This is a cartoon-accurate model of Soundwave's Blaster from the Transformers G1 cartoon show. It's "full sized", so roughly for adult size, and the pieces will all fit on a standard 200x200x250mm bed.
Just print one of each piece; everything interconnects and should be pretty straightforward in terms of which piece goes where.
Go to http://itsg1ish.com for more!
The author hasn't provided the model origin yet.