Motor and Drive Train

The model is rotated by an E20R motor driving the GRB via a driving band, primary gearbox, sprocket and chain, secondary (4 speed) gearbox, and driveshaft. The motor and drive system are shown in Photo 7. Add motor and drive Pic 7. The long driveshaft keeps the gear shift out of range of the jet planes, thus avoiding life threatening injury to the riders. The motor needed the full 20 volts DC to drive the roundabout at a realistic speed. This was provided by a newly acquired "Compact Switching Power Supply" with an input range of 100-240 volts AC, and an output range of 5-24 volts DC at 4.3-1.5 amps. This is available from EfstonScience in Toronto (Product No. PSSMV7U).

While the gear shift works quite well, I am not sure that it is ready for the rigours of a three day show, and so I may just keep it on the inside of the display for operation only by skilled technicians from CMAMAS.