Modelled an easy to print christmas ornament which folds open. Timelapse of modelling and printing: https://youtu.be/CJPbs6vwxJQ
Printed the large at 0.3 mm layer hight, and the small at 0.25.
The "axel" has a 0.3 mm tollerance on the large one (100mm), and a 0.25 tollerance on the small one (80mm).