"Model B" Acrylic Open Enclosure

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The "Model B" Acrylic Open Enclosure is a case for "Model B" sized single-board computers sold by Pine64, available from the official store.

Mods

3D-Printable Top With Fan Cutout

Top view of the plate

User:CounterPillow has created an alternate 3D-printable top plate which allows for the mounting of a 40mmx40mmx10mm fan. The STL and STEP files are available free of charge, licensed as CC-BY 4.0.

A fan is mounted to it using self-tapping fan screws usually shipped with computer fans; put the fan on the underside of the plate, and screw in the self-tapping screws from the top side. Make sure that you have the fan oriented the right way, though this being an open enclosure, there isn't really a wrong way.

Recommended printing material is PETG for its structural rigidity. However, PLA will likely work fine as well, and is easier to print. A 0.6mm nozzle was used for test prints, but any nozzle should work. Depending on the layer height you choose, your print may come out slightly thicker or thinner; this is no problem though. It's recommended to enable the advanced "Detect Thin Walls" option in slic3r to get a cleaner g-code result around the fan holes.

The print will take approximately 7.8 metres of filament, and take in the order of one hour, though this depends on slicer settings and printer model.