I’m wondering if anyone else is seeing this problem?
I am having issues with the back left corner of the heating bed. It seems when printing with anything without a raft that at some point it starts to lift from the back left corner. I tested this with a 65mm disc on Default Normal settings + Skirt (snapmaker reel adapter washer from thingiverse). That corner will start to lift after a while and eventually the disc comes loose completely from the bed. However when I offset the print to print in the front right quadrant (furthest from the problem area) it works fine. No issues at all.
I first noticed this printing the large snapmaker accessory box from Thingiverse. The entire back left corner print area lifted about 2mm. At the time I thought it might be the room/cooling, however I put the entire unit under a plastic box to shield it from any drafts and to help even out the temp a bit maybe. It didn’t help unfortunately. Only offsetting the print to the front right corner has really proven reliable.
Does anyone else experience this or have any suggestions? I checked and the bed appears level. I’m going to try and check the heating temp across the bed surface if I can.