What do a shredder and a 3D printer have in common?


What do a shredder and a 3D printer have in common? Maybe less than I hoped, but the project's not over yet.


My library got a 3D printer. Daughter Marcy and I worked with their IT guy, Charles, on the challenging task of taking thirty photos of an object I brought from home, then rendering a 3D image to feed into the printer.
I wanted to replicate something plastic that's actually useful, and that's how I came to select the kid lock override device that goes into my shredder to make it operational.  
Marcy turned the object on a chair, while Charles took the pictures.
We got as far as uploading the pics to http://www.123dapp.com/catch but the app turned the photos into something quite different from the original object. So there's more to learn.

I left Charles with the kid-lock thingy, and he has the photos of course.