This is a small demo of the beautiful Brick Machine Shop Linear Actuator. It is 18cm long with 10cm travel and is the clutchless version. I have been told that this will push up to 300lb if you have the motor to power it. It is pretty impressive using just the medium power functions motor.
For more info check out
http://www.bricklink.com/store.asp?p=Eezo
@appleintosh I agree, that would be very cool!
burf2000 2 weeks ago
They should make a Lego compatable hydraulics system
appleintosh 2 weeks ago