thermally conductive filament, mk4s  

RE: thermally conductive filament, mk4s

The only one I'm aware of is this: https://tcpoly.com/purchase-ice9-materials/

Is there a reason you need to print a heat sink as opposed to milling it from aluminum?

RE:

That thermally conducting TPU @hyiger found is interesting. But at best, you could use it to print thermal pads -- thin flexible layers to establish thermal contact between an object and a proper metal heatsink. It's thermal conductivity is only 6 W/(m*K), whereas aluminum has > 200 W/(m*K). 

I'm afraid wanting to 3D print a heatsink using FDM is a fool's errand. You could probably produce something useful via SLS (laser sintering) with metal powder -- if the geometry demands 3D printed parts; otherwise classical milling should be cheaper.

RE: thermally conductive filament, mk4s

Posted by: @hyiger

The only one I'm aware of is this: https://tcpoly.com/purchase-ice9-materials/

Is there a reason you need to print a heat sink as opposed to milling it from aluminum?

Depending on how much heat the heat sink has to dissipate, I would prefer to use metal.

RE: thermally conductive filament, mk4s

No question metal is better, but I'm making a contorted shape that is hard to mill.

You can try copper filled filament - it definitely has a greater heat capacity but it doesn't conduct heat as well as straight metal.

Cheerio,

RE: thermally conductive filament, mk4s

Print 3d model and use it to create a cast for molding?