Barbie Maker Vette - Glitch Candy Kart
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reference: http://disney.wikia.com/wiki/Candy_Kart
General Info
Planning for wholesale improvement this year building off of the failures from our inaugural 2014 build.
We scored this sweet Baribe Corvette off of craigslist and now aiming for Glitch's Candy Kart from Wreck It Ralph moxie theme.
Specs
- Motor: 36V 500W brushed DC motor sourced from monsterscooterparts.com clearance section due to a nicked pigtail lead
- Controller: 24V 500W cheapo chinese scooter controller
- Drivetrain: Gear Ratio= X:Y with #35 Chain, Dead Axle, Single Wheel Drive
- Wheels: TBD
- Batteries 12V 36Ah
- Moxification: TBD
- Top Speed: TBD
Build Notes
Frame and Chassis
Frame mockup
This powerwheels seemed to be an older vintage as the frame's cross members and steering assembly are made of 3/4" steel tubing. Finding this was a pleasant surprise. We decided to keep the existing frame and steering geometry intact and simply build off of it.
We discovered that the front and rear cross members are not on the same plane (different elevations) due to the steering linkage and we couldn't figure out how to measure their positions as they are bolted to the car's plastic frame. Instead we bought about $5 worth of half inch PVC to mock up a frame and build around the body attempting to minimize any cutting into it. This allowed us to better visualize what we needed and plan for cuts, weld preps, etc.
Frame fabrication
We elected to go with 1/2" square tubing on the frame, because weight. Some of us tried some back of the envelope beam stress calculations to size the tubing and figured that 1/2" tube wouldn't cut it. But in the end decided to go with it and just repair and reinforce if anything breaks or yields.
Several people got a chance to develop welding skills on this. A few kids got a chance to observe as well.
We used a cheapo FCAW 110 V Welding Machine from Harbor Freight that seemed to be good enough for this job.
We tacked welded up the frame on the car body itself and then removed the body to finish the job. The car's body definitely contributes to the stiffness of the assembly. Without it, the frame flexes pretty good about the axle points.
Overall with the body secured to the frame, it feels pretty solid. It passed two separate sit tests.
We'll see how it holds up with the batteries and motor and under race loads.
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Wheels
Wheel sleeve prototype
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Drive Train
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Electrical
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Moxie
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BOM
- Motor: 36V 500W brushed DC motor sourced from monsterscooterparts.com clearance section due to a nicked pigtail lead
- Controller: 24V 500W cheapo chinese scooter controller
- Drivetrain: 11T Drive Sprocket + 80T Driven Sprocket;
- Wheels: TBD
