It sounds as if your problem is being caused by the motor being 'back driven' when switched off. Possible solutions:-
1) Don't turn the motor power completely off - reduce the power level to the point where everything stays put.
2) Implement a lock or latch that engages to hold position
3) Use gears with higher friction to drive things up and down - for instance, worm gears do not usually suffer from being back driven
Have fun ! Dave
I have a problem with mindstorm motor, I create a tower who go up and
> down and now, I must that the tower (when I want) stay up because
> since today when I shutdown the motor (OUT_A) the tower didn't stay up
> but fall down! Can I use some function? like Float? I didn't find
> anything in Internet¨!
> Thankyou!
> Wizche
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