CAD Help

You might be better off taking the pictures to a digitizing service. Turning a photo into a CAD file isn't easy.

Or, you can get a digital file from places like:

3D Anatomy | Human Body | Digital Model for Animation

As Lyn says. I'm fairly proficient with 3D CAD but I would still find it pretty daunting to create an accurate representation of a human hand. There are models out there as in Lyn's link, do you have a CAD system to open them with? Laser scanning is another option but a bit expensive unless you have a friendly local company. Can't find it at the moment but I've seen some lower cost laser scan set-ups associated with the DIY style 3D printers.

pretty interesting stuffhttp://www.123dapp.com/catch

Maybe Weta Workshop has some used gear.

Some useful links in this thread:-

http://cr4.globalspec.com/thread/98669/Knee-Joint-Model

I recall some methods demonstrated on 'instructables.com', i.e. to generate files for 3d printing.

If you have a 3D CAD system you just export them in STL format.

There is a pretty good resource out there called 3Dhubs.com. They are kind of a clearing house for 3D printers that allows customers to connect with owners and users of 3D printers in their area. I was in the process of trying to get the owners of my company to buy an entry-level 3D printer and found an authorized dealer for MakerBot printers in my area. I don't know how detailed want your finished product to be, but MakerBot has a 3d scanner that does a pretty good job for a reasonable price. There might be someone close to you that can offer some advice. The only thing you have to be cautious of with 3Dhubs.com is that they have algorithms on their e-mail server that force you to go through them when you are trying to contact someone. You can get creative with your e-mails to get around it but they will block out phone numbers, web sites, and addresses to try to force users to go through them.