Dual stage axial fan
Description
3D printed dual stage axial fan. This was designed as an airbrush booth fume extractor, but it's so loud it will never be used as such. DISCLAIMER: THIS THING IS NOT A TOY! I AM NOT RESPONSIBLE FOR ANY DAMAGE OR INJURY DERIVED FROM IT'S USE. It's designed to spin at more than 20000rpm and it has enough kinetic energy at full speed to seriously hurt you. Take all safety precautions when operating it, including but not limited to the following; - Wear personal safety equipment when operating it, expecially safety glasses and earplugs. - Avoid brittle materials like PLA. Use PETG or ABS. Make sure yeld stress of the filament used is at least 25MPa. - Do not change printing orientation of rotating parts. - Make sure your printer is properly tuned and printed parts are solid. Do not use less than 4 perimeters and 25% infill for rotating parts, 2 perimeters and 15% infill for anything else. - Ensure assembly is properly secured and shaft is balanced before running at full speed. Secure rotor blades to shaft with epoxy glue during assembly. - At all times monitor vibration levels. Always make slow speed runs before throttling up to full speed. - If using steel bearing, limit runs to a few minutes and periodically disassemble compressor stage to check for thermal damage to the shaft and bearing housings. - Use only open or shielded bearing. Do not use sealed bearings as the heat generated by the seal could melt the shaft or the bearing housing. - Do not overspeed. Maximum rotating speed is dependent on material and print settings and should properly be calculated or sperimentally determined beforehand for each unit. Test runs videos: https://www.youtube.com/watch?v=qRQPLZ2gk0I https://www.youtube.com/watch?v=5Ozb7maTPjQ
Statistics
Likes
87
Downloads
0