So I started to work on this again. First built a turret turning system. The goal was unlimited turning without wiring getting wound up.

Started with a geared down motor: 24v DC brushed worm gear motor, 15 rpm, 70kg.cm / 5.2 ft lbs.



The motor has a 8mm output shaft. I bought some 8mm steel shaft to extend it.

Since I want unlimited rotation, I decided to go with a hollow slip ring. SInce I want to be able to expand on what is in the turret, I decided on a 12 wire version with 10 amp current. I plan on a paintball or airsoft gun in the turret, as well as other accessories (lights, camera...).
here is the picture of the slip ring.



The goal is a low profile system, so I chose the hollow slip ring with a 12.7mm hole, because it is easy to find 12.7mm (1/2") to 8mm sleeves. They are used to adapt US 1/2" routers to take 8mm bits. This way the hollow slip ring fits over the sleeve attaching the 2 8mm shafts.


So I welded the sleeves to the 8mm shaft I bought and mounted a Rigid flange with a 8mm hole.

Flange and shaft


Everything welded together, with drilled/tapped hole for a set screw. Flange is also attached by set screws.


Shaft fitted on the motor


The complete assembly