How I Designed a 3D Printed Windup Car Using Autodesk Fusion 360.

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I've Designed a 3D Printed Windup Car Using Autodesk Fusion 360 You're probably wondering why I'd design, print, assemble, test, and publish yet another PLA spring motor floating pinion car when I've done it several times before. Well, this tutorial is a four-part video series detailing how I designed this windup car with a floating pinion drive using Autodesk Fusion 360, along with the completed CAD file "Windup Floating Pinion Car.f3d" in case you want to modify my design or create your own custom version. If you're interested in learning more about my design process for a PLA spring motor powered windup car with floating pinion drive, this tutorial is perfect for you. I'll walk you through every step of the way, from designing the chassis and axles to creating the wheels and assembling everything together. Designing the Chassis The first thing we need to do is design the chassis. This consists of two frames: "Frame, Right.stl" and "Frame, Left.stl". To gain additional ground clearance, I modified the gear train layout in this video. Then, using the PLA spring motor and gear train components, I assisted with laying out the right frame. Next, we need to design the axles and wheels. There are two unique axles: "Axle, Gear, Floating.stl" and "Axle.stl", as well as one unique wheel: "Wheel.stl". After centering the car assembly, I designed the rear axle and then copied and pasted it to create the front axle. Designing the Axles and Wheels After designing the axles, we need to position them correctly. Next, we'll design the wheel, which will be used for both the front and rear wheels. To calculate the distance the car will travel under spring power, I used the following equation: (pi * wheel diameter) * 1.25 * 9 = 1678.788574262046mm This works out to approximately 5.5 feet. To test this math, I fully wound the PLA spring motor and held it firmly on a smooth surface alongside an extended tape measure. When I moved the car forward by hand, the floating pinion gear indeed disengaged the PLA spring motor from the drive axle at exactly 5'6". Designing the Chassis After designing the chassis, we need to position the gear train components correctly. To gain additional ground clearance, in this video the gear train layout is modified. Next, we'll design the axles and wheels. There are two unique axles: "Axle, Gear, Floating.stl" and "Axle.stl", as well as one unique wheel: "Wheel.stl". After centering the car assembly, I designed the rear axle and then copied and pasted it to create the front axle. Finally, we'll design the wheels. There is one unique wheel: "Wheel.stl" designed in this step.