there, but for automation sake if it were a positive number as in extra restart distance, this would be the new zero.

Return to “Troubleshooting and Bug Reports”