One or more embodiments of a training bat including a shaft and a hitting head are disclosed. The shaft includes a handle and hand placement indicators. The shaft includes a first end and a second end. The hitting head is attached to the second end of the shaft. The hitting head includes a flat hitting surface which is substantially flat and a back end opposite the flat hitting surface. The hand placement indicators indicate a position for at least one of the hands of a user on the handle and the hand placement indicators indicate an alignment with the back end of the hitting head.

A method is provided. A center of mass of the bat is calculated based at least in part on the physical characteristics, the length, and the drop. A first and second mass distribution for an insert having a central axis and a length is calculated based at least in part on the calculated center of mass. The first mass distribution is symmetric about the central axis along the entire length, and the second mass distribution includes a first density for at least one low mass region and a second density for a high mass region with the second density is greater than the first density. Then, the insert is 3D printing based at least in part on the first and second mass distributions.

A method is provided. A center of mass of the bat is calculated based at least in part on the physical characteristics, the length, and the drop. A first and second mass distribution for an insert having a central axis and a length is calculated based at least in part on the calculated center of mass. The first mass distribution is symmetric about the central axis along the entire length, and the second mass distribution includes a first density for at least one low mass region and a second density for a high mass region with the second density is greater than the first density. Then, the insert is 3D printing based at least in part on the first and second mass distributions.

Embodiments are directed toward a bat, such as a softball or baseball bat, that includes a handle and a barrel. The barrel is preferably coupled to the handle. The barrel preferably defines a longitudinal axis. The barrel preferably has asymmetrical composition or construction about the longitudinal axis of the barrel.

Embodiments are directed toward a bat, such as a softball or baseball bat, that includes a handle and a barrel. The barrel is preferably coupled to the handle. The barrel preferably defines a longitudinal axis. The barrel preferably has asymmetrical composition or construction about the longitudinal axis of the barrel.

Baseball bats described herein may have handle, throat and/or barrel portions that include non-circular cross-sections.

Baseball bats described herein may have handle, throat and/or barrel portions that include non-circular cross-sections.

A baseball or softball bat includes a barrel extending from a handle having a knob. A cap defining a chamber partially filled with gel is attached to an end of the barrel or the knob for dissipating vibrations created when the bat strikes an object.

A ball bat includes a barrel portion, a handle portion, and a joint connecting the handle portion to the barrel portion. In some embodiments, the joint includes a releasable connector configured to releasably connect the barrel portion to the handle portion. In some embodiments, the joint includes two releasable connectors to releasably connect the barrel portion to the handle portion. The ball bat may include a flexible rod element positioned between the two releasable connectors. The rod element may include an elastomeric material. In some embodiments, the ball bat may further include a safety connector between the barrel portion and the handle portion or a releasable connector may include a threaded connection to resist release of the releasable connector. In some embodiments, the joint may include a rotatable element for adjusting flex.

A ball bat includes a barrel portion, a handle portion, and a joint connecting the handle portion to the barrel portion. In some embodiments, the joint includes a releasable connector configured to releasably connect the barrel portion to the handle portion. In some embodiments, the joint includes two releasable connectors to releasably connect the barrel portion to the handle portion. The ball bat may include a flexible rod element positioned between the two releasable connectors. The rod element may include an elastomeric material. In some embodiments, the ball bat may further include a safety connector between the barrel portion and the handle portion or a releasable connector may include a threaded connection to resist release of the releasable connector. In some embodiments, the joint may include a rotatable element for adjusting flex.