$3.50Swirly-Whirly Eggs!

myminifactory

My wonderful Patreon supporters get this model free! :) It's vase mode time!  And screw-together vase mode time, at that!  Here we have an egg that is comprised of two individual vase mode prints, one of which forms a thread on its exterior, while the other forms a matching one on its interior (with a little tolerance gap for good measure).  So, what's the deal with those swirly lines?  Well, obviously they're decorative, for a start, and add some fun texture to the classic egg form.  What they also do, though, is provide the ability for a vase mode print to have different interior and exterior profiles.  This is most obvious in the top half, where the outside is oval, but the inside is a threaded shape that fits onto the base.  Since we only have a single line to draw our walls, this dual profile is achieved by drawing back and forth between them, which gives us our curving lines down the outside... Read the rest of the original Patreon writeup here: https://www.patreon.com/posts/49274717