How Does BullseyeBore Core Work?
The standard versions of BullseyeBore Core (CR1-100 and CG1-100) projects two beams on the work surface that produce circular patterns during drill rotation. The first beam is projected parallel to the drill bit. This projection is known as the Reference Beam, and this beam produces a circular Reference Pattern on the work surface while the drill is rotating. The Reference Pattern is generally circular and unchanging even if the drill is misaligned (tilted) with reference to a flat work surface.
The second beam is known as the Alignment Beam, and this produces a single Alignment Pattern on the work surface while the drill is rotating. Much like the Reference Pattern, the Alignment Pattern is essentially circular when the drill is aligned with a flat work surface, but unlike the Reference Pattern, the Alignment Pattern will distort into an elliptical shape when the drill is misaligned (tilted) with regards to a flat work surface.
The projection of these two patterns makes the work surface alignment process very simple and quick: when the Alignment Pattern and Reference Pattern are concentric, the drill is aligned perpendicularly with a flat work surface (as shown above). Conversely, if the Alignment Pattern and Reference Pattern are non-concentric and the Alignment Pattern is elliptical, then the drill is misaligned with reference to a flat work surface (as shown on the left).The patterns produced by BullseyeBore Core simply capitalizes on the brain’s ability to visually evaluate circular shapes and concentricity very quickly, and thus provides drill users with the ability to also interpret drill alignment or misalignment rapidly.
The extended versions of BullseyeBore Core (CR1-101and CG1-101) introduce a second Alignment Pattern. In these extended versions the first and second Alignment Patterns are projected at slightly different angles which translate into different diameters on the work surface and thus work with a wider array of drill bit lengths.
Aligned
Misaligned Left
