This design is a mashup of 2 other files. I have written a full tutorial, including a video, showing how easy it is to mashup 2 or more designs using Autodesk Meshmixer. Just check out the post on my blog for details https://edditiveblog.wordpress.com/2017/05/14/the-meshmixer-mashup-mashup-rex/
Mashup-Rex 3D Print Model
