Originally Posted by pphaneuf

The manual emphasizes in two separate diagrams that the narrow side of the offset spur gear should go on the side with the spacer, which should go on the side of the short belt (motor side). See this album, for the diagrams in question, and photos of how I've built it:

https://plus.google.com/photos/+Pier...37555285064881

But check out how freakishly close that comes to the top deck (and how much of the motor shaft):



I'm pretty sure I should relax, I'm just not sure if I should relax about a) how close this comes to the top deck, or b) following the manual closely.