17 replies

Very bad surface quality (V-Minion, LGX Lite + Rapido 2+)

I recently assembled my first V-minion, standard kit but with a Rapido V2. Everything seems to be working properly, but I am getting very bad surface quality on the prints, as shown in the images.

I have done rotation distance calibration, and tested several flow rates, but I always seem to get faulty extrusion and very noticeable layer lines. Print settings are default Prusa slicer settings for the V-Minion.

I print exclusively PETG, but so far I have tried two brands. Photos are Prusament gray PETG, brand new roll (that's literally the first print with that roll).

Can someone give me some pointers on how best to diagnose and fix this problem?

Many thanks!