A method of assembling a magnetic-core assembly, the magnetic-core assembly including a magnetic-core made up of a plurality of lamination stacks clamped between a first and a second compression plate, the method comprising: assembling a plurality of lamination stacks; staging the plurality of lamination stacks to provide a magnetic-core assembly; assembling a magnetic-core assembling-tool around the magnetic-core assembly; and injecting magnet retention adhesive into a plurality of magnet retention slots in the magnetic-core assembly housed in the magnetic-core assembling tool; wherein assembling the magnetic-core assembling-tool around the magnetic-core assembly comprises: fitting a first compression plate alignment guide to the first compression plate of the magnetic-core assembly; attaching a plurality of semiannular tension bars to the first compression plate alignment guide, a first end of each semiannular tension bar attached to the first compression plate alignment guide; fitting a second compression plate alignment guide to the second compression plate of the magnetic-core assembly and/or within a space surrounded by the plurality of semiannular tension bars; and attaching a clamping plate to the plurality of semiannular tension bars, a second end of each semiannular tension bar attached to the clamping plate; wherein the semiannular tension bars include one or more lamination stack aligning surfaces defined by an internal annular surface of an annulus defined by the semiannular tension bars and configured to precisely abut the outward facing surfaces of the lamination stacks, thereby further aligning the lamination stacks with one another and/or with the compression plates. assembling a plurality of lamination stacks; staging the plurality of lamination stacks to provide a magnetic-core assembly; assembling a magnetic-core assembling-tool around the magnetic-core assembly; and injecting magnet retention adhesive into a plurality of magnet retention slots in the magnetic-core assembly housed in the magnetic-core assembling tool; wherein assembling the magnetic-core assembling-tool around the magnetic-core assembly comprises: fitting a first compression plate alignment guide to the first compression plate of the magnetic-core assembly; attaching a plurality of semiannular tension bars to the first compression plate alignment guide, a first end of each semiannular tension bar attached to the first compression plate alignment guide; fitting a second compression plate alignment guide to the second compression plate of the magnetic-core assembly and/or within a space surrounded by the plurality of semiannular tension bars; and attaching a clamping plate to the plurality of semiannular tension bars, a second end of each semiannular tension bar attached to the clamping plate; wherein the semiannular tension bars include one or more lamination stack aligning surfaces defined by an internal annular surface of an annulus defined by the semiannular tension bars and configured to precisely abut the outward facing surfaces of the lamination stacks, thereby further aligning the lamination stacks with one another and/or with the compression plates. fitting a first compression plate alignment guide to the first compression plate of the magnetic-core assembly; attaching a plurality of semiannular tension bars to the first compression plate alignment guide, a first end of each semiannular tension bar attached to the first compression plate alignment guide; fitting a second compression plate alignment guide to the second compression plate of the magnetic-core assembly and/or within a space surrounded by the plurality of semiannular tension bars; and attaching a clamping plate to the plurality of semiannular tension bars, a second end of each semiannular tension bar attached to the clamping plate; wherein the semiannular tension bars include one or more lamination stack aligning surfaces defined by an internal annular surface of an annulus defined by the semiannular tension bars and configured to precisely abut the outward facing surfaces of the lamination stacks, thereby further aligning the lamination stacks with one another and/or with the compression plates.