One object, three geometric shadows
thingiverse
In a dream, I was given advice by a wise man who demonstrated the power of shadows. He illuminated a wall with a spotlight and placed an object between it and the surface. The object's shadow transformed as it was spun - first into a perfect square, then an equilateral triangle. The identity of this mysterious object remains a question, but if you wish to print from its STL file, it may need to be "manifolded" using Blender or another program such as netfabb's online tool.
With this file you will be able to print One object, three geometric shadows with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on One object, three geometric shadows.