X Axis Stepper Cooling System

thingiverse

Scale this model up to 104% to fit comfortably. Also, note that stepper motors without a notch between the end plates and middle section won't work with this design due to smooth corners on some steppers. This is an effective NEMA 17 Stepper motor cooling system that keeps my motors at close to room temperature. My old motors used to get scorching hot, but now they operate within a comfortable range. To assemble it, you'll need four M3 X30mm screws and four M3 nuts. Choose between using a 50 mm fan or purchasing the pre-installed 40mm fan in an extruded aluminum heat sink from Amazon. For better performance, consider buying thermal adhesive to conduct heat directly into the sink instead of relying on convection heat. You can find this product on Amazon as well. However, keep in mind that the thermal adhesive won't hold the heat sink firmly due to gravity when mounted vertically. If you decide to build it, please share your results! Out of all my designs, I've only had one successful make so far, which is quite disappointing. Print Settings: Printer: Prusa i3 Rafts: No Supports: No Resolution: 0.2 Infill: 30% Notes: I printed the model with a 0.5 mm nozzle and 0.2 layer height, using three or four perimeters for added solidity. If the holes don't thread the screws perfectly, drill them through and use nuts instead. Have fun building!