I built my 3D printer a couple of months ago, but I can't get it to print sharp corners. The corners in the picture should be 90°, without any fillets:
During this test print, I played with multiple parameters: speed, temperature, acceleration, junction deviation, linear advance. All of these were also individually tuned previously. Nothing seems to make a difference.
Could this be a issue with the construction of my printer? I'm beginning to think my hotend isn't rigid enough, but then I would at least expect better results at low speeds.
Edit: the printer is a CoreXY of my own design running Marlin 2.1.2.1. The Slicer is PrusaSlicer with most settings left as default (but increased speeds)
Cube looks good, but corners are rounded bit too much I think (at least the one on 2nd pic)
Your design CoreXY reminds me on belt issues. Do you have a pic? It doesnt have to be mechanical issue, but belts must be tight and parallel/perpendicular to linear motion system.
The belts are parallel to the axis, but I will try tightening them some more.
It looks great. Ive seen some bad designs with weird belt paths, but not your case
Tightening the belts seems to have helped, but I will have to do some more printing to be sure. Thanks for your help!
Great to hear that