- cw.py: switch from 1/2"x2" wood to 1"x3"
- README: explain what we need to protect against
- README: added more process details
- README: merged g2gp pass into "doit"
- doit: script for final machine-specific alignment and translation
- README: describe mechanical stacking and the function of the various
protective layers
- cvr.py: model of the cover sheet, with gnuplot and HeeksCAD output