Threaded Easter egg
Description
This egg was intended to be printed 15cm tall overall, with a *single wall* on a 0.6mm nozzle for a trade-off between strength and material usage. The top part of the egg uses 0 initial bottom layers and 3 global bottom layers. Top layers is your choice, start with 4 and work up if you have any gaps. The top part has a custom STL support "egg support disc" if you want to use this instead of your slicer's default supports as it should be just a single trace and more economical and reliable. You can print this as a regular model. You may have to adjust it's Z height so that you're left with at least 1-2 layers of gap. The threads end at Z = 9.63mm. Use brim supports on both pieces. The bottom part used 2 top & bottom layers (global), however, had a mesh modifier (a big box is fine) covering the whole top part of the model starting at Z = 9.3mm with modifier settings of 0 bottom layers in order to leave the inside exposed (essentially not printing the diaphragm you see in the STL and 4 top layers. Notes: The way I created that diaphragm in MeshMixer seems to not have made it completely flat, so if you have some weird squiggly wall line at Z = 9.3mm then that's all that is. I suppose if your layer height is tall enough it may not appear at all. Don't worry it won't affect the appearance of anything, just trim it away after printing. If you keep the Z seam global setting the same between both parts, both of their seams should line up when the halves are combined.
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