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ianeagland

Anyone fitted a Heat Sink to a V2 Hot End?

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I will have a proper heatsink on there soon... for now I welded up the hole in the aluminum plate, replaced the brass up tube with stainless steel, and threaded it into the aluminum plate with thermal grease. I reversed the fan direction and ducted it to blow air across the plate. It works very well. I've run temps up to 240* with retracts, and still no plugging.

I'm not so sure that it will work as well with the brass though, as it is much more thermally conductive. With the stock V2 hot end, the whole thing is a melt zone, including the brass up-tube. If you try to actively cool it, I'd guess you will just end up with a large transition-zone (not fully melted or solid), and a bunch of extra friction.

 

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