About

This is not my idea, I saw it at http://polychemy.com/products/iphone-4-finger-print-case. However, I thought it was a shame not to actually have your own fingerprint on the case.

People have already suggested it's possibly not wise to broadcast your fingerprint. It's my understanding that a system relying on an image of a fingerprint based security is already.

This is not a finished product, it's a proof of concept. Some work is required before you could actually print this for your model of phone.

Things to do

    * add some real phones to the openscad file
    * find a way of reducing/connecting/removing islands

Requirements

• install/update libfprint. These instructions work for ubuntu 12.10 (from https://launchpad.net/~fingerprint/+archive/fprint)

    1. Add this PPA to your sources:
          sudo add-apt-repository ppa:fingerprint/fprint
          sudo apt-get update
          sudo apt-get upgrade
    2. Install the software:
         sudo apt-get install libfprint0 fprint-demo

• install potrace:

     sudo apt-get install potrace

• use fprint-demo to make a png of your fingerprint

    1. sudo fprint_demo (needs root to open device)
    2. go to the 'verify' tab and verify a finger
    3. click the 'save' button to export your fingerprint as a png
    4. copy the file to this directory

• use convert.sh to convert the png to a dxf (tweak settings for potrace and mkbitmap for your reader)

    ./convert.sh

• use openscad to render the fingerprint as a phonecase, export the stl and print it!

    1. openscad case.scad (may take a while 
    2. play with xshift, yshift and zoom to get the print looking good in the border
    3. comment out import_shape() and uncomment back() to slice the bit we want
    4. export the stl and print!