Windup Bunny 2 With a PLA Spring Motor and Floating Pinion Drive

myminifactory

Human: https://www.youtube.com/watch?v=fcOHOBSCXjM\r\nWindup Bunny 2 is a significant upgrade to my original Windup Bunny, boasting dual floating pinions for all-wheel drive performance. Despite its larger size (1.5 times) and heavier weight (120 grams versus 64 grams), the Windup Bunny 2 runs faster and farther due to its advanced design and stronger spring.\r\nI've previously designed rear-wheel drive floating pinion models that harness gravity and rotational momentum to disengage the rear axle from the spring motor when energy is depleted. In contrast, Windup Bunny 2 is a more complex all-wheel drive system requiring both front and rear axles to disengage from the spring motor for coasting or push-pull functionality. To achieve this, I've incorporated a rotating dual floating pinion carriage with a substantial rear mass that can disengage both axles when the spring motor energy is depleted.\r\nThe Windup Bunny 2 has become another beloved toy among our kids and grandkids, offering both wind-up and push-pull fun for family members of all ages. While it's more robust than its predecessor, this design requires patience and finesse to print, assemble, and test successfully.\r\nAs usual, I've probably overlooked a file or two, so please don't hesitate to point out any errors you may have encountered. I'm always learning and appreciate your feedback.\r\nDesigned using Autodesk Fusion 360, sliced with Cura 3.5.0, and printed in PLA and Tough PLA on Ultimaker 2+ Extended and Ultimaker 3 Extended.