A system comprising: a laser deposition device operatively coupled to a fiber laser for emitting a laser beam and a metal material delivery device, wherein the laser deposition device comprises a right angle triangular prism acting as a beam directing optics for the laser beam and a prism mount structured to retain the right angle triangular prism, the system being characterized in that the prism mount comprising: a ledge structured to engage a first side of the right angle triangular prism having an acute end defined by an acute angle formed between the first side and a second side of the right angle triangular prism wherein the first side forms an opposing face to the second side; a support surface positioned opposite the ledge and structured to engage the second side of the right angle triangular prism, wherein the ledge and the support surface form a receiving space into which the right angle triangular prism can be received when installed; a retaining means (304, 308, 502) to slidably engage a third side of the right angle triangular prism and that produces a retaining force such that the acute end of the right angle triangular prism is forced into the receiving space formed by the ledge and the support surface; and an azimuthal angle control means structured to enforce a fixed azimuthal angle when the prism mount is inserted into the laser deposition device. a laser deposition device operatively coupled to a fiber laser for emitting a laser beam and a metal material delivery device, wherein the laser deposition device comprises a right angle triangular prism acting as a beam directing optics for the laser beam and a prism mount structured to retain the right angle triangular prism, the system being characterized in that the prism mount comprising: a ledge structured to engage a first side of the right angle triangular prism having an acute end defined by an acute angle formed between the first side and a second side of the right angle triangular prism wherein the first side forms an opposing face to the second side; a support surface positioned opposite the ledge and structured to engage the second side of the right angle triangular prism, wherein the ledge and the support surface form a receiving space into which the right angle triangular prism can be received when installed; a retaining means (304, 308, 502) to slidably engage a third side of the right angle triangular prism and that produces a retaining force such that the acute end of the right angle triangular prism is forced into the receiving space formed by the ledge and the support surface; and an azimuthal angle control means structured to enforce a fixed azimuthal angle when the prism mount is inserted into the laser deposition device. a ledge structured to engage a first side of the right angle triangular prism having an acute end defined by an acute angle formed between the first side and a second side of the right angle triangular prism wherein the first side forms an opposing face to the second side; a support surface positioned opposite the ledge and structured to engage the second side of the right angle triangular prism, wherein the ledge and the support surface form a receiving space into which the right angle triangular prism can be received when installed; a retaining means (304, 308, 502) to slidably engage a third side of the right angle triangular prism and that produces a retaining force such that the acute end of the right angle triangular prism is forced into the receiving space formed by the ledge and the support surface; and an azimuthal angle control means structured to enforce a fixed azimuthal angle when the prism mount is inserted into the laser deposition device.