portable 120mm case fan with 18650 battery, charging and boost circuit

prusaprinters

<h4>Disclaimer</h4><p>This design requires soldering skills as well as basic knowledge of electrical wiring and handling of LiPo batteries.&nbsp;<br>If you want to build this, <strong>please make sure you know what you are doing</strong>. Please figure out wiring for yourself.</p><h4>Information</h4><p>The enclosure has wiring cutouts and holes to connect the Batterie to the charging circuit, the charging circuit to the Boost circuit and the boost circuit to the 120mm fan.&nbsp;<br>Also grooves are included for zipties and a small hole is included to access the potentiometer screw of the boost circuit to ajust the rpm of the fan (small flathead screwdriver needed).</p><p>There are two versions:&nbsp;<br>One is flat and has no mounting point for the switch, the second has a latch to mount the powerswitch.</p><p>My usecase is primarily for sucking away soldering fumes, but it has its moments on hot summer days as well.</p><p>The fusion 360 models are also included, so you can adjust to your needs.</p><h4>What you Need</h4><p>1x 18650 batterie<br>1x old 120mm fan<br>1x charging circuit (search for “TP4056 18650 usb c carging board” on ebay)<br>1x boost circuit ("MT3608 2A DC-DC Step-Up Boost Converter" on ebay)<br>1x power switch ø6mm&nbsp;<br>2x M1,5 x 5 screws to secure the charging circut (or hotglue, if you are the hotglue type)</p><h4>Versions</h4><p>v00 initial upload</p>