14.4 : 1 reduction ratio
M5 nut fixture 0.8mm/turn (pitch)
you will need an M5 hexagonal head screw, at least 70 mm long.
since the control of the speed is very accurate the distances are arbitrary but the math needs to be done
EDIT:
| assembly.stl | 1.2MB | |
| hinge_down.STL | 22.5KB | |
| hinge_up.STL | 29.8KB | |
| worm_gear_-_central_peg-1.STL | 112.6KB | |
| worm_gear_-_central_peg_v2.STL | 100.1KB | |
| worm_gear_-_clamp-1.STL | 12.7KB | |
| worm_gear_-_clutch-1.STL | 35.5KB | |
| worm_gear_-_corners-1.STL | 13.3KB | |
| worm_gear_-_corners_v2.STL | 13.0KB | |
| worm_gear_-_fix_end-1.STL | 158.9KB | |
| worm_gear_-_fix_end_v2.STL | 153.3KB | |
| worm_gear_-_gear-1.STL | 268.9KB | |
| worm_gear_-_gear_v2.STL | 374.4KB | |
| worm_gear_-_lid-1.STL | 31.9KB | |
| worm_gear_-_lid_v2.STL | 30.4KB | |
| worm_gear_-_worm-1.STL | 537.2KB | |
| worm_gear_-_worm_v2.STL | 474.0KB |
