"Evolution 1" Cooling System for Black Widow Volcano Edition

Note: this design is experimental and untested, so print at your risk. If you do print, be the first to report any success or failures.

This is the Beta "Volcano Edition" of this duct: http://www.thingiverse.com/thing:2251893

Users at this stage must cut a hole through the center of the nozzle in the right size and location and not leave a gap greater than 0.5mm around the heater block.

This part cooling duct may not be compatible with other heat-break duct/BLTouch mounts, so best to