im trying try to print with 2 colors, but i cant see the preview, i wrong something, but, i don't know what...
my printer is custom with marlin 2.0 (last stable version)
both extruder work properly, i can print with one or the other different object, but not both on the same object
My procedur is:
import a two stl
start dual extrusion wizzard (with group and align models)
(each process on a different model)
click preview, select both process... and empty result...
(Build time:0 hours 0 minutes...)
what i wrong?