Spinning Brick 2x2

A unique 2×2 brick featuring a built-in rotating (spinning) top. Designed as a fun, durable, and kid-friendly print-in-place toy element.How it worksAfter printing, place a standard 2×4 Duplo brick on both the top and the bottom. Hold firmly and twist with force — the two internal parts will snap apart and the spinner is ready to use. Boost MeIf you want more bricks like this. :)Design goalsDuring the design process, I focused on the following goals:Fully compatible with standard Duplo setsPrint-in-place design — no assembly requiredThis also helps reduce choking hazards, as kids can’t take it apartIterated and tested through many design versions before reaching the final modelNo supports requiredRugged bottom design with thick walls for better strength and long-term durabilityPrinting notesI optimized the print profile for my Bambu Lab A1 mini using original Bambu PLA filament.If you experience fit issues after printing (too loose or too tight), feel free to let me know — I’m happy to