Abstract: A bow tuning apparatus with a nock travel indicator includes a mounting platform for mounting a compound bow having cam wheels, the mounting platform having first and second deflection measuring gauges on respective first and second sides, to contact the cam wheels for measuring bow deflection as the bow is drawn. An outer frame is mounted to the mounting platform, the outer frame including indicia for measuring bow string travel distance. An inner frame is slidably received in the outer frame, the inner frame having a bow press with rollers to deflect the bow limbs as the inner frame is retracted into the outer frame. A first winch, having a strain gauge, is used to draw the bowstring. A marking pen may be secured to the bowstring, to mark a surface as the bowstring is drawn. A second winch is used to retract the inner frame into the outer frame, to slacken the bowstring.

Abstract: The present invention relates to a device for calibrating an archery bow. More specifically, the present invention relates to a device wherein the draw of a bow can be calibrated against the movement of its limbs and pulleys. In its broadest context, the present invention includes a work surface to which both a winch, a bow securing means and first and second side measuring devices are secured. In use, the bow is drawn to its valley. Then through the use of the winch the tension in the cabling is released. In releasing the tension, measurements in the first and second side measuring devices are noted. In this manner the draw of the bow is calibrated against movement of the bow's limbs and pulleys.