NEMA 17 (42mm x 47mm) stepper motor cooler. Suits 40mm x 40mm x 10mm fan.

cults3d

Both left and right exhausts are designed to avoid blowing directly onto the printer bed. It's recommended that prints be made using ABS with at least 70% infill to prevent warping issues. A tight fit is necessary for fans, as screws may not be required. However, if a fan clicks while running, it indicates that the fit is too tight and can be resolved by lightly sanding the side of the fan. Update 1 has been added, featuring a version with cable management and zip-tie holes. An updated "twin fan" design has been incorporated to enhance cooling for the head. Upon enclosure during ABS printing, the head/hot end inlet becomes excessively hot, causing ABS layers to remain soft and increasing the likelihood of jams due to rapid material heating in the nozzle.