electric precision screwdriver charger and bitholder

prusaprinters

<p>This is a small charging station / bitholder for a mini electric precision screwdriver I got from amazon. When the screwdriver is fully seated in its holder, it charges via USB power. There are also spots to hold up to 20 precision (4mm hex) bits.</p> <h3>Print instructions</h3><p>Printed with 0.4mm nozzle, 0.2mm layer height, 10% infill. No supports needed, although there is some bridging in the counterbore holes used to attach the top plate that captures the USB plug.</p> <p>Uses a 90-degree micro-USB cable at the base for charging. Either a right-angle or left-angle cable should work (the pictures show a right-angle cable). The specific model of cable I purchased is from StarTech.com via Amazon.</p> <p>Up to four M3x8mm screws are used to attach the top plate to the base -- I've found that two screws is more than sufficient to keep things together. A future version of this model may use a snap-fit connection of some sort to avoid the need for the additional hardware.</p> <p>I'm also considering adding slots to the bitholder to hold small rectangular magnets under the holes to keep the bits in place. The bitholder holes are currently a bit oversized to make it easy to insert and remove bits. I've done a friction-fit version of the holder in a previous version, but since this stand ends up taped to my desktop I find I prefer the easy insert/remove.</p> <p>Enjoy.</p>