What you need for this book

The only steadfast requirement for this book is to install the free, open-source software Blender. It can be downloaded from https://www.blender.org/.

You do not even need a 3D printer to begin. Companies such as Shapeways and Sculpteo can do the printing for you. You may have a nearby library or makerspace with 3D printers available to the public. Finally, you can find local printer in your area with websites such as 3dhubs.com or makexyz.com.

There are two additional tools that are optional, but may be helpful:

• A ruler or calipers to help judge the sizes of your piece
• Image editing software such as Photoshop, GNU Image Manipulation Program (GIMP), or Microsoft Paint may assist with coloring models