Armor Case Raspberry Pi Mount for Prusa Bear

prusaprinters

<p>This is a <strong>Raspberry Pi mount for the </strong><a href="https://github.com/gregsaun/prusa_i3_bear_upgrade"><strong>Prusa Bear</strong></a><strong> frame that works with heatsink type cases</strong>, such as the Sertronics <a href="https://shop.pimoroni.com/products/aluminium-heatsink-case-for-raspberry-pi-4?variant=29430673178707">Armor case</a> or the Joi-It Armor Case or any case of this type. It works with Raspberry Pi 3 and 4. You just have to have the right case respectively.</p><p>If you use the original MK3S+ frame check out the <a href="https://www.printables.com/model/211361-armor-case-raspberry-pi-mount-for-original-prusa-m">version for the original Prusa frame</a>.</p><h3>&nbsp;</h3><h3>Features</h3><ul><li>Works with Raspberry Pi 3 and 4</li><li>Works with any type of Armor-style case that uses M2.5 screws. Just google “raspberry pi armor case”. All of them are compatible, including the actively cooled ones.</li><li>Prusa Bear-style aesthetics</li><li>Short path between Raspberry Pi and the electronics case allows very short USB cables</li><li>STEP file available for easy remixing</li></ul><h3>&nbsp;</h3><h3>BOM</h3><figure class="table"><table><thead><tr><th>Qty</th><th>Description</th><th>Sourcing</th></tr></thead><tbody><tr><td>1</td><td>Armor case for the Raspberry Pi (only top part needed)</td><td><a href="https://shop.pimoroni.com/products/aluminium-heatsink-case-for-raspberry-pi-4?variant=29430673178707">Pimoroni</a>, <a href="https://www.amazon.com/Geekworm-Raspberry-Computer-Aluminum-Compatible/dp/B07VD568FB">Amazon</a></td></tr><tr><td>4</td><td>M2.5x8mm Socket Head Cap Screws</td><td>Take from Armor case</td></tr><tr><td>1</td><td>M3x10mm Button Head Cap Screws</td><td><a href="https://www.aliexpress.com/item/4000896301219.html">Aliexpress</a></td></tr><tr><td>1</td><td>M5 T-Nut for 2020 Extrusions (drop-in T-nuts or slide-in)</td><td>&nbsp;</td></tr></tbody></table></figure><h3>&nbsp;</h3><h3>Assembly</h3><ul><li>Assemble the top part of the Armor case and the mount using the M2.5 screws so that the Raspberry Pi is sandwiched between them as shown in the picture below. You don't need the bottom of the Armor case.<br>&nbsp;</li><li>Install the mount on the back side of the left vertical aluminum 40x20 extrusion (just above the electronics case) using the M5 bolt and T-nut. If you use a slide-in T-nut you will have to temporarily remove the top cap of the extrusion.</li></ul><figure class="image"><img src="https://media.prusaprinters.org/media/prints/93184/rich_content/f2aa6d69-d4a7-45d4-980e-48967b547762/assembly.png#%7B%22uuid%22%3A%22b370c2ed-b3d3-44d1-9f4c-195946a5b89a%22%2C%22w%22%3A1301%2C%22h%22%3A976%7D"></figure><h3>Print Settings</h3><p>Use PETG or another material with a higher temperature resistance in case the Pi gets a little warm.</p><p>Print the part with the flat side down as shown in the picture below. No support material is required.</p><p>You can use the <a href="https://github.com/gregsaun/prusa_i3_bear_upgrade/blob/master/doc/print_settings.md">Bear print settings</a></p><ul><li>Material: PETG (or any solid material with decent heat resistance)</li><li>Extrusion width: 0.45mm</li><li>Layer height: 0.2mm</li><li>Perimeters: 3 or 4</li><li>Infill: 20%</li><li>Solid layers: 4 or 5 top and bottom</li><li>Supports: no</li></ul><figure class="image image_resized" style="width:75%;"><img src="https://media.prusaprinters.org/media/prints/93184/rich_content/a4ae74bd-39e7-458e-aae8-1db883934987/slicer.png#%7B%22uuid%22%3A%22d8c683a3-1150-424f-b0a1-5d4f23069aa2%22%2C%22w%22%3A1016%2C%22h%22%3A762%7D"></figure><h3>&nbsp;</h3><h3>Post-Printing</h3><p>The four M2.5 holes are floating counterbore holes. They're closed so that they can be printed without support. You need to poke them through using an M2.5 crew or a 2.5mm drill bit or anything pointy. It's just a single layer.</p>