5 Lego Technic Couplings with Movable Output

Hi,
this is a video about mechanisms where you can move the output without changing the distance. My favorite one is #3, what is yours?
This is actually my second-longest video, so I hope you enjoy watching,
2in1

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Links:

Rebrickable (part list and .io file):
https://reb.li/m/99260
https://reb.li/m/99261
https://reb.li/m/99262
https://reb.li/m/99263

Music:
Underwaterbeats - Neon Lights |    • Underwaterbeats - Neon Lights  

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Timestamps:
0:00 Intro
0:06 #1 - Just Universal Joints
0:54 #2 - Basic Oldham Coupling
2:07 #3 - Schmidt Coupling
4:08 #4 - Robust Oldham Coupling
6:05 #5 - Universal Joint + Movable Output

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#lego #technic #coupling #mechanism #joint