Rechargeable Electric Screwdriver w/ Magnetic Tip

prusaprinters

<p>I decided to create my own rechargeable electric screwdriver as I did not like the existing models on the internet or in stores. This one features a battery protection circuit, sliding actuator, a 4.4Wh battery, and a 1:200 reductor motor. It lasts a really long time and is capable of some serious power.</p><p>The wiring schematic can be seen in the pictures.</p><p>Components required:</p><ul><li><a href="https://www.aliexpress.com/item/1005003482247510.html">GA12-N20</a> micro motor with 1:200 reductor</li><li><a href="https://www.aliexpress.com/item/32706081189.html">18350</a> Li-ion battery (unprotected: due to size constraints)</li><li><a href="https://www.aliexpress.com/item/32893695596.html">03962A</a> battery charging board w/ micro-USB connector</li><li>2 <a href="https://www.aliexpress.com/item/1005001432415340.html">microswitches</a></li><li>2 battery spring <a href="https://www.aliexpress.com/item/32828688604.html">contacts</a></li><li>1 meter of 20 gauge wire (red &amp; black)</li><li>2 countersunk M3x6 screws</li><li>1 4x1.5mm <a href="https://www.aliexpress.com/item/1005003409535252.html">round magnet</a> (fixed to the inside of the bit w/ <a href="https://en.wikipedia.org/wiki/Cyanoacrylate">cyanoacrylate</a> glue)</li></ul>