17th-Jul-25, 07:35 PM
As we approach a definitive answer to what a DIGITAL slotcar brushless system should look like there are two useful in-market reference points (perhaps more?):
1/ Sensorless brushless motors have found excellent application at national/international level for ANALOG slotcar racing. While the high end variants from the likes of NSR appear full blown designs, many of the less expensive motors appear to be derivatives of ‘drone’ outrunner motors with winding ratios and mechanical fixing points re-designed to meet slotcar requirements.
2/ Meanwhile sensored brushless motors prevail in the radio controlled model racing car world with motors designed for 1/28 scale cars readily available and at affordable prices. By contrast these are inrunner motors. They have a small neat socket for interfacing with the Hall sensor ICs.
My experimental development effort uses the latter approach - the requirements for 1/24 scale digital slotcars and 1/32 scale digital slotcars conveniently straddle this 1/28 scale design point.
I have a whole range of brushless sensored motors attached in NSR motor mounts ready for trials with the new brushless driver module which I am developing. There is a clear way forward on this sensored brushless slotcar project which parallels the previous development of 1/28 radio controlled cars. So all is looking good.
But let’s add some extra fun … is it possible to add a Hall sensor PCB to a state of the art slotcar unsensored brushless motor? Here the new Slot.it brushless motor is a prime candidate.
So the question: can three Hall sensor ICs be added to a Slot.it slotcar unsensored brushless motor to transform it into a sensored motor? Let’s see…
c
1/ Sensorless brushless motors have found excellent application at national/international level for ANALOG slotcar racing. While the high end variants from the likes of NSR appear full blown designs, many of the less expensive motors appear to be derivatives of ‘drone’ outrunner motors with winding ratios and mechanical fixing points re-designed to meet slotcar requirements.
2/ Meanwhile sensored brushless motors prevail in the radio controlled model racing car world with motors designed for 1/28 scale cars readily available and at affordable prices. By contrast these are inrunner motors. They have a small neat socket for interfacing with the Hall sensor ICs.
My experimental development effort uses the latter approach - the requirements for 1/24 scale digital slotcars and 1/32 scale digital slotcars conveniently straddle this 1/28 scale design point.
I have a whole range of brushless sensored motors attached in NSR motor mounts ready for trials with the new brushless driver module which I am developing. There is a clear way forward on this sensored brushless slotcar project which parallels the previous development of 1/28 radio controlled cars. So all is looking good.
But let’s add some extra fun … is it possible to add a Hall sensor PCB to a state of the art slotcar unsensored brushless motor? Here the new Slot.it brushless motor is a prime candidate.
So the question: can three Hall sensor ICs be added to a Slot.it slotcar unsensored brushless motor to transform it into a sensored motor? Let’s see…
c

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