Pics attached. Help creating a CPU water block mount adapter for G4 Cube? I have a Nomad Pro

@chemist_slime

It sounds like you have everything you need, but I would still test cut it in Acrylic first.
You can pocket down 1.375mm into the 1/8th material to the desired 2mm thickness, it is added machine time, but you get a part made.
Its going to take awhile -about an hour is my guess, depending on the step over.

I adjusted the Carbide Create file and attached it below.
Note: Units are changed to MM now.
Toms test Brackets 2mm thick.c2d (1.9 MB)

To reduce the part thickness I added a Surfacing Pocket Toolpath to the Carbide Create file (1.375mm deep).
This should bring the thickness to 2mm, but please double check the whole file- Im just using the info your giving me.

Then I increased the max depth of the other previous Toolpaths by 1.375mm as well to maintain the desired part dimensions. (please double check)