RaspberryPi 4 reference model for housing designs

prusaprinters

<p>I was designing a housing for a RaspberryPi 4 and wanted a simple reference model to design the housing around, so I created this.</p> <p>For me it worked great, the real RaspberryPi 4 board did fit like a glove to the designed housing which is based on this model.</p> <p>You can find the model of my housing here:<br/> <a href="https://www.prusaprinters.org/prints/42638-raspberrypi-4-ultra-performance-housing">https://www.prusaprinters.org/prints/42638-raspberrypi-4-ultra-performance-housing</a></p> <p>When designing your housing keep in mind that the printed parts shrink very slightly. Normally that is not a real factor, but for the distance of the mounting holes for example, you may want to compensate for that in your housing. I did some reference measurements and found that the typical shrinking factor for Prusament PETG, printed on a Prusa i3 Mk3S, is about 0.4%. So you need to increase your mounting hole distances by a factor of 1.004, which gets you to roughly 0.2mm added distance between the monting holes.</p> <h3>Print instructions</h3><p>The recommended usage of this model is for reference when you design a housing, not for printing.</p> <p>If you insist in printing this, I do not recommend to print it in the orientation that I uploaded. Due to the microSD card on the bottom side, you would need a complete layer of supports. If you print it for fun, I propose to cut the microSD card away in Prusaslicer, then it should print nicely. (If you want it complete, print the microSD card separately and clue it on afterwards).</p> <p>For reference and to satisfy this page I have uploaded the gcode of the model without the microSD, so it should be printable with only very little supports, but I did not test it so far.</p>