Cut circles with a router
Cuts perfect circles with a palm router: screw the router base to the wide end, put a nail through one of the pivot holes into the centre of the board, and swing the router round.
Prints flat as a plate, no supports.
Filament: at most about 84.2 g of PLA printed solid (roughly $1.68 at $20 per kg); normal infill uses less.
To get the files, open it in the generator and choose File › Download STL (one file per part) or Download 3MF (every part on one plate).
The router circle cutting jig model measures 240 × 60 × 11 mm (width × depth × height). You can change every size in the free SO3D.xyz generator before you download it.
No. Prints flat as a plate, no supports.
At most about 84.2 g of PLA (67.9 cm³ printed solid), roughly $1.68 of filament at $20 per kg. Normal infill uses less.
Yes. Open it in the SO3D.xyz generator (free, in your browser), change the size, walls, dividers, holes, text or anything else, then download it as STL or 3MF for your slicer.
Change the size, walls, dividers, holes and labels of the router circle cutting jig model in your browser, then download it for your printer. Free, no CAD needed.
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