Two-color Anchor logo

This project started with the logo for my project at work, designed by a friend.

Using Gimp and Inkscape, I was able to simplify the logo, in particular remove the shadows, and turn it into an SVG file with one black shape and one red shape - i.e. vectors instead of bitmap so they can be extruded. From there, a simple extrusion in 123D and I had the 3D model ready to print.

I first printed the logo in a single color, but it lost much of its character in the process. So I went back to 123D to turn it into 2 separate shapes via boolean operations. 

Unfortunately the geometry derived by Inkscape was too complex to do it all in one operation, so I first cut the anchor shape using simple primitives that matched corresponding part of the A (cubes and prisms). That gave me the anchor. Then I split up the anchor into several pieces so that I could subtract it from the A. In the process I made sure to build in small tolerances in the holes so the pieces would fit together.

Oops, forgot to cut something...

A few trials and errors later (in particular forgot one of the cuts, see above...), et voila!  The gaps are only slightly larger than the shape that fits in them (around 3%), so it just clicked and fits very snuggly.