Hrs: 8

Drill jig CAD/CAM

To match-drill the holes for the main spar carry through without damaging the original holes I designed a drill jig.

Multiple iterations were done, this is the final CAD:

Iteration of the multiple designs:

Works perfectly, the jig has a tight fit in the 4.1 mm hole and allows for a 2.4 mm drill to drill a pilot hole perfect in the center: