Mark the Brass for Drilling

This demonstration will show the construction of a single joint made with the 1/4" balls and one screw.

Begin with two strips of 1/4" brass. These can be picked up at hobby or hardware stores.

Mark the hole pattern for all three holes on one of the strips at the end. I use a Sharpie marker, probably a fine point would be best. The hole spacing should be at least 1/4 of an inch apart, center to center.