Hello fellow Bambu forumers,
I’m working on a project printing an ABS box, which is split into a top and bottom cover. When assembling the box, it is joined by a groove around the bottom cover and a male protrusion on the top cover.
For each print, I maximize the build plate with 8 top covers and 8 bottom covers.
I’ve printed a few hundred of these boxes using two P1S machines. I’m still printing now, but I’ve noticed that bumps have started appearing on the top layer of the female groove from one of the P1S printers. The width of the area where the bumps appear is about 0.70mm. The prints from the other P1S don’t have this issue. These bumps are causing the box assembly to be tighter than before.
[PIC 1] The red arrows are pointing at the bumps along the top of the grooves.
[PIC 2] Under the scope, it looks like this. The surface is no longer flat and smooth like before.
I don’t think it’s an issue with the model, as I’ve printed hundreds without problems. This issue is only happening on the newer P1S. I’ve already run the Flow Dynamics Calibration, but the issue still persists.
Has anyone encountered this before? What could possibly be the cause? I’d really appreciate any pointers to help troubleshoot this.
Thank you in advance!