Prusa i3 MK3 Extruder Stepper cooler

thingiverse

RCCDChief12 provided the link to the correct EINSY-connector. THANKS! https://m.aliexpress.com/item/32975515765.html?pid=808_0000_0101&spm=a2g0n.search-amp.list.32975515765&aff_trace_key=&aff_platform=msite&m_page_id=7846&y9m0pYbHmJM9N0UL6ygPtA1578268853056&browser_id=b41140f3c4f9417d8dba83ec21bb49a0&is_c=Y Added a new version that directs airflow to the sides. This might prevent warping as the stepper cooler doesn't blow air on the printing bed. No supports needed. Prevents the extruder stepper from getting too hot. Reduces heat creep into the extruder gears which softens the filament between the gears. I noticed that, especially when printing with high bed temperatures, the extruder stepper gets very hot. The stepper might be made to take such temperatures but I just like things to be nice and cool. I secured it with CA-glue on the stepper. There are two surfaces facing the stepper where you can apply glue or double-sided sticky tape. There are several ways of connecting the new fan: You can take power from the existing extruder cooling fan or as I made it, build a 24v to 12v step-down converter into the EINSY-RAMBO case and route a new 12v cable to the extruder. Also, there is a 5V connector on the EINSY where you can plug in the new fan. Version 2 uploaded. It fits the Nema17 Stepper better now.