M35A2 reinforced transmission shaft solutions

thingiverse

After numerous attempts to overcome the shortcomings of traditional transmission components, I've finally developed a design that works exceptionally well for me in soft off-road conditions. However, it's essential to note that this setup hasn't been thoroughly tested under harsh usage like a crawler would experience, as it still has limitations due to its plastic construction. To address some key issues, I've implemented the following modifications: 1. Double Square Joint: This design allows for two full screws crossing the shaft, significantly improving torque levels. Unfortunately, my initial tests with PLA resulted in a breakage within minutes. Fortunately, using wood as a material has proven successful so far, but aluminum would be the ideal choice. 2. Printing Shafts Horizontally: By printing the shafts in this orientation, they become stronger and more durable (100% fill recommended). 3. Using Reinforced U Joint: This modification also enhances strength when combined with horizontal printing. 4. Central Differential Ratio Change: This update will be shared soon for all to benefit from. 5. Removing Differential Front/Rear and Central: The existing gears are too small and prone to quick wear in off-road conditions, making this upgrade necessary. To see the design in action, please visit the following videos: https://youtu.be/UJJZdykP2GI https://youtu.be/rvvbTu28COc Enjoy!