The opto endstops are soldered and just need some trimming with a pair of nippers that I don’t have. I’ve moved onto the insertion of the bearings into the pulley wheels (see http://wiki.makerbot.com/cupcake-cnc-0:cupcake-pulley-assembly). While most of this went smoothly, I am concerned that one of the bearings literally falls out of the wheel when the wheel is inverted and lightly shaken. I’m concerned that it needs to be glued. Did you folks encounter anything like this?

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