Customisable Prusa i3 MK2 Rambo / Controller case - BASE

### You need firmware??
If you're building a MK2 clone with a RAMPS based board, you've got yourself a MK42, then you might want to run a port of the prusa firmware. See https://github.com/slippyr4/Prusa-Firmware

## What is this?

This is a customisable, parameterised rework of the Original Prusa i3 MK2 case. Find the original in Prusa's github repository at https://github.com/prusa3d/Original-Prusa-i3/tree/MK2

The original SCAD is designed around the Rambo Mini 1.3 board and I wanted t