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It's a threaded dragon egg, great for Easter egg hunts, gifts, and Game of Thrones fans.
The whole egg measures 63mm tall by 45mm wide. I will soon add large and extra large versions.
This is a remix of my own threaded Easter egg. I made every bit of this from scratch, including the scales. I made the scales by importing a custom texture into a Blender brush and placing every scale one at a time, adjusting the size as I went. I designed it with Sketchup, Blender, and Meshmixer. (And Gimp for the scale alpha.)
- Print the bottom and top pieces as oriented in the files. Supports are not required. I recommend a layer height of 0.2mm or smaller, wall thickness of 1.2mm, a bottom thickness of 0.6mm, and a top thickness of 0.8mm. Infill density of 12 percent or higher. I tried to allow for horizontal expansion in the design, so first try printing it without adjusting horizontal expansion, slicing tolerance, or x/y compensation. If it prints too tight or too loose, then you can use one of those slicing features to compensate. Threads are notorious for being the hardest item to print, so please be patient. If you want to save time while testing, you can print the included calibration test instead of the full model.
- Once printed, screw the threads in and out repeatedly to remove any stray particles. It may feel too tight on the first threading but should screw easily after ten seconds of doing this.
- Note the small nubs near the threads. Refer to the pictures to see what I'm talking about. When the two nubs are parallel, you know you've got the proper alignment.
Licensed under Creative Commons Attribution Share Alike. If you sell prints of this file, please respect the license and credit me on the sales page with a link to this page.