It is a simple rack and pinion mechanism using 28BYJ-48.
Print each part one by one.Print the cover.stl if necessary.
video:https://www.youtube.com/shorts/94mWcnWbyqk
・Arduino
・28BYJ-48Stepping Motor
・ULN2003Driver Module
・5Vbattery
Box.stl | 61.1KB | |
cover.stl | 44.8KB | |
Gear.stl | 256.2KB | |
Rack.stl | 302.0KB |