PCB cutting guide (customizable)

This is a cutting guide designed for use with printed circuit boards. It can also be used for accurate marking of other sheet material. Several sample STL files are provided but this script is really intended to be customized to your needs.

Main features:

* Metric, decimal inch, or fractional inch rulers
* Arbitrary width and depth
* Solid or open-grid base
* Rulers are flush with board top by default
* Any or all edges can be open (ruler flush with base) to handle over-size boards
* Rulers can be numbered or plain
* Most dimensions are customizable

With this guide one can achieve extremely accurate cuts. Using the guide and tools in the first photo I was able to cut the board shown into two equal-sized pieces with an accuracy of better than 0.01 mm (the resolution limit of my calipers).

# Usage tips

Mark one corner of your circuit board with ink. Align this corner with one of the guide's corners and perform all measurements from there. This compensates for an