Ball Vice

Update:

• Added a smaller, 80mm diameter version of the ball vice. Same bearing size as the 130mm version

A Ball Vice, usually a tool used by jewelers to work with rings. 
It can be used to hold anything you want. Its very flexiby because the “head” rotates freely (or you can lock it) and the whole vice can be moved around the base.
 

Fill the bottom part of the sphere with sand, to make the whole vice bottom heavy. (this is required for a better experience)

You will need a bearing.

Bought a pack of 10 on Amazon. Should be easy to find.

Bearing size is:
6803ZZ 17x26x5mm (ID x OD x Thickness)

Instructions:

Assembly should be straightforward but there are 2 important points:

• Fill the bottom half of the sphere with sand and screw the lid in

• Glue the handle with the tool key and the top of the jaw with the bottom of the jaw. (these were printed separately for print quality purposes)