Simple Ball Bearing Car

cults3d

https://www.youtube.com/watch?v=GLzZMUE9Gac Describing a project that showcases rapid prototyping skills, "Simple Ball Bearing Car" is designed, 3D printed, assembled, and tested in under one hour. A single piece chassis made from 3D printing material serves as the foundation for this car, featuring four neodymium magnets (6.35mm diameter by 1.6mm thick) that function as axles and four ball bearings (14.5mm or 9/16" diameter) used for wheels. This combination creates a simple to print and assemble car that can roll quite far on smooth surfaces, making it an ideal "first 3D printed" project for kids and grandkids. The chassis was 3D printed at .2mm layer height with 20% infill and no supports, completing in around 25 minutes. Next, slip joint pliers were used to press the four neodymium magnets into the magnet sockets in the chassis. Finally, the four ball bearings (one each) were connected to each of the four neodymium magnets, and it was ready to roll! On a smooth wood floor, this model will coast 30 feet or further. When working with younger kids and grandkids, please use caution around the car parts as they are small and easily separable. The neodymium magnets can be dislodged from the chassis, and the ball bearings may separate from the wheels. This project was designed using Autodesk Fusion 360, sliced using Cura 4.1, and printed in PLA on an Ultimaker 2+ Extended and an Ultimaker 3 Extended.