Press On NEMA 14 Motor Fan

thingiverse

Press On NEMA 14 Motor Fan Intro I recently bought my first 3D printer via Craigslist--a Solidoodle 2 Pro. It's a cute little printer but the Devil is in the details and many stock features essentially need upgrading or workarounds. In this instance, my stock Solidoodle 2 X-axis motor was so hot to the touch that it startled me--it had neither a heat sink nor fan. The Y and Z axis motors wick away heat because they're bolted directly to enclosures metal frame. My first fix was to super glue a box fan onto a generic part printed from Thingiverse. The fan was about twice the sizeof the motor. I wanted something smaller. I had an old ATI graphics card laying around with a 12V Sunon 125010VX-A ATI graphics card fan and having just completed the Instructables 3D printing course with Fusion 360 decided to apply my newly learned skills to designing a part around the fan and the motor. Print this thing and screw in the fan with logo side facing out (see photos). Press fit onto NEMA 14 motor to provide constant cooling for the Solidoodle 2 Pro X-axis motor. I soldered headers onto my stock Sanguinololu board for 12V and GND. It might also be possible to splice into the extruder fan wire to provide power. The motor now is cool to the touch even during 10+ hour prints. References https://www.aliexpress.com/item/Free-Shipping-For-SUNON-125010VX-A-12V-2-3W-ATI-graphics-card-fan/853303388.html 1.8° Nema 14, Size 35mm High Torque Hybrid Stepping Motorhttp://www.smartautomation.com.cn/ProductShow.asp?ArticleID=500 Good photos of the PCB where you'll connect 12V DC fan to power http://blog.rona.fr/post/2014/09/14/Adding-a-fan-to-a-Sanguinololu-v1.2 Print Settings Printer Brand: Solidoodle Printer: Solidoodle 2 - Pro Rafts: No Supports: Yes Resolution: .2 Infill: 30% Notes: Printed out of Hatchbox Gold PLA with E3D hotend at 185C unheated glass bed covered in blue painters tape. How I Designed This Imported the excellent Complete Solidoodle 3D model into Fusion 360 and designed to fit. Several outtakes and bloopers. I've also imported the STL from Fusion 360 into SketchUp and played around with it and all seems well no bugs in the solid. Tolerances allow press on fit with my printer. You might print a few layers and kill the print and test fit. Custom Section Fusion 360 Link Download the project/step file here: http://a360.co/2efvxxY