Twisted Christmas Ornament 80 mm – Two-Part, Support-Free

A printable Christmas tree bauble with swirling twisted ribs, 80 mm in diameter. It comes as two parts so you can print the ball and the cap in different colours. What's in the ZIP: - ornament_ball_80mm.stl: the hollow ball (80 × 80 × 77 mm, wall about 1.15 mm) - ornament_cap_with_ring.stl: the cap with its hanging ring (18.8 mm disc, 14 mm tall) Designed for FDM printing: - The ball stands on its flat base. The neck inside is a 63° cone that grows out of the ball wall, so the slicer finds no floating areas or islands. Checked at 0.08, 0.12, 0.16 and 0.2 mm layer heights. - The cap prints disc-down and needs no supports. - The cap disc (Ø18.8 mm) drops into a Ø19.2 mm seat 1.2 mm deep, leaving 0.2 mm clearance on each side. Fix it with a drop of glue. - Both parts are manifold and watertight. Recommended settings for the ball: 3 perimeters, 0% infill, 0.12 to 0.16 mm layers, strong part cooling. The underside below the equator is steep, so if your printer struggles with overhangs, turn on tree supports set to "touching build plate only". They won't go inside the ball. Personal use licence.