Proximity switch holder/fan combo

thingiverse

I wanted a cooling system that could efficiently dissipate heat from the extrusion when crossing bridges, so I redesigned my previous proximity switch holder to integrate a fan mount and a precision-crafted nozzle director. This design tweak has been specifically optimized for use with a REX hot end setup. To simplify the removal of support material, I employed a coarse level of infill. The entire component was 3D printed in PLA, allowing me to successfully test it without overheating the hot end. During this trial, the fan was disabled and an ABS print job was executed without causing any melting at the nozzle's extremity. The hot end's maximum temperature during this experiment reached a peak of 245C when the fan was switched off.