Threaded inserts

In order to not require gluing the turbine to the magnetic carrier, I wanted to add a threaded turbine attachment. To do this I added two options...

1) A threaded insert for those that already have this printed.
2) An integrated threaded version of the turbine and magnetic carrier (for those that have not printed anything yet).

For the inserts you will need to glue the inserts to the turbine and magnetic carrier respectively.

Update: I also added a simple handle to hand crank the magnetic carrier. Spacers were also included to reduce friction.

Update: I went ahead and built a full hand crank gear assembly that can be attached to a block of wood with the unit. I also created a Rectifier + Regulator + Volt Meter housing for hand cranking (I wired it to AC, DC and Regulated 5v3A DC).

**Parts**:
* PlusRoc Waterproof 12V/24V to 5V... https://www.amazon.com/dp/B09QGW7GNJ?ref=ppx_pop_mob_ap_share
* Bridgold 5pcs KBU2510 2510 Bridge... https://www.amazon.com/dp/B09BTPQZ2G?