The K'nex DC motor is experiencing noticeable wear. The gears are beginning to get worn down from repeated grinding and the motor is losing power from being run under heavy load for several hours per day. So today I bought a 12v geared motor which has an axle perfect for K'nex gears. The motor is connected to a variable speed/direction adapter and powers the ferris wheel easily, hardly straining at all. This new power system should prove much more reliable as the rest of the carts are added.
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