This conveyor is 25mm wide and 20mm long.
It has M3 holes for mounting

Printing instructions:
- Print pieces flat

Assembly instructions:
- Print all conveyor parts (You need multiple conveyor belt pieces, alternating with one flat or top pieace and one bottom piece)
- Assemble conveyor parts with M2 20mm screws
- Press a 605ZZ bearing into the parts
- Place N20 motor inside the middle part, route the wires through the side hole
- Holes for M3 threaded inserst are available on the gears
- Use M5 screws to secure shafts
- Screw left right and middle together with M3 screws