3Dtje Extruder Motor Fan Mod

I push the 3Dtje printer to print at 120mm/s and I pushed the extruder motor current unnecessarily high. The extruder gets hot enough to deform and sort of melt the filament if it sits for too long. I needed a way to keep the filament cool when the extruder and filament sit for a few seconds otherwise, the filament would deform and jam in the bowden tube.

This is exactly the fix I needed!!! Thank you to AJsRaceway for the awesome model to build upon!