Uploaded September 2026 | Updated September 2026, 3 weeks ago
A video describing a Modernized form of the 1998 Hot Wheels X-V Racers, super capacitor motor powered free running 1:64 scale cars.
I designed the car to fit some basic car dimensions within the 1:64 scale but stylized them to use off the shelf rubber tire wheels and 2mm OD steel axles that come with the wheels. I repurposed the small rectangular motors that come with some 9gm servos but I am also using off the shelf gear that gone in hobby gear list to make it easy to assemble and are designed to fit the 1mm OD motor shaft as well as the 2mm OD axles. I have also repurposed servo gears in the past but those require modification which can be time consuming. To make it more fun and have an indicator light on the car, I added an LED in line with a DC to DC step up converter, so it remains on the full run time. As compared with the original X-V Racers that had an LED, the LED on the latter one would only remain on when the capacitor still had change at above 2.0 VDC level, as soon as it dropped below this voltage the LED would go off, but the car still runs. Using a step up converter Ckt just for the LED mounts it in down to 0.8 VDC. The output of the converter limits it's output to about 350mA, I could essentially run the motor in parallel with the LED at the output, because the motor pulls about 200 mA loaded, under normal running conditions, but if the motor bogs, or starts drawing more current, above the limit of the DC converter, then it risks the converter circuit blowing from excessive current draw. So to avoid this the motor is in parallel at the input with the 3VDC super capacitor. MIA
A video describing a Modernized form of the 1998 Hot Wheels X-V Racers, super capacitor motor powered free running 1:64 scale cars.
I designed the car to fit some basic car dimensions within the 1:64 scale but stylized them to use off the shelf rubber tire wheels and 2mm OD steel axles that come with the wheels. I repurposed the small rectangular motors that come with some 9gm servos but I am also using off the shelf gear that gone in hobby gear list to make it easy to assemble and are designed to fit the 1mm OD motor shaft as well as the 2mm OD axles. I have also repurposed servo gears in the past but those require modification which can be time consuming. To make it more fun and have an indicator light on the car, I added an LED in line with a DC to DC step up converter, so it remains on the full run time. As compared with the original X-V Racers that had an LED, the LED on the latter one would only remain on when the capacitor still had change at above 2.0 VDC level, as soon as it dropped below this voltage the LED would go off, but the car still runs. Using a step up converter Ckt just for the LED mounts it in down to 0.8 VDC. The output of the converter limits it's output to about 350mA, I could essentially run the motor in parallel with the LED at the output, because the motor pulls about 200 mA loaded, under normal running conditions, but if the motor bogs, or starts drawing more current, above the limit of the DC converter, then it risks the converter circuit blowing from excessive current draw. So to avoid this the motor is in parallel at the input with the 3VDC super capacitor. MIA
