Taigene van door vs Window motor.

[SMHS]

The taigene van door motor will not hold weight while not powered. But a window motor will. What mechanism in the van door motor allows this to happen. I can not find any written description of how the van door motor available in First choice functions. I understand why is designed to work the way it does, but would like to share it functionality with the team.

[cgmv123]

The window motor locks because it contains locking pins. This is so a thief can't force down your car window. A van door locks in other ways, so its motor doesn't need locking pins.

If you don't want your window motor to lock, you can take out the locking pins. I don't have the procedure handy, but search is your friend.

[Gary Dillard]

I seem to recall that the van door motor has a worm gear box, but the lead angles and friction angles are such that it can be back driven.

[DonRotolo]

^^What Gary said. It is a function of the design of the worm gear system. (Yes, the window motor also has locking pins, and without them some window motors can be backdriven).

One year we put a Van Door motor on the same shaft as a Window motor. The window motor was essentially a brake, the Van Door motor was the muscle. We broke a window motor about twice per competition...but it was an easy replacement.