Make part rotate on its own axis

I am trying to make a frisbee tool but I am having trouble with the spin. As you can see in the picture, the hitbox is translucent, it would normally be invisible, and the visible frisbee is the blue ring. Right now if I weld them together and make them spin it looks wobbly and is not right. I want to make the blue ring connected to the hitbox, but spin along its own axis. I tried using a HingeConstraint but I could not get it to work.

This aint no building support. Please immigrate to game design for better luck.