Mini Track Loader (CAT297, scale 1:35)

thingiverse

Time to kick off my first RC project. The adorable mini track loader from Zedpi is the perfect one to reimagine! I'm also thrilled with the Bluetooth addition from Backmann - it would be a fantastic feature to incorporate. Inspired by real-life mini track loaders, I've noticed that their main beam mechanics work slightly differently. That's why I decided to start from scratch and aim to replicate the Caterpillar 279D2 in 1:35 scale. A key aspect of this design is the pivot point of the main beam, which not only rotates but also moves horizontally, enabling the bucket to move almost vertically rather than following a circular motion - it's really clever! First things first, I need to tackle the cylinder replacement with rack & pinion. Additionally, I want to drive both main beams (left and right), which will create a more balanced system and potentially generate a bit more lift. However, there are still some mysteries I haven't cracked: * The most compact way to attach both pinions to one shaft remains unclear. Currently, they're placed on an M2 shaft, but this would require glue to hold them in place - not ideal since the design is far from finished and will likely need to be opened again and again. * Wheels and tracks are still a puzzle. If you have any suggestions or ideas, please share!