Rail Road Crossing Gate for G Gauge
thingiverse
Thing 2352179 slightly redesigned. This is a rail road crossing signal in 1:24 scale for G gauge trains. It used 10mm LEDs for the "target" and 2mm LEDs on the crossing arm. The servo is a 9 gram servo 23x12x22 mm I got from Ebay. a "Tower Pro Microservo SG90" http://www.ebay.com/itm/10X-180-9g-Micro-Servo-SG90-Motor-RC-Robot-Helicopter-Airplane-Remote-Control-/291866934731?epid=526041964&hash=item43f49ffdcb:g:2z4AAOSwzJ5Xak-k I used an arduino to sense the train optically, operate the servo and flash the lights. Uses 7/32 metal tube for the vertical post and 5/32 to hold the target lights. The plastic on the "igloo" of the target lights should touch the plastic of the "manifold."
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