Ok, I designed an oil/glycol/distilled water cooling system (I prefer oil as it's electrically non-conductive), dual 1/4" NPT inputs with a single 1/4" NPT output. I only had 1/4" aluminum hanging around for the contact plate, but I have 1" PVC and Acrylic that I could throw into the CNC quickly. Looks like by tonight I will have a working solution to seriously cool these units. I have a flow switch around here somewhere to shut down the units if the pump stops, and I have a spare radiator, fans, reservoir, pump, fittings, etc.

Will post pictures later today when I get the units ready. One question, how does this effect warranty, using a oil cooled system with a no-flow automatic shutdown cutoff switch?

Cheers