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SBU MEC 203 Baddie Engineerz’ Hoverchair Design on PTC Creo plus Sick Commentary by CADmasterFang

SBU MEC 203 Baddie Engineerz’ Hoverchair Design on PTC Creo plus Sick Commentary by CADmasterFang


Hello. This is our team’s submission to MEC 203 final project. Our team’s design takes departure from regular hover board designs in that we featured a very large 40-inch diameter wheels in place of normal 10-inch wheels that you’d normally find on regular hover boards. We also include a seat so the user can sit on the hover board to operate the device instead of having to stand. our design features 6061-T6 aluminum hubs and they have carbon fiber spokes coming out of them attaching the rim to the hub. The hovered board, or as you call the hover chair because it crossed it bridges the difference between a hover board in the wheelchair, features high powered gear motors that drive the device. And you can, once I turn visibility off, see where the gear motors are located. Your motors are located under. The gear motors you can see cavities in the injection molded ABS plastic of the the hover boards chassis; and the cavities are there to house the electronics are our integral to the function of the hover chair. The battery pack will be situated under right under this seat. As regard to tolerances the injection-molded plastic has about 1/10 of inch of clearance between the screw that attaches the clam shell chassis together so that when the user puts together the hover chair they don’t have to worry about the screw interfering with the material of the chassis. The same goes for the screws used to screw the the chair to the upper part of the chassis. You can see that there’s a there’s a generous bit of clearance between the screw and the the hole where the screw fits just a lot the counter bore slots the screw turns into. Turn visibility back on… you can see that the top part of the chassis features a mud guard so – it prevents dirt and debris be being kicked up by the wheels and getting to the rider. (unintelligible) When you display the model in wireframe you can see that the carbon fiber spokes and have a quarter-inch approximately quarter inch gap between the between the wall of the rim. And as for radial clearance there’s about 5-thousandths of an inch gap between the bore of the hole where the the spoke fits into and the spoke itself. These clearances are to account for the tolerances of the manufacturing processes of the carbon fiber spoke before they are epoxied and attached to the rim and the aluminum hub. The aluminum hub also has its the same five thousands of an inch of tolerance at five thousandth of an inch oversize around the carbon fiber spoke. Here’s our motion simulation for our project. (gibberish) As you can see the wheels move as how they’re intended. thank you for watching Project by Alex Chen and Fang Zhou Yu. Commentatry by Fang Zhou Yu

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