The model
The spiral has 5.25 turns with a pitch of 8.0 mm. Between the turns 0.6 mm of air remains, so the spiral is printed in one piece flat on the bed, without supports. The outer edge of each turn carries teeth 3.4 mm long, and the hub in the middle sits on the rod.
The rod (Ø 7 mm) plugs into the foot, the hub lies on the shoulder above the shaft, and above it the star sits on a peg of 3.6 mm diameter. The preview images show the spiral as a calculated approximation of the pulled-out tree.
View print notes (German)
Print notes included in German; part names are self-explanatory.