MISSION VIEJO – Kaleidoscope Entertainment Center in Mission Viejo held its Purple Hearts Campaign Feb. 1-14 to benefit Freedom Is Not Free, a nonprofit organization that helps meet the finan… ...

But [Pete] went with several 3D printed parts rather than repurposing PC fans. In the foreground you can see the potentiometers which adjust the motor speeds. The knobs for these were all 3D printed.