Hand Cranked Document Shredder

Step 7 Bracketizing: Cross Scribing with Caliper

Choose two edges as "reference edges" and set your caliper to the desired distance. The caliper has hard sharp jaws that make a good scribe. This is an approved technique.
Scratch two lines that cross where you want your hole.

Comments

[leehael]

Yeah? Approved by who?

[Toastalicious]

as far as i know, we used the same technique in geometry class, but using compasses to find the center of a line.