I would not find this issue unless trying printing the transparent object.
If I print just thin cube (2 lines thick) with transparent MABS standing vertically in the plate, it prints very well.
But as soon as I put this cube as a window into the bigger part, printing MABS with one nozzle and ABS with another nozzle, the quality if window is awful, it puts balls of air inside and in general has defective surface.
I noticed that as printer starts switching the nozzle, it stops heating the nozzle being changed (demoted). That would be totally understandable and ok, but the nozzle which is being promoted into operation is cooled down when process starts, and while printer does specific tasks on printing tower before approaching the part to print, it comes to the part with temp up to 10 C less than minimal allowed. I’d expect printer to wait until nozzle heats to nominal temp and temp stabilizes, and only then starts touching the part.
AI proposes to dig into filament properties or slicer state machine disabling G codes but I think it is totally wrong. There must be an option to instruct printer to sacrifice speed and favor the quality and wait until nozzle heats and only then start printing.
Please advise. Thanks.