I have an Ankermake M5 that I hadn’t used in a while and recently got back to printing some stuff. I had a few prints come out well but then turned my extruder into a giant glob of melted plastic on an overnight print. I ended up just replacing the whole extruder as there’s been some revisions and I figured it would be nice to upgrade, and replace the v-wheels and all that.
The new extruder initially had a ton of problems with stringing, but increasing retraction fixed it. The problem that I can’t seem to figure out is curved surfaces are now sort of wavy. It’s regular - turning into vertical peaks and valleys. I’m doing a print currently with the speed turned way down, but the issue persists.
Any ideas?
edit: After some trial and error, I figured out that it was a slicer issue. I was using the EufyMake slicer because that one can send jobs to the printer directly. When I resliced in Prussa, the issue disappeared.
Do you have something stuck to one of the gear wheels or pulleys in your belt path?
No, checked that and the period of the undulations is speed dependent
Hmm. Well, then I have no choice but to concur with the others that this appears to be some manner of resonance issue. So much for being hipster about it.
Do you have the machine on a wobbly table? Are any of the armatures loose and able to move? The print head assembly is solid on its linear rails and doesn’t wobble if you grab it and move it around?