Volumetric extrusion not working
-
I just installed my DuetWifi (firmware 1.16) on a delta with a diamond 3color mix head and I can not get volumetric extrusion to work (I get over extrusion more then 2x). I am using 'M404 N1.75' to enable volumetric extrusion in firmware. I also tried 1.17 same results.
Prints great if I disable volumetric extrusion in the slicer and firmware (M404 N0), using linear extrusion. No other setting changed.
I have a single driver for extruder #3 hooked to E2 outputs.
Is there a additional command to enable volumetric extrusion? Anybody else have this problem? -
RepRapFirmware doesn't support volumetric extrusion. It would be easy enough to implement, but what advantage do you expect to gain from using it?
-
Not a problem, I was trying to print some previous gcode files. Thank you for your prompt response.
-
I can see the value of being able to use previous gcode files by supporting volumetric extrusion, so I'll add it to the work list. I need to work out how it interacts with colour mixing before I implement it. It also interacts with use of relative or absolute extruder coordinates.
EDIT: it also interacts with pause/restore, and extrusion commands in the web interface and PanelDue. There's a lot to think about. Does your slicer generate the M404 command itself?
