I can’t tell this better then Fwis do them self:
Fwis Presents Readymech – Free flatpack toys for you to print and build. Readymechs are free flatpack toys designed to fit on an 8.5â€?x11â€? and to be printed on any printer.
I can’t give you the definition what a flatpack toys is. I can show you!
There are no blank versions of the Readymech, but with a little imagination you can make a couple new designs yourself!
And if you need a little help: Computer Arts has a tutorial about Design and build a flatpack toy.
You can download the tutorial for free or just download the support files from the “bad-boy”, print it and start building.