My (first) entry for the 2024 Easter Challenge- nesting eggs. I designed these eggs from scratch on Fusion 360.

Each one fits into the size larger, like those Russian nesting dolls. The smallest one is designed to comfortably hold a little chocolate egg. These eggs have bunny headbands and eyes for more excitement (for the kids/everybody).

These guys are all sized appropriately and have tolerances built in. Of course, higher layer heights mean less reliable tolerances, and they may be sticky after printing- use will wear it down. If you want to make more, take the largest egg, and scale it up 2x in all dimensions. The entire pack takes roughly 400g of filament, but, the small and medium together take less than 100g. If you just want to make the smallest, so that you can hide a little egg, it prints on my Ender in 2-3 hours with about 10-15g of filament.

Support Settings- NO supports on the threads at all, they print fine without. Supports clog it up. You will need supports for the ears on the top eggs- I use paint on tree supports, slide the support angle all the way, and paint only on overhangs. This is the only part that needs supports.

Print Settings:

0.2mm layers for threads.

100% scale is a good idea (tolerances), but you can go bigger.

1.2 mm shell, 20% infill (strong, as it will probably be used repeatably.)

Fine without adhesion

Ironing- your choice

SEE SUPPORT SETTINGS