Updated based on recieved feedback. Thanks! Better located vent holes, leaving a Wankel shaped interior covering the fan. Version 1.6 has two options, with a 50 x 10mm or 40 x 7 mm square 5V fan. The height of the 40 mm version is just below 1", and the 50 mm version is 28 mm. pic.twitter.com/X502FF5dc0 Here is a case for parallella, as shown in http://t.co/c2RCSFINnJ http://t.co/99RKhu5Aob Fan dimension is square 50 mm, height 10mm. To keep i simple, no screws are needed. Fan is clipped in place, and pins together with the slide on lid holds the board. UART pins must be bent 90 deg in order to slide the lid on. There is a gap on the side for attaching the wires. Have fun with your parallella! To save time and material, I have made the case with an uneven surface. It prints without a rafter directly on the surface (preferably no carpenters tape). Tested on Replicator 2 with PLA. Tip: When fan is attached, the leads may be a little short. Rather than extending the lead clip (not slide) on the first part of the way. Instructions for a good way to soldering your fan, may be found in https://twitter.com/parallellaboard/status/468416094991319041 or ow.ly/x0Sf4