Helical gearbox

This is a helical gearbox.
The whole gearbox is printable, only the screws and nuts are bought (DIN 7985 M3x16).
The bearings 608 8x22x7, are also printable (file is attached), but you can also buy them.

The casing is printable without support
The nuts are molted into the casing.

gear ratio 1:2
z1=12 teeth
z2=24 teeth
m=2mm
β=20°


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Update: 29.12.2021 --- "V2"


That's new:

-shaft_big_gear_v2
-shaft_small_gear_v2
-casing_top
-big_gear_v2