As far as hacks go, our favorite has to be the clothespin steering. [ossum] only had one electronic speed controller, so he used a servo to actuate a pair of spring-loaded clips, alternating ...

If your memory of slot cars as a childhood toy is of lightweight controllers with wire-wound ... given the amount of potential there is in them for electronic improvement. Here’s one from ...

Electronic Throttle Bodies are used in traditional internal combustion engines to control the speed of the motor. This device consists of a valve attached to a spring and driven by a motor. This ...