Rotton Eggs!

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This is my design submission for Easter Design Challenge!  My three design goals were to be able to print without supports, have an eggshell that locks together, and (of course) to be cute. I spent most of my time figuring out an eggshell design that would print without supports and latch relatively securely. I tried hinges and threads, but there were too many complications.  My kids cross-threaded or broke my prototypes every time and I knew that wasn't the solution. I eventually settled on nubs that wedge in place when the two halves are twisted together. The outside of the shell is egg-shaped, but the inside uses a more pointy “ogive” shape to create the cavity. This shape tapers to a point, which allows you to adhere to the 45 degree rule and avoid overhangs/sagging deposits. The characters themselves are created using mostly spheres, various banana shapes, and Christmas trees for all the facial hair. To create the damaged areas I used spheres, asteroids and terrain shapes as “holes”. Just for fun, I printed several in white so my kids can paint them  :D I hope you enjoy printing these! This object was made in Tinkercad. https://www.tinkercad.com/things/3rQK6ilflAc Note: The first STL file, "rotton-eggs.stl" is the file from TinkerCAD, the rest are individual shape exports that have been run through Netfabb to fix minor non-manifold edges that I found in S3D.  I didn't have any issues printing the TinkerCAD files, but why not strive for perfection?  ;)

About the author:
8ran
I'm a serial hobby-ist, and 3D printing is my latest love.

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