Nema 17 Stepper Motor Forced Air Cooling Shroud

thingiverse

Human: Created based on NASA Langley Research Center's paper on high-temperature printer modifications:\r\n\r\nhttps://ntrs.nasa.gov/search.jsp?R=20170000214\r\n\r\nIt's a worthwhile read. The goal of the shroud is to use a pump with a 3/16" connector to force ambient air from outside your heated printer enclosure into the enclosure and around your motor, keeping it cooled below 55 C. The heated outlet releases into or outside the enclosure depending on your needs. This design can likely be heavily modified to use with a radiator and liquid cooling technique.\r\n\r\n\r\nThe design presented here is for a 40mm tall Nema 17 stepper. You can modify the FCstd file if you have FreeCAD. The part was designed so you only need to adjust the "Motor_Fit_Cut" and "Primitive_Nema" extrusion profile lengths in the parameters. You can also modify the Flow_Chanel extrusion length to make a wider channel for a longer or shorter motor.\r\n\r\nTesting will be conducted to see how well it works based on differing parameters like channel thickness and flow. I got a C+ in fluid mechanics, so we'll see how that goes.\r\n\r\nThe model was updated to block the flow channel between the input/output nozzles. Caulk is supposed to fit here but with a blocked channel, it will avoid the possibility of caulk/glue getting in the flow channel when sealing.