Space Mushroom Remix: UFO style knob with LED light

UFO style knob with LED light.

It's kind of huge, but comfortable in your palm. I print the knob with fuzzy skin & random seam position, result in nice seamless surface. 

• You'll need a small push spring coil to better support the weight of the knob and your hand, as the springs of the 3 “analog joystick sensors with board” are too weak. Put the spring assembly (yellow pad + spring + yellow plug) on the triangle shaft under the knob, no need to screw or glue. 
• To stabilize the base, I stick some thin lead strip inside the base perimeter. The base total weight about 200 grams including the arduino pro micro.
• Base lights are 5 volts LED strips. I tap the power directly from the USB cable red (+) & black (-) internal wires.
• The original triangle shaft & 3 ball-joints are printed in transparent filament to refract some led lights out.
• Because it's hard to find tiny screws, I just stick the 3 “analog joystick sensors with board” to the shaft with double tape foam, then tied them with some single wire thin cables.  The shaft is screw from the bottom of the base (the original design have a threaded hole).

I create a new round UFO shape knob & base with LED light. Other parts are the same as in the original design by Shiura.