Prusa Mk3 Better Thermal Management Extruder Body

thingiverse

This is my redesigned Prusa MK3 extruder body, which I believe provides better hotend heatsink cooling to help eliminate filament jams without requiring a change from the stock Noctua fan.\r\n\r\n**To achieve this, you'll need to reorient the Noctua fan so it pulls air through the extruder over the hotend heat sink.**\r\n\r\nThe results are impressive in my opinion, as the design has resulted in very stable temps with a 0.5º +/- temp fluctuation from the target temp. The hotend now cools down much more rapidly when not being heated, and you can still keep your printers stock quiet Noctua fan. I've uploaded some temp graphs to show how it performs.\r\n\r\nIf you're experiencing filament jams, please try my extruder out and let me know how it performs for you. I haven't experienced any issues myself, so I'm unable to test the design's ability to handle filament jams. I wish I had a thermal camera to do some more thorough testing, but unfortunately, I cannot afford to purchase one.\r\n\r\n-=: REMEMBER :=- This extruder design requires you to turn the fan around so it blows air out away from the hotend heat sink. If the fan is not orientated correctly, this design will not perform as expected.