Just got my A20T... looks to be a fantastic unit. I'm still playing around with test prints. When I do a single color test print (say a D&D figure which Is supposed to be all white) it actually comes out as a merge of all three colors loaded.
I'm using Cura 4.4.0 - I followed the setup instructions and loaded the cura profile as instructed. the start up code seems to be creating a tool that mixes all the colors presumably to prime and clear the hot end, so I wonder if it's not switching back or something? if I manually adjust the mix after it starts printing it continues fine.
My start up gcode is (per your instructions):
Code: Select all
G28 G1 Z15 F300 M107 G90 M82 M104 S215 M140 S55 G92 E0 M109 S215 M107 M163 S0 P0.33 M163 S1 P0.33 M163 S2 P0.34 M164 S4 G0 X10 Y20 F6000 G1 Z0.8 G1 F300 X200 E40 G1 F1200 Z2 G92 E0 G28