Probe Droid dead rotation mechanic

Compatible with the awesome model by Droid Division (https://www.etsy.com/de/listing/936535469/von-droid-division-probe-droid) i created a drop-in-extra to make the head rotatable. It also brings you a holder for a slipring, to bring wires to the head while rotating.

Items you need to buy:
* 8mm Motor Adapter (https://www.ebay.de/itm/167312433390)
* Gear Motor with 7 rpm (5840-31ZY) (12v or 24v) (https://www.ebay.de/itm/388046033037)
* M4 screw 35-40mm x4
* Screws to mount the Motor (M4 15mm) - check Motor first!