I have a Rostock Max V2 which is working well, except I see some banding/artifacts on the surface of layers with holes. I was asked to print a bunch of STLs and the effect is especially visible on some of them since there are so many nooks and crannies. I've printed smoother things like helmets without any such artifacts. The effect is somewhat exaggerated by the lighting, but still clearly visible in regular daylight.
I'm attaching a number of pictures as well as two screenshots from cura.
The STLs were sliced in cura and I decreased the outer shell speed to 10 mm/s (I normally print those at 20 mm/s but decreased to see if that helped, it didn't). Resulting gcode was printed through octoprint. Looks like I'm using Repetier 0.91S
Code: Select all
Send: N1 M115*39
Recv: ok 1
Recv: FIRMWARE_NAME:Repetier_091S FIRMWARE_URL:https://github.com/seemecnc/Repetier-091-ROSTOCKMAX PROTOCOL_VERSION:1.0 MACHINE_TYPE:ROSTOCK MAX EXTRUDER_COUNT:1 REPETIER_PROTOCOL:2
- Areas where there no holes on the same horizontal layers print nicely, see for example the top section of the 4th picture
- Take the hex-shaped hole to the right in the 2nd picture: the area to the right of that hole is wider all around to the other side, it's not like it's shifted
- It doesn't seem to be related to which height the hole is at.
- If it is a mechanical problem, I'd expect a more random result and/or shifted layers. These are... wider/narrower somehow.
- Is this software/firmware related? Something like a rounding/calculation thing?
I'd be happy for any suggestions. I've tried searching around for solutions but haven't been successful so far.