Pneumatic Sponge Ball Accelerator - Making of
Jun 25, 2014Public
Photo: Gears made with Matthias Wandel's "Gear Template Generator": https://woodgears.ca/gear_cutting/template.html
Photo: The airflow "H-bridge" assembly
Photo: A sponge ball container bubble with stirring mechanism - the motor was too loud and too ugly, so I replaced it later
Photo: This part holds the two plexiglass half spheres together
Photo: Gluing the plastic parts of the optical sensor
Photo: Gluing 500 strands of optic fibre for the decoration of the sensor
Photo: Testing the optic fibres
Photo: The hand sensor in close-up: Optic fibres are looking good
Photo: The hand sensor from its back
Photo: Painting all the little wooden parts
Photo: One finished ball container bubble. Balls will enter and leave at the bottom while air enters and leaves on the top
Photo: Both ball containers in a temporary mount
Photo: The electronics consist of an Arduino Ethernet, a couple of transistors and an FTDI board
Photo: Another look on the electronics
Photo: Mess in the workshop while wiring up ten flourescent lamps
Photo: Hopefully, this arrow will attract people to play with the installation
Photo: Close-up of the arrow: A disco ball motor in the front wi spin the whoe thing slowly
Photo: The arrow is almost finished!
Photo: The complete sensor assembly: A lit up tube spins below the sensor. Written on it are the operating instructions