You HAD to replace the 2x3 brick with two 2x3 plates + one 2x2 plate otherwise the gear's teeth touch the stud.

Parts needed:
1 x

2 x

2 x

1 x

I have noticed people complaining about the elevator not going down when there is no car - this is unrelated to this. I have found the best way to deal with this is just making sure all bricks and tiles on the shaft are really tight, making sure no friction comes from the contact with the shaft.
Edited by SheepEater, 29 October 2012 - 07:19 PM.












