From my grandma I inherited flat collecting trays, which have proven to be very handy when assembling my projects from small details. So handy that I needed more of them - so I designed some to print and a lid that the originals didn't have.

Maybe someone else will benefit from this design. That's why I designed it a way you can adapt them to your own needs in BambuStudio (see photos). Since BambuStudion is based on PrusaSlicer, it should also work there and probably in any other slicer programs too.

Have fun with it!