There was an artilce in Digital Machinist about it.
Basicaly you use your camera to scan the object and then it puts it together so you have a composite
picture of the scan. ( Folks have been doing this for a rather long time with telescopes to get pictures of stars and planets
via freeware. Now the scan software, if purchased, will then allow you to draw over the scan and you can save it as a DXF file.
I think i got it right....

Interesting on the scan part of it.
I can take a high resolution picture, do the same with CAD ( which i have done for many projects)
and be done quicker.

A different way would be to use "Copycat" and the gcode is done and post to Mach to cut the piece.

There is a manual done for CopyCat in Members Docs.

You can also backplot a gcode and get a drawing.
So, i quess there is a another tool out there, but i don't need to spend money to get the same results.
Hmm......Am I being negative, missinformed, or cheap?
Heck, you decide...i just report.....

RICH