First off you are awesome and thank you. I measured in metric guessing that the 3D printer surely doesn't use SAE.
Width
Height to the check engine light.
Height every where else.
Check engine light bulge width.
Depth
Where the CAT 5 cable connects for data on the left side of the REM.
CAT 5 connection width
Cat 5 connection width.
Hopefully this is what you will need. If you need any other measurements let me know. Thanks again.