Make: Volume 90

CAPTURING AN IMAGE

Once you have your reference frame, set it down

on the image you want to capture (Figure

C

).

This process works best with flat, 2D images.

Capturing 3D images is not impossible, but adds

significant challenges — e.g. shadows, hidden

sides, and overhangs — that are beyond the

scope of this article. A more common practice is

to trace the outline of a 3D object. If this is your

goal, do your best to keep the trace as tight as

possible to the object edges. This helps avoid

changing the size of the object once it’s digitized.

Take a picture with your smartphone or other

camera. Do your best to avoid shadows on the

object ...