Got my CM5 and heat sink. Printed up a cover to test. Seems to be working pretty well. As I haven’t recieved the new board from vileer, I’m powering the active fan externally for now.
normal workload has the unit going at about 40-51deg. It has not gone more than 55deg yet. My ambient temperature is 32-36deg so that’s pretty good.
rear enclosure is 3D printed PLA. Not great, but works for now. Have a better nylon print in the way with better temperature characteristics. 
Will share more as I get more set up.
