Autism Awareness Keychain

The Story:

My wife works as a special-education teacher for autistic children. The logo for autism awareness is traditionally interlocking puzzle pieces. In honor of Autism Awareness Month, we decided to design a keychain to possibly give out to her classroom assistants and students.

I designed this by downloading a picture of a silhouette of a puzzle piece, "extruding" it in CAD, and copying four side by side. In order to be able to discern the four pieces in a single CAD model/print, I gave it this stepped look.

I uploaded my CAD model to Thingiverse where it can be downloaded here.