Designed a lightweight filament spool that actually works in real conditions. Reduced material usage while keeping structural strength and AMS compatibility in mind. This isn’t just a visual model, it’s built for practical use. Would appreciate feedback to improve the design further.

Just released my fully 3D printable parametric gearbox ⚙️ Designed in CATIA with fully parameterized gears, so ratios and sizes can be easily modified without redesigning everything from scratch. Compact, modular, and great for learning or prototyping. You’ll need to print 2× double gears and 2× housing parts for assembly. If you build it or customize it, I’d love to see your version!