Laser Level for Bench Regulation

[Lhadeh at wmconnect.com]

I believe you can project a curve with a laser level, as long as it's one of 
the rotating types.  To project a curve with the center higher than the ends, 
position the laser below the level of the projected line.  The projected line 
will then be a parabola.  The more the difference in height, the sharper the 
curve of the parabola.

Whether that might be close enough for government work on a garden variety 
Steinway, I would think so, but others may disagree.

Loren Hedahl
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