8mm Slip Ring Mounting Plate for 7.5mm slip ring

[L3-G0](http://L3-G0.com) has a spinny dome connected to the main body power with a slip ring, which lets the wires spin.

But... I have to be able to take off his dome, so there's a plug inside it. I had loose wires with a barrel plug hanging down that kept getting loose. In order to secure things better, I needed to secure the lower end to the top of the slip ring, which is a little cylindrical post with wires coming out the middle.

So this is just a sleeve that presses very tightly ont