Summary

This is a Worm gearbox with a reduction ratio of 1:60
The intersecting axis distance is 31 mm

It's a very simplified version without bearings, however it's a working model

Is better lubricate with a bit of grease the transmission gears if you want to provide high speed on the input shaft (for example a drill)

(you need n°2 gear_shaft.stl)

video
https://youtu.be/Bn2eLQs0mUc