Hi,
take a look at this guide:
https://support.3dverkstan.se/article/23-a-visual-ultimaker-troubleshooting-guide#ringing
Ringing can happen when the head performs quick moves. Reading through the guide I see that it might also be the infill showing through the outer walls. I am not sure about it either, maybe others will chime in.
Which print settings did you set for the print on the UM3? The screenshot you posted looks like Cura 15.x and for the UM3 you should use the latest Cura 3.4.1 (well for the UM2 too but if you can).
Recommended Posts
Nicolinux 288
Hi and welcome to the forums.
Which print settings did you select in Cura for the UM3? The wavy pattern might be due to ringing (can't see properly though, maybe you have a closeup on the UM3 model?).
Link to post
Share on other sites