Meisseli

Meisseli - 3D printed electric screw driver

Adapter for 4mm and 6.35mm bits included, along with Build123D code for customization.

Stuff needed

- 6x M2 x 6mm countersunk (pcb and case mount)

- 2x M1.6 x 4mm countersunk (motor mount)

- 6x M2 heat set inserts, the one near the motor needs to be short

- a motor like https://www.aliexpress.com/item/1005005499465760.html (type A)

- 18650 battery, use one with a protection PCB included unless you feel like doing something fancier with the motor control PCB. The battery bay is longer to accompany such a battery.

- a switch, two press buttons, a spring and such miscellaneous stuff 

Optional 

- A mini drill chuck

Motor control 

I had an old LB1630 driver around, winged a franken-vero-board with two pull-down 1206 SMD resistors and a cap. There's a sketchy sketch as veroboard.gnumeric. You might want to do something saner instead.  The thing is a bit underpowered, it could use a circuit to up the voltage. That would need a redesign to make it fit though, maybe in mk2.

Warranty 

None whatsoever, I'm not responsible for anything you do.