Abstract: In some embodiments, an archery bow comprises a riser comprising a grip location and a cavity. A first limb is supported by the riser and attached by a first limb fastener. A second limb is supported by the riser and attached by a second limb fastener. A bowstring extends between the limbs. A vibration damper is located in the cavity, the vibration damper comprising a resilient member and a weight. A first distance from the bowstring to the first limb fastener is less than a second distance from the bowstring to the vibration damper.

Abstract: In some embodiments, an archery bow comprises a riser, a first limb and a second limb. A first rotatable member is arranged to rotate about a first axis and a second rotatable member is arranged to rotate about a second axis. A bowstring is attached to the first rotatable member and arranged to bias the first rotatable member in a first rotational direction about the first axis. A power cable is attached to the first rotatable member. A servicing string is arranged for attachment to the first rotatable member and arranged to bias the first rotatable member in a second rotational direction about the first axis.

Abstract: In some embodiments, a crossbow comprises a stock, a first limb assembly arranged to support a first rotatable member and a second limb assembly arranged to support a second rotatable member. The first rotatable member comprises a first cable track and a second cable track, and the second rotatable member comprises a third cable track and a fourth cable track. A bowstring extends between the first rotatable member and the second rotatable member. The bowstring defines a bowstring plane. A latch is attached to the stock and arranged to engage the bowstring. A trigger is arranged to release the latch. A first cable segment is oriented above the bowstring plane and engaged with the first cable track. A second cable segment is oriented below the bowstring plane and engaged with the second cable track. A third cable segment is oriented above the bowstring plane and engaged with the third cable track. A fourth cable segment is oriented below the bowstring plane and engaged with the fourth cable track.

Abstract: A modular cam system for an archery bow or crossbow includes swappable cams that change the maximum draw weight of the archery bow or crossbow. Moreover, the modular cams can be affixed to a rotatable member in a number of orientations to set the desired draw length without changing the limbs, tightening or loosening limb bolts, or disassembling the bow. Further, the maximum draw weight of the bow remains substantially similar throughout a large portion of the draw length adjustment for a specified cam module.

Abstract: In some embodiments, an archery bow riser comprises a body defining a first end, a second end and a grip portion. The body defines a shooting axis and comprises a first portion and a second portion. The first portion comprises a metal and the second portion comprises carbon fibers. The first portion extends to a first side of the shooting axis and to a second side of the shooting axis, and the second portion extends to the first side of the shooting axis and to the second side of the shooting axis.

Abstract: In some embodiments, an archery bow comprises a riser, a first limb, a second limb and a bowstring. The riser comprises a first rail, a second rail and a plurality of connecting members extending between the first rail and the second rail. The riser comprises an accessory cavity comprising an aperture through the first rail. The aperture comprises an asymmetrical shape. In some embodiments, the aperture comprises a first aperture and the accessory cavity comprises a second aperture through the second rail. In some embodiments, the second aperture has the same shape as the first aperture.

Abstract: In some embodiments, crossbow comprises a frame, a bow portion comprising a bowstring, a latch and a trigger. An arrow rest is supported by the frame at a first location. The frame is also arranged to support the arrow rest at a second location. A distance between the latch and the first location is different from a distance between the latch and the second location.

Abstract: In some embodiments, a crossbow comprises a stock, a first limb assembly arranged to support a first rotatable member and a second limb assembly arranged to support a second rotatable member. The first rotatable member comprises a first cable track and a second cable track, and the second rotatable member comprises a third cable track and a fourth cable track. A bowstring extends between the first rotatable member and the second rotatable member. The bowstring defines a bowstring plane. A latch is attached to the stock and arranged to engage the bowstring. A trigger is arranged to release the latch. A first cable segment is oriented above the bowstring plane and engaged with the first cable track. A second cable segment is oriented below the bowstring plane and engaged with the second cable track. A third cable segment is oriented above the bowstring plane and engaged with the third cable track. A fourth cable segment is oriented below the bowstring plane and engaged with the fourth cable track.

