About this 3D model

Summary edit: the Edges are very sharp - i am working on a less sharp version made a dovetail puzzle as a gift box for bank notes (some folding necessary) Be aware of the sharp edges. my printer did not like some of the edges (as shown in the pictures) if you can give me advise to correct this - please do printed with 0.10 - worked fine bank notes are not included in the stl-files :) Print Settings Printer Brand: Creality Printer: Ender 3 Rafts: No Supports: No Resolution: 0,10 Infill: 20