Laser Files

I can’t figure out the laser files. There are some parts (such as the shredder’s blades) that do not have measurements, only 5MM caliber. There are only measurements for a few of the parts while most are only drawings. Does anyone know how does this work? Thanks a lot.

I’m working in shanghai with Xinchejien people and we put dimensions in the files to send them to laser cut.
I’m attaching the files with dimensions.

use this file.
Updated overview

help! Question about the laser files, do anyone know this part need to be 6mm or 3mm? thanks!

Shredder modifications – 1″ Hex Hole parts