I've taken the plunge and tried using SF instead of Slic3r.
I copied the ABS profile from the SD card that came with my M90 as a start point.
Apart from setting a different filament diameter and tweaking start.gcode for correct nozzle and bed temperatures I didn't change anything else.
The print was sooooooo slow (guess around 1mm/s nozzle speed) that the extruder hardly turned at all and just produced blobs.
I changed the feed rate to 70mm/s (I know my M90 can do this easily) and flow rate to 70. I changed all infill / perimeter multipliers to 1 rather than 0.5.
It's faster but nowhere near correct.
A quick glance at the gcode makes me think feedrates are an order of magnitude too low. Some roughly equivalent lines:
Slic3r:
G1 X10.000 Y-20.510 F2400.000 E1.41406 ; skirt
SF:
G1 X9.775 Y9.775 Z0.6 F234.7024 E0.399
What do I need to tweak?
Sorted: Several things were wrong as well as SF just silently failing.
Edited 1 time(s). Last edit at 08/03/2013 10:02PM by threedyprinter.
My main problem was that start.gcode sets the extruder to relative mode and the ABS profile that I was using was set to absolute. I'd never seen that extruder gear spin so fast!
