Fan adapter for MPX.3

thingiverse

I've been printing 3D models for just a few months now, but already I'm encountering some issues with extruding and layer shifting. This tells me that my stepper motor driver is overheating and shutting down due to overtemperature. To combat this problem on my MPX.3 controller, I created a 40mm fan adapter to focus airflow directly onto the drivers' radiators. The board itself is a customized version of the MKS Base. This 3D model is specifically designed for owners of identical controllers (without an E1 driver installed) used in some Prusa i3 clones branded as JGAURORA Z. After installing this adapter, I noticed a significant drop in temperature - the radiators cooled down by 35 C (initially at 70 C, then reduced to 35 C). If you plan to measure radiator temperatures using a metal thermistor, do it on test prints first, as the driver may fail temporarily and potentially damage your printed object. If you experience any issues with this fan adapter during printing, please let me know. 1/13/2017 - I added a squat version of 25mm only, hoping that air pressure will be sufficient for even cooling of all drivers. Print Settings: Printer Brand: Printer: JGAURORA Z - 605S Rafts: No Supports: Yes Resolution: 0.2 layer, 0.4 nozzle Infill: 100% Notes: As a probe print, the adapter was designed to stop printing after the first 11mm just to verify its size and alignment with the MPX.3 controller. If any scale discrepancies are noticed, they should be measured and corrected by adjusting the print scale (1-2%). I expect that the controller software and configuration match my settings. Post-Printing How I Designed This I designed this in OpenSCAD and printed a probe interface part of the adapter (five initial prints were unsuccessful). However, I suspect that the fan adapter may still require improvement. If you have any suggestions on how to enhance it, I'm open to implementing some changes.