... still trying to get comfortable with openSCAD, so i decided to create these parametric filament-splitter for dual-material-prints with a single nozzle.

This is a work-in-process and somtimes i am still struggling with jams (especially when the filament enters the hotend (e3dv5-china-clone)).

Nevertheless - good luck :)

The following script is for Simplify3D (@ToolChange Script) to change the filament and purge the nozzle.
You have to set the values for retract and feed to your needs.

####################################################
T[old_tool]
G1 X-70 Y0 F6000 ; go to purge position
G92 E0
G1 E-20.000 F12000 ; retract
G1 E-30.000 F1200 ; retract
G1 E-130.000 F12000 ; retract

T[new_tool]
G92 E0
G1 E110.000 F900 ; feed 11cm
G1 E120.000 F420 ; feed 1cm
G1 E140.000 F240 ; feed 2cm
G92 E0
####################################################