Aim a Laser Level Precisely by Setting It on a Longer Scrap Board

The Problem

Rotating a laser level to land its line on a mark across the room is touchy: the smallest hand adjustment at the level swings the line past the mark, first one side, then the other.

The Technique

Set the level on a piece of scrap material longer than the level's own base — a length of board — and make your aim adjustments by pivoting the board, not the level.

The scrap works as a reduction lever. Nudging the far end of a long board rotates everything on it by a much smaller angle than pushing the level directly, so each touch moves the distant line a fraction as far — small enough corrections to walk the line onto the mark.

The creator's demo is 30 seconds and shows the motion better than words do — worth the click through to the source video.