Festool Systainer 3 (SYS3) flat insert

An insert for Festool Systainer cases that ensures a flat/even bottom of the box. It can be printed either in 6 parts (Prusa Mini or comparable printers) or 4 parts (Prusa MKx). These parts can be attached to each other using M3 Buttonhead screws and M3 Hex nuts or left as is since the pieces slot into place without screws. 

If you own a large-scale printer like the Prusa XL, you can also use the Autodesk Fusion360 files to generate a model for those.