Print-in-Place Planetary Gear Spool Cap ⚙️

Not just another spool cap with a picture on top. This one actually moves! Instead of using the top surface only for a logo, picture or decoration, I wanted to make the spool cap itself functional. The result is a compact print-in-place planetary gear mechanism integrated directly into the spool cap. Turn the outer ring and the gears inside start moving. The complete mechanism is printed already assembled — no screws, separate pins, glue or assembly required. Just print it, carefully free the m…

♥ 0 · ↓ 3