Spinning top v8

A spinning top that can spin for over 3 minutes. Print at 50% scale without support. The ring should be printed at 100% infill for max weight, the top and the tip I printed at 30% infill.

At 50% scale with layer height 0.1mm the parts fit well and snap together. After snapping them together, the ring is completely enclosed and the outside can be optionally sanded.

With larger and smaller scales the fit starts to become tighter or looser. At 70% for example I find it too loose and and 40% too tight. Your specific print conditions would change that, but I recommend you start at 50%.

(a newer version can last 4 minutes: https://www.thingiverse.com/thing:3129942)