So I'm playing around with gears that I created using Gearteq which is very nice and so much faster than trying to manually create it.  No problem with the gears.  The challenge that I have is that I can't rotate some of the gears in assembly even though I have already made them flexible in the assembly.  This is what I'm trying to accomplish.

I'd like to be able to rotate Gear A so that Gear B will move the whole arm up and down depending on how I rotate it.  Something that I did just doesn't look right but I can't figure out what I did wrong.  Mind sharing with me what your thought on what I didn't do right?  I'm sure it's probably something simple that I overlook that caused the problem.   Please help?  Thank you.