This is a size 4 gauge (~5 mm) with a stud to attach to a connector. I have not yet tested this connection, so it may need glued in order to be a permanent attachment. I designed this in tinkercad. Feel free to remix and add your own designs to the connector as I have made it a plain circle.

If you print this, please share your make. I would love to see it!

Supports: No
Infill: 100%