Self-locking differential [pneumatic]

[scroll down for Building Instructions]

LEGO Technic Self-locking differential using pneumatic actuator to engage the lock (a rubberband disengages the lock when there's no more slipping).
To function properly (disengage) you must use a leaking pneumatic hose (you can do it with a needle).

Building instructions:
http://www.brickshelf.com/cgi-bin/gallery.cgi?f=482011

Category:

Science & Technology

Tags:

• lego
• technic
• self
• locking
• differential
• lock
• moc

[technicdesigner]

You are epic! You actually made a limited slip differential in Lego!!! Well done.

One thing... Does the slip detector activate when turning a corner?

[mescalinum]

@technicdesigner in order to function properly, there must be a air leak in the pneumatic circuit (otherwise the lock would never disengage). by fine tuning the air leak, you can achieve optimal result, that is: to not self-lock on corners, but to lock on real slip condition (when sufficient air is pumped in the pneumatic circuit) - it is all a matter of slip amount over time

[mescalinum]

@technicdesigner I'm planning to make an adjustable screw-based "leak" in order to allow calibration of that.... maybe I'll use one pneumatic T-junction with a very small screw, if I manage to find one

[technicdesigner]

@mescalinum

Ok, that sounds like a good idea :)