Raspberry Pi 4 NES case w/ optional fan

prusaprinters

<p>A remix of Bocklar's NES case adapted to fit the Raspberry Pi 4. This design blocks access to the Ethernet port, but all four USBs are accessible under the "cartridge door". Includes an alternative top with a spot to mount a 30mmX30mmX8mm fan such as these: https://amazon.com/gp/product/B07QJ4MS2L</p> <h3>Instructions</h3> <p>I printed mine in PLA, 0.3mm layer height, no support.</p> <p>Files for two "Top" pieces are provided, the standard and one with space to mount a 30mm fan.</p> <p>No screws are necessary as the case snaps together. If using the fan option, the fan may be slid in from the front and will be held securely behind the small "bump" (see photo).</p> <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/8c/8d/09/ec/32/Fan_Mount.jpg"/></p> <p class="detail-caption"><strong>Slide 30MMx30MMx8MM fan in from the front, it will "snap" in behind the small bump</strong></p> Temperature Management ====================== <p>I performed stress testing according to the procedure described here: <a href="https://core-electronics.com.au/tutorials/how-to-stress-test-temperature-on-raspberry-pi.html">https://core-electronics.com.au/tutorials/how-to-stress-test-temperature-on-raspberry-pi.html</a>.</p> <p>Tests were done on a 4GB Raspberry Pi 4 with no heatsink. These tests were performed roughly an hour apart, all were done indoors with a relatively stable 25C ambient air temp. I ran the test three times: once with a bare board (no case), once in the standard case with no fan, and once with the fan.</p> <p>The bare board test had temps peak in the low 80s C, with some throttling down to 1000MHz during the test.</p> <p>The standard case with no fan saw temps approach the high 80s C, and experienced significant CPU throttling throughout the test, frequently hitting 600MHz.</p> <p>The case with fan connected to the 5V GPIO power rail had peak temps in the low 70s C, and had no throttling, maintaining 1500MHz throught the load test.</p> <p>See graphs below.</p> <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/1e/3c/12/0c/74/All_Tests.png"/></p> <p class="detail-caption"><strong>Temperature for all 3 tests.</strong></p> <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/17/2b/b5/2e/a6/NoCase.png"/></p> <p class="detail-caption"><strong>Bare Board (No case/no fan)</strong></p> <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/1a/af/62/b6/85/NoFan.png"/></p> <p class="detail-caption"><strong>Case without fan.</strong></p> <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/6f/0c/e7/22/90/WithFan.png"/></p> <p class="detail-caption"><strong>Case with fan.</strong></p> Category: Electronics