Magnetic Paddle Shifter

This is a remix of https://www.thingiverse.com/thing:4193571

I've modified some parts to use more readily available parts around my area.

[BOM]
Shifter arm:
M3 x 30mm bolt or screw [x1]
M3 x 20mm bolt [x2] (for shifter paddles)
M3 nuts [x3] for accomodating the bolts

Shifter body:
M3 x 12mm or 20mm depending on the wheel you're mounting on [x1]

M3 nuts to accomodate the screw mount [x2]
M2 x 12-20mm (to mount the KW11 microswitch) [x2]
M2 nuts to accomodate the screw mount [x2]
KW11 microswitch (you can remove the lever if you want to) [x1]
12mm (diameter) x 5mm or 4mm magnets [x2]