M365 rear mudguard fixation bridge / pont de fixation du garde-boue arrière

thingiverse

Problem: The rear mudguard of my M365 scooter is notoriously fragile and prone to damage from harsh vibrations, as I recently discovered firsthand while cruising over cobblestones. Specifically, the part that broke was a triangular plastic shape holding together metallic spacers through which three original fixation screws pass. To resolve this issue, I designed and 3D printed a custom bridge to secure the mudguard in place. This innovative solution involves attaching the bridge with three screws, which then presses the mudguard down onto the scooter's foot plate. Notably, the diameter of the bridge's poles matches that of the mudguard's cylindrical holes perfectly, ensuring a tight fit that resists vibrations. To ensure proper installation, it's essential to replace the original screws with longer M4 screws. I used two M4x30 screws, although they were slightly too long – M4x25 would be a better choice – and one M4x15 screw. To distribute the compression load from the screw head evenly across the 3D printed material, I employed three spacers. When it comes to printing the bridge, a rough 2mm setting is more than sufficient, as precision is not necessary in this case.