3d Print a water cooling system for a hotend (1 reply)

I've seen the water cooled hotend before but the cooling block requires machining and must be made out of metal, my first idea was a block thst went on the outside of the peek that was fully 3d printed however I was worried about heat transfer, what i came up with is a cooling block that goes around the PEEK but there is a open hole for the PEEK so the water is touching it , then use RTV to seal it up. Thoughts? I have a steve's hotend so my hotend and peek is alittle bigger then some.