Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

Woodworking equipment (sliding compound miter saws, for example) use a
laser to project a cut line on the material. It seems to work pretty
well in light or dark conditions. I've seen low cost laser levels
(<$40, iirc) that could be adapted to this. Two of them aimed at the
drill bit would create a crosshair target. They wouldn't need to be
at right angles and height of the material shouldn't be an issue.

Phil