Ok so now that I can successfully get the unit to push 4 colors to the extruder I need some help getting I’m the tips of the filament shaped to be able to retract or reload and not get stuck. if anyone has the unload settings in their direct drive setups would be great to see if you had to tweek the generated g code.
ender3 v2 microswiss direct drive
I've been able to get my Ender3 V2 with MicroSwiss direct drive to work with the following settings for tip formation and extraction.
; quickly retract the filament to shape it
G0 E-50 F10000
G0 E50 F2000
G0 E-50 F10000
G0 E-35 F50
What this does is extract the filament just into the plastic tube between the hotend and extruder at high speed then pushes it back down to the tip, repeats the high speed retraction then slowly retracts to cool out of the extruder gears.
I found the tubing from the extruder to the Y need to be at least 2.0mm IDO so as not to jam because the best shaped filament tip I've been able to get is 1.95mm in dia.