Delta Scroll Saw model 40-430 - blade changer

The Delta Scroll Saw model 40-430 (and others) needs a custom tool to tighten the blade clamps. This consists of a long 4mm Allen key which fits the bolt, a 5mm threaded rod which fits into a hole which locates and stops the blade holder from moving whlte the bolt is being tighten or loosened . The two metal bars are held apart by three spacers. In this design, one end of the spacer has an hex hole for an M5 nut, the other a round hole for the hex key.

Open SCAD supplied in case modification is needed. The distance between the two rods is critical.