3d-printable Onion cutter

No more tears in your kitchen as from now on you will be hacking and slicing these annoying onions in seconds!

Custom designed 4:1 involute planetary gearset and easy to grip bowl and ring gear for big torque capacity and blade speeds up to 340 rpm. No escaping these blades for your onions anymore!

This fully 3d-printable onion cutter makes use of the fact that an M3 tap screw fits perfectly through the hole of 9mm stainless steel cutter blades.

compared to it's functionality, it's a rather easy print:
- no support needed
- only small (11mm wide) bridges and some hole bridging
- no overhangs above 45°
- big bottom surface for good bed adhesion
- no tweaking of the parts needed
- small internal surfaces for correct hole bridging have been integrated in the parts
- coordinate systems have been reoriented so parts are placed in correct printing orientation automatically
- tolerances have been considered so parts do not have to be modified after print (except pushi