About this 3D model

This is an iris mechanism built into a greeting card sized card (5" x 7"). For simplicity and to help keep the thickness low it only has 3 leafs. This particular design does not scale well to more leafs unless it is made much larger. The initial design did have 4 leafs and is built in a way that would allow it to scale to a different number of leafs more easily. If anyone is interested I could upload that as well. This card has slots in the back that allow you to stick a 2" x 3" photo in the back and reveal it when the iris is opened. I have this setup for 8.5" x 11" sheets, but if you have a bigger sheet you can combine the two files.