Parametric Project Box

Customisable project box (inspired by https://www.youtube.com/watch?v=lBK0UBjVrYM).

Designed to accomodate one standard green double sided protoboard with a power jack, wall mounting holes and a snap fit lid.

Customiser allows protoboard mountings to be removed, protobaord size to be specified, power-jack hole to be removed or re-sized and removal or sizing of mounting holes as well as changing the overall size of the box.

When entering protoboard sizes in the customizer measure the full size of the board, the script will automatically center the mounting spiggots 1.75mm from each edge.

###Update v0.2 (5th March 2019)###
Added support for holes in lid. Up to three rows/columns (choose and blank the other). Specify array of hole diameters for each row/column. Holes will be equally spaced in the row/column of choosing.

It is not recommended to use both rows and columns as this can lead to unexpected results in the placement of holes, although it can be done with care. Ea