Lego Technic Rubber Track Idler Wheels

myminifactory

I designed a set of idler wheels compatible with Lego Technic's rubber tank tracks for my Mindstorms kit, which only came with 4 wheels. To achieve more varied track shapes like triangular or trapezoidal designs, I needed additional wheels. I began by modeling the standard wheel without its teeth, then crafted one as compact as possible while maintaining clearance for the inner rubber guide rail. Next, I created two larger wheels to cater to different requirements. After that, I experimented with creating both outer and inner cog teeth and successfully developed a design that will function seamlessly with the standard gears.