1st prototype

5/20

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1st iteration

What to fix

• Lens holing parts doesn’t hold the lens well

• Gear rack stucks

• Motor shaft slips in the gear hole. Need to adjust the size or do something to make them both fit…

2nd iteration

• Lens > added another layer to confine lens and it worked

• Gear > added spacers between the motor and the mount to make room in rack and pinion compartment. It got better but still need a refinement.

• Sliping motor shaft > Adjusted the size of gear hole, still need alternative mean to make firm connection between the shaft and the gear.

1st prototype test run

After assembling all the essential components, I wired servo motor, LED (installed three bullet-type LED tentatively), ToF range sensor and arduino up.

Final project : first prototype from kai naito on Vimeo.

What to fix

• ToF range sensor can only measure 1m or so in “short range mode”. I need to set it to “long range mode”. However, it only can range to approx 2m max. Considering alternative range sensors.

• LED stage (which is linked to the rack and the gear) loses its absolute position as servo motor slips.

What to add

• Fibonacci LED display

• Power LED board

• LED driver board for power LED board

• Motion sensor to detect human approaching