A friend was getting into bicycle frame building, and asked if I could make an alignment fixture.
Take a visit to the metal monger, and round up the usual suspects. Looks like a plan is forming…
Ready for pickup. Future plans involved a granite surface plate, so I made two separate mounting studs. The outer diameter of the upper clamping nut sleeve will fit inside a self aligning concave/convex washer assembly, retained with the snap ring.
Stud retainer bold head.