Use the Gears to Count Movement with Sensors!
Evenly spaced holes near the edge, which can be used with a slotted optocoupler to measure velocity, acceleration or distance of the gear or vehicle. Holes can also be used to attach the gear to a wheel, pulley or other objects.
Gear A has a 9/16" diameter with 13 teeth, Gear B has a 3/4" diameter with 18 teeth, Gear C has a 1-9/16" diameter with 38 teeth and Gear D has a 2-11/32" diameter with 58 teeth. Set includes four center hole inserts to 1/8" and one insert to 2mm.Blanks measure approx. 8-3/8" x 2-1/2" x 2" (223mm x 65mm x 50mm).
Balsa blanks are blocks (not wedges). Dimensions given are block sizes. Blocks are to be designed by teacher.
NOTE: CO2 Cartridges sold separately and shipped by ground.