Geometry for Pencils: Cuboctahedron Rhombic Dodecahedron Compound Pencil Topper.

myminifactory

Cuboctahedron Rhombic Dodecahedron Compound pencil topper measures approximately 21 mm X 21 mm X 21mm, with a gradual decrease in size designed for a snug universal fit. The cut hole in the Cuboctahedron Rhombic is at a 3.30 mm radius that decreases to 2.90 mm. If you have a favorite pencil, consider topping it off with a unique cuboctahedron design. Amaze your friends in class with a one-of-a-kind pencil topper. For simple conversion to inches, remember that 1 inch equals approximately 0.039 mm. To calculate the equivalent size in inches, multiply the millimeter measurement by 0.039. For example, at 3.30 mm is equivalent to 0.12 inches when rounded to two decimal places. In my pictures, I have showcased various sizes of Cuboctahedron Rhombic Dodecahedron Compound pencil toppers designed for fit atop a pen, papermate mechanical pencil, and BIC pencil, each with three different radius options. Please note that I do not own the rights to any pencil manufacturer mentioned and am simply modifying my collection of writing tools with existing marketing designs. The .stl design posted on this page was originally intended for a wooden pencil but has been found to work well with mechanical pencils as well. A Cuboctahedron Rhombic Dodecahedron Compound is a convex polyhedron characterized by 24 edges, 12 vertices, and 12 confruent rhombic faces.