NEMA17 Active Cooler and Wind Shield

Note: I don't expect anyone will download and print this model as it is, because it is very tailored to my set-up. However, I thought it would be good sharing this experience, in case someone faces a similar challenge.

I installed some powerful NEMA17 0.9° stepper motors on my CroXY 3D printer. Unfortunately, they draw a lot of current and become pretty hot during operation- not a good precondition for my plans to enclose the printing chamber. 

I first added a passive heatsink, which lowered the temperature of the motors only by a few degrees. Hence, this set-up requires active cooling but I want to avoid blowing air uncontrolled into the building chamber. So I constructed a fan mount with a wind shield on the side facing the printing object.

This measure did indeed reduce the temperature of the stepper motor by about 20°C.

Endnote: Although, this is a success, I will go for a water cooling system for my X/Y stepper motors later- but that is another story…