This invention improves the process of using automotive wheel alignment toe plates to perform wheel alignment by measuring from the wheel of the vehicle instead of the tire as is standard with toe plates measurement. The result of this new invention is the elimination of the tire as a source of error.

A wheel alignment system for a three-wheeled vehicle comprises a reflecting assembly and a first laser emitting assembly. The reflecting assembly includes a first mirror having a first reflective surface arranged in a first mirror plane that is perpendicular to a rear wheel vertical plane, which is defined centrally through a rear wheel along a direction of travel of the vehicle. The first laser emitting assembly includes a first laser emitter configured to emit a first laser light at the reflective surface along a laser line parallel to a first front wheel vertical plane, which is defined centrally through a first front wheel, and first indicia corresponding to a toe angle of the first front wheel. The first the mirror reflects the first laser light toward the first indicia.

This invention improves the process of using automotive wheel alignment toe plates to perform wheel alignment by measuring from the wheel of the vehicle instead of the tire as is standard with toe plates measurement. The result of this new invention is the elimination of the tire as a source of error.

A skate blade sharpening system retains a skate blade in a sharpening position whose centerline has a first location relative to a first visual reference feature. A motor-driven rotating shaft has a wheel-mounting location for mounting a grinding wheel for sharpening operation. The shaft accepts an alignment wheel at the wheel-mounting location during an alignment, the alignment wheel having a second visual reference feature having a second location relative to a centerline of the grinding wheel when occupying the wheel-mounting location. An adjustment mechanism moves the shaft transversely during alignment to vary relative position between the wheel-mounting location and the sharpening position including an aligned position in which the centerline of the grinding wheel is aligned with the centerline of the sharpening position, the aligned position being indicated by alignment of the first visual reference feature with the second visual reference feature during alignment.