What causes this mess?
What causes this mess. The belts are tight. See picture 20250916_091422.jpg in attachment. Also included is the project file.
Senior Life member of IEEE.
RE: What causes this mess?
We can't see that picture. Judging by the project file, I guess that warping is your trouble. Printing a huge model with square edges in PC -> a perfect recipe for warping problems.
Of course, I may be wrong, please try to attach properly that jpg file.
RE:
Sorry, my mistake, I see now that the jpg file was included in the rar file.
Yes. it seems a warping issue combined with poor bed adhesion possibly. Are you positive that the bed is totally free from oils/greasy residues?. It's not clear by that picture if the printer is enclosed. If not that 's a problem because high temperatures around the model help a lot with PC. A smooth plate is a good choice but you NEED to use adhesive ( Magigoo PC, Dimafix, 3Dlac..) or the PEI sheet might be damaged removing the model, specially if it’s big. You can add a wide brim and set the gap between model and brim = 0.
If you’re able to modify the model without affecting the functionality, I’d add empty spaces inside the main rectangle to relieve thermal stress.( a series of circles or rectangles would do ). See the atteched zip file with a modified version of your project