Oil cooled Nozzle/Barrel

[Richard Holder]

Hi, I am going to 'convert' the M2 nozzle/barrel to an oil/or water cooled version.  This should  be fairly straightforward (based on past experience this means 'will be problematic and take years') .  I will be using a non-pumped heat syphon using a pretty small amount of liquid - less than 100ml which will be in a sealed container on the extruder motor (note to self - please make sure system is leakproof)  and will experiment to see what cooling I can achieve inside the barrel so that the PLA/ABS cannot flow back up the barrel and cause me more problems.  I want the upper part of the barrel to be well below the flow point of the extruding material.
Anyone tried this type of cooling?
I think I am really getting temperature obsessed :-)

Richard

[Earsmith]

Here you go.
http://blog.reprap.org/2012/07/water-cooled-hot-end.html