Search found 33 matches

by AlanKilian
Fri Feb 24, 2017 11:20 am
Forum: Troubleshooting
Topic: [Solved] G92 E0 causes a lot of extrusion.
Replies: 31
Views: 8353

Re: G92 E0 causes a lot of extrusion.

OK, I've got a one-line fix to Printer.cpp so there will be no extruder operation on homing. G28 X0 first moves to X=0 and then homes in Z G28 Y0 first moves to Y=0 and then homes in Z G28 Z0 (or G28) moves directly vertical as it homes in Z None of these extrude filament now. diff --git a/Repetier ...
by AlanKilian
Fri Feb 24, 2017 9:07 am
Forum: Troubleshooting
Topic: [Solved] G92 E0 causes a lot of extrusion.
Replies: 31
Views: 8353

Re: G92 E0 causes a lot of extrusion.

G28 X0 under certain circumstances causes the extruder to run and pump filament out the nozzle.
It should not run the extruder.
by AlanKilian
Fri Feb 24, 2017 8:20 am
Forum: Troubleshooting
Topic: [Solved] G92 E0 causes a lot of extrusion.
Replies: 31
Views: 8353

Re: G92 E0 causes a lot of extrusion.

Cool. Just a G28 does not exhibit the problem.

I'll debug the Arduino code and see if I can push a fix to GitHub.
by AlanKilian
Fri Feb 24, 2017 7:27 am
Forum: Troubleshooting
Topic: [Solved] G92 E0 causes a lot of extrusion.
Replies: 31
Views: 8353

Re: G92 E0 causes a lot of extrusion.

Here, I'll go through your example to illustrate, red is the gcode being processed, green is what's actually happening: g0 x0 y0 z50 ; Interpret Gcode, queue move command Printer gets move from queue and starts moving g1 x100 e10 f1000 ; Interpret Gcode, queue move command Printer is still doing fi...
by AlanKilian
Fri Feb 24, 2017 7:24 am
Forum: Troubleshooting
Topic: [Solved] G92 E0 causes a lot of extrusion.
Replies: 31
Views: 8353

Re: G92 E0 causes a lot of extrusion.

Jrjones wrote:Why are you homing just the X axis on a delta machine?
I would remove the X0 from the G28 command.


Yes, this is the default end G code for the Slic3r slicer.
I changed it to a G28 Z0 and the problem went away.
by AlanKilian
Fri Feb 24, 2017 7:19 am
Forum: Troubleshooting
Topic: [Solved] G92 E0 causes a lot of extrusion.
Replies: 31
Views: 8353

Re: G92 E0 causes a lot of extrusion.

I'll try your test by adding a G4 P0 and post my results. If a G1 followed by a G92 requires a G4 p0 in between them, the Slic3r is producing incorrect G code. Here's a slice of G code produced by Slic3r. Is it really incorrect? G1 X30.000 Y26.654 E36.69181 G1 X-30.000 Y26.654 E41.58977 G1 X-32.190 ...
by AlanKilian
Thu Feb 23, 2017 3:22 pm
Forum: Troubleshooting
Topic: [Solved] G92 E0 causes a lot of extrusion.
Replies: 31
Views: 8353

Re: G92 E0 causes a lot of extrusion.

OK, I found out it's the G92 E0 combined with a G28 X0 that causes the extrusion. Could you try this? Set your extruder temp to whatever filament you have and wait for it to heat up. g0 x0 y0 z50 ; Move near the bed. g1 x100 e10 f1000 ; Move to the right and extrude some filament g92 e0 ; Set Extrud...
by AlanKilian
Wed Feb 22, 2017 12:42 pm
Forum: Troubleshooting
Topic: [Solved] G92 E0 causes a lot of extrusion.
Replies: 31
Views: 8353

[Solved] G92 E0 causes a lot of extrusion.

I'm getting a big blob at the end of each layer caused by the G92 E0 command and I'm confused. I've attached a .gcode file for a 20mm flat plate and I get a blob. If I comment out the G92 E0 at the end, I do not get the blob. Can someone help me understand this? Rostock Max V3 FW Version 0.92.2 Octo...

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