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    This was brought to you by:

    block this user John LaRocco

    Student, Ph.D. Level

    Electrical and Computer Engineering, University of Canterbury, Christchurch

    Simulated Testing of a 3D Printed Revolver Cylinder

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    Additive manufacturing (AM) techniques have been utilized in firearms production. While 3D printing (3DP) has been previously utilized to fabricate firearms parts, fully 3D printed firearms have recently been demonstrated. A systemic shortcoming in many of these designs was a single shot limitation due to barrel deformation. A 3D printed ABS revolver chamber was designed to allow multiple shots without reloading. Simulated tests were performed upon it to evaluate the performance and durability of the cylinder with different ammunition, .22 LR and .22 Short. Deformations of up to .358 mm (from .22 LR) were observed. Structural weaknesses may degrade reliability as deformations accumulate. An ABS revolver cylinder is technically feasible, but significant constraints limit its functionality, such as ammunition capacity, reliability, and even ammunition selection. In addition, the volumetric displacement and sub-millimeter deformations induced by firing could assist in forensic investigations. For these reasons, it is unlikely that such designs will successfully compete with conventional firearms in the foreseeable future.

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    Description

    Title : Simulated Testing of a 3D Printed Revolver Cylinder
    Author(s) : John LaRocco
    Abstract : Additive manufacturing (AM) techniques have been utilized in firearms production. While 3D printing (3DP) has been previously utilized to fabricate firearms parts, fully 3D printed firearms have recently been demonstrated. A systemic shortcoming in many of these designs was a single shot limitation due to barrel deformation. A 3D printed ABS revolver chamber was designed to allow multiple shots without reloading. Simulated tests were performed upon it to evaluate the performance and durability of the cylinder with different ammunition, .22 LR and .22 Short. Deformations of up to .358 mm (from .22 LR) were observed. Structural weaknesses may degrade reliability as deformations accumulate. An ABS revolver cylinder is technically feasible, but significant constraints limit its functionality, such as ammunition capacity, reliability, and even ammunition selection. In addition, the volumetric displacement and sub-millimeter deformations induced by firing could assist in forensic investigations. For these reasons, it is unlikely that such designs will successfully compete with conventional firearms in the foreseeable future.
    Keywords : Additive Manufacturing, 3d printing, firearms

    Subject : Engineering
    Area : Engineering
    Language : English
    Year : 2013

    Affiliations Electrical and Computer Engineering, University of Canterbury, Christchurch
    Attribution Non Commercial

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    John's Peer Evaluation activity

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    Title of the work: Simulated Testing of a 3D Printed Revolver Cylinder

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    Title of the work: Simulated Testing of a 3D Printed Revolver Cylinder

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