Iteration 1: Get Your Head into the Computer!
AutoDesk provides some spectacular free software
called 123d Catch.
The subject remains perfectly still
while someone walks around taking a lot of photos. Then the software
churns on it all and creates a 3d model in the computer.
This is another attempt done in the carport. In
this photo I had it display the computed camera positions. Sometimes
it gets them wrong and looking at this display you can move them
I fooled with this software for a long time and still
had problems getting it right; note the flat part of my head.
Still, it's free and it did the job in the end. My suggestion
is to use lots of light and take a LOT of overlapping photos.
Iteration 2: Cut From Whole Cloth ... errr .... Mat Board
How about bigger and cheaper? I used a free plug-in
script for SketchUp and produced a number of sections (splines)
from my head mesh.
Here I've laid them out. Each has a number
so I'll know how to order them. I also have a "pacman" hole in each
that I can use to align them all.
The pieces are all stacked on top of each other
now. I didn't quite estimate the thickness of the mat board correctly
so my head is a bit squished. Some say it's an improvement.
Here I am on the mantle. Just need a couple of candles
to make a shrine.
Iteration 3: Hold My Head In My Hand
I sent the 3d model to
via the internet.
Wasn't sure what to expect. I came back better than I would have
ever thought. That's me!
Only $25. How cool is that?
Iteration 4: Bigger Is Better
V-Carve set up the tool paths and here the ShopBot
is doing the rough cut. I didn't really have enough depth clearance
and you can see where the spindle rubbed the model along the bottom
Here's the final cut, shown with the live version.
Live version is on the right.
Trimmed up with a bandsaw the final piece looks
"Portrait of the Artist as a Young Man"