MKS Gen 1.4 Box for 3030 frames

This is a quick modification of nelu22's MKS Gen case to fit 3030 frames. I've slightly enlarged the case and added holes that work for my Haribo 3030 printer. The lid has space for a fan to cool the stepper drivers.

My modification was done quickly, but it works for me - however given the huge size of the print, I would double check it suits!