JGAurora / JGMaker Magic 3d Replacement Fan Shroud

thingiverse

This is a replacement fan shroud/air duct for the 3D magic. It works. Tight fit. Slightly less directional area then the stock air opening, but slightly faster air too. About 2 millimeters of clearance around the hotend for both nozzles. Could likely be improved, and still has about 2mm to play with under where the current air jets exit, but I wanted to keep plastic away from the nozzle, and also allow adjustments for the heat break and nozzle if needed. Bridge test has the default and my design. At worst it's the same as stock. I used a bowl of water and pepper to test where the air jets hit, so if you don't want to use smoke to see where the air is hitting yourself, there's an idea. V4 has a longer fan duct for the stock fan, V6 is shorter to take less force to fit into the extruder casement. Both should work identical otherwise.