Hot Wheels R/C 1:64 Scale Rechargeable Radio-Controlled Racing Cars for On- or Off-Track Play, Includes Car, Controller & Adapter for Kids 5 Years Old & Up

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Side note Idea - micro reed switch in vehicles to stop the steering servo so when you park all the vehicles over some neodymium magnets under the road the steering stops working. (The reed switch / magnets have many other uses)

1/64 RC Drift Cars: A Beginner’s Guide to Miniature Drifting. 1/64 RC Drift Cars: A Beginner’s Guide to Miniature Drifting.

I sometimes use tiny little glass jewelry beads (approx 0.8mm inside and 1.5mm outside) on the sewing pins for .... axil wheel nuts if needed ... Ball Bearings ... thrust bearings ... bushes etc. DIY SERVO CONTROL ARM HORNS are cut from 0.5mm brass sheet as space is very limited inside the cars and you need it cranked forward and I also used a smaller head screw (or grind it) to hold it on as it's usually right up near the windshield. It may have a small white plastic D- bush pressed onto it which turns the trim pot underneath the middle servo case.Also the Majorette's Mustang Boss is 1:61 scale and still looks similar in size to Hot Wheels but it has that little extra space you need for parts and a bigger LiPO and they have more scale narrow width wheels. Now grind away the excess brass around those 0.7mm holes like a v shape as close as you like or the universal joint will bind up and not work if it's still a chunky 3mm wide on the ends .... Each U ends up about 2 x 3 x 1.5mm after grinding down. Another way to do it --- remove gear #5 and discard it and simply glue an axil to both the gear #4 and output #6 and you can cut off the spline outside if you need the servo narrower between the wheels. (If width is ok with spline keep it on as it's good to glue one wheel to it also) On the bus I completely stripped a damaged servo (CORONA DS238MG) for gears and motor and pot and board and reassembled the gears in the alum bus chassis and made new gear shafts and epoxied it all in delicate alignment.

1/64 scale RC conversion DIY how to build - RCU Forums 1/64 scale RC conversion DIY how to build - RCU Forums

Use Emax ES08 or ES09 or similar spec servos (space permitted) if you want a fast and powerful car. Tip ... Re-drill the drive shaft holes in the U after it's folded up (they distort when bending) and then tapper the drive shaft end slightly in your drill and dremel the tapper so it only just neatly tap fits in flush and tight into the holes of the U metal and no further .... then its much easier to handle when soldering.Now assemble with the output spline shaft only and drill through the 3 servo cases where necessary so the axil can protrude about 5-6mm each side of the servo for the wheels. I glued very small pieces of tube or bushing (from inside of old disposable cigarette lighters) inside the hot wheels where they have the recess hole on the outside for the axil ends ...... Because when I grind down the inside of most wheels to get them to a more usable width size (around 4-5 mm wide) it also removes the wheels inside nipple and now the wheel may have excessive wobble on an axil as it has so little meat left to spin on.