Tutorial 9 Raising Pop Ups Off Centre. The Strap

Most popups are built across the spine fold, the central crease that runs down the middle of a card or book. The Strap is a mechanism that generates two gullies that lie flat on the page but away from the central crease. This makes it possible to build popups that stand in the middle of a page. This tutorial explains an easy way to make the Strap mechanism.