Lego Technic ADT 7 - Worm & Spring

A compilation of some more automatic gearboxes and stepper mechanism featuring opposing worm and spring design. Ratchet mechanisms are used to prevent backdrive when the secondary path disengages. Please turn on subtitles for some commentary. Related videos (Not to Scale): Directional mechanisms (2in1 Bricking): Related shifting mechanism (Technic Brick Power): Related shifting mechanism (MaxBrix): Torque creation mechanism (Technic Brick Power): 0:00 Worm & Spring 1:11 Intro 1:44 Model 1 3:09 Model 2 4:50 Model 3 7:00 Display & Stats 8:10 Stepper 2.0 10:00 Stepper 2.1 11:45 Subscribe! Music in this video: 备兴天下beat