Digital Microscope Stand Base (Split)

I needed the larger base from Projects' digital microscope stand (https://www.thingiverse.com/thing:23984660) but couldn't fit it on to my bed without crashing the print head (causing some layer shifts) so I've split it into 3 parts (keyed so no glue needed).

Please visit the original design for the other parts, the microscope can be bought fairly cheaply from Banggood.