Here is the How-to-Make-a-Paper-Spring hand-out that goes along with the photos in the previous post. Not only is this little structure delightful and satisfying for children to make, but I have a…
![Pop up! a manual of paper mechanisms - duncan birmingham (tarquin books) [popup, papercraft, paper engineering, movable books] 2](https://i.pinimg.com/originals/0c/71/4a/0c714a0c112e6468107acd6eb811515a.jpg)
