Waring: I haven't actually printed out these things yet to see if they all do what they are suppose to do. If you find a problem before I fix it, tell me UPDATE (4/1/14) uploaded the correct left plate (hole for motor needed to be deeper) & modified tension latch UPDATE: added another internal plate to match the style UPDATE: previous left side plate didn't fit with motor correctly, fixed it, fixed cross-cut things UPDATE: flattened the bottom of the latch and increased hole size based off the style in my 60mm printrbot jr side fan mount, I've made these plates and a latch to complement the design. more to come... maybe my fan mount design: 60mm: http://www.thingiverse.com/thing:246204 40mm: http://www.thingiverse.com/thing:248367 note that the latch doesn't have a fan attached on purpose