5.1" BLDC handheld fan

thingiverse

Using leftover museum-tier parts from quadcopter flying to cobble together a handheld fan. You'll most likely want to edit it to fit whatever potentiometer and power switch you've got. PWM generation for the SimonK ESC I'm using is done via an arduino nano - just use the servo.h library for that and scale your poti pin values from 0-1023 to 0-180. Should be just barely enough space in the compartment for the arduino, esc, poti, switch and a 2x18650 holder. Disclaimer: I suck at CAD, so don't be surprised by the millions of random sketches that seemingly make no sense.