Summary

This is a jig I designed that takes a standard thin double sided razor blade and cuts 1/4" triangle stock from 1/4x1/4" balsa strips. It helps if you dull one side of the razor so that it doesn't cut into the plastic before setting it in the slot.

Put razor in slot.
Push balsa square stock through the square hole and voila!

Couldn't find anything that did this… and at $2.50 per 36" length of triangle stock…. needed it.