Abstract: In some embodiments, an archery bow comprises a riser comprising a grip, a bowstring comprising a nocking point, a cable and a cable guard arranged to apply a force to the cable at a contact location. The bow defines a shooting axis, which is positioned in a longitudinal plane and a lateral plane. The longitudinal plane is orthogonal to the lateral plane. The bowstring is positioned in the longitudinal plane. The contact location is positioned on the lateral plane.

Abstract: In some embodiments, an archery bow comprises a riser, a first limb, a second limb and a bowstring. The riser comprises a first rail, a second rail and a plurality of connecting members extending between the first rail and the second rail. The riser comprises an accessory cavity comprising an aperture through the first rail. The aperture comprises an asymmetrical shape. In some embodiments, the aperture comprises a first aperture and the accessory cavity comprises a second aperture through the second rail. In some embodiments, the second aperture has the same shape as the first aperture.

Abstract: In some embodiments, a shaft testing device comprises a support comprising a non-contact bearing. The support is arranged to support a workpiece such as a shaft. A loading mechanism comprises a non-contact bearing. The loading mechanism is arranged to apply a load to the shaft. In some embodiments, the load is applied orthogonal to a longitudinal axis of the shaft. In some embodiments, a non-contact bearing comprises an air bearing.

Abstract: In some embodiments, an archery bow comprises a riser, a limb member and a support member. The limb member is supported by the riser at a first location. The limb member supports an axle at a second location. The support member is supported by the riser and arranged to support the limb member. The support member contacts the limb member at a contact location. The contact location is oriented between the first location and the second location along the length of the limb member.

Abstract: In some embodiments, an archery bow comprises a riser comprising a grip location and a cavity. A first limb is supported by the riser and attached by a first limb fastener. A second limb is supported by the riser and attached by a second limb fastener. A bowstring extends between the limbs. A vibration damper is located in the cavity, the vibration damper comprising a resilient member and a weight. A first distance from the bowstring to the first limb fastener is less than a second distance from the bowstring to the vibration damper.

Abstract: In some embodiments, a bow comprises a first limb supporting a first rotatable member. The first rotatable member comprises a first bowstring track and a first terminal post. A second limb supports a second rotatable member. The second rotatable member comprising a second bowstring track and a second terminal post. A bowstring comprises a first end attached to the first terminal post and a second end attached to the second terminal post. The first bowstring track and the second bowstring track are oriented in a bowstring plane, and the first terminal post is laterally offset from the bowstring plane.

Abstract: In some embodiments, projectile comprises a first body portion comprising a tip, a second body portion comprising a nock and a tether attached to the first body portion and attached to the second body portion. In some embodiments, the projectile comprises a first configuration where the first body portion contacts the second body portion. In some embodiments, the projectile comprises a second configuration where the first body portion is spaced apart from the second body portion.

Abstract: A soundboard for a musical instrument is disclosed the soundboard having at least one layer of material. In some embodiments the material comprising carbon fiber, fibrous laminate material, resin or a plastic matrix and combinations thereof. At least one bracing structure is engaged to the at least one layer of material. The at least one bracing structure comprising at least one layer of honeycomb or shaped core and at least one sheet of material bonded to the honeycomb or shaped core.

Abstract: In some embodiments, a shaft testing device comprises a support comprising a non-contact bearing. The support is arranged to support a workpiece such as a shaft. A loading mechanism comprises a non-contact bearing. The loading mechanism is arranged to apply a load to the shaft. In some embodiments, the load is applied orthogonal to a longitudinal axis of the shaft. In some embodiments, a non-contact bearing comprises an air bearing.

Abstract: In some embodiments, an archery bow limb assembly comprises a first limb, a second limb and a spacer. The spacer contacts the first limb and the second limb. The first limb comprises a limb material. The spacer comprises a spacer material comprising a higher elastic modulus than the limb material. A width of the spacer is less than a width of the first limb.

Abstract: In some embodiments, an arrow comprises a shaft and a notch in an end of the arrow. The notch is arranged to receive a bowstring. A first finger recess and a second finger recess are located in proximity to the notch. The first finger recess and the second finger recess comprise opposed diverging surfaces.