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1	BBT Side Mold Assy Hemphill, Bill 07 June 2022 (has links) This electronic document file set covers the design and fabrication information of the ETSU Guitar Building Project’s BBT (OM-sized) Side Mold Assy for use with the STEM Guitar Project’s standard acoustic guitar kit. The extended 'as built' data set contains an overview file and companion video, the 'parent' CADD drawing, CADD data for laser etching and cutting a drill &/or layout template, CADD drawings in AutoCAD .DWG and .DXF R12 formats of the centerline tool paths for creating the mold assembly pieces on an AXYZ CNC router, and support documentation for CAM applications including router bit specifications, feeds, speed, multi-pass data, and layer names (formatted for AXYZ's ToolPath CAM software). BBT acoustic guitar mold side assembly CAD CADD DWG CNC router luthier ETSU OM orchestra model STEM kit storefront plywood MDF edges centerline toolpaths laser template Acoustics, Dynamics, and Controls Algebra Algebraic Geometry Appalachian Studies Applied Mathematics Biology Computer-Aided Engineering and Design Engineering Education Engineering Science and Materials Forest Sciences Industrial and Product Design Manufacturing Music Other Engineering Physics Polymer and Organic Materials Polymer Chemistry Science and Mathematics Education
2	BBT Acoustic Alternative Top Bracing CADD Data Set-NoRev-2022Jun28 Hemphill, Bill 22 July 2022 (has links) This electronic document file set consists of an overview presentation (PDF-formatted) file and companion video (MP4) and CADD files (DWG & DXF) for laser cutting the ETSU-developed alternate top bracing designs and marking templates for the STEM Guitar Project’s BBT (OM-sized) standard acoustic guitar kit. The three (3) alternative BBT top bracing designs in this release are (a) a one-piece base for the standard kit's (Martin-style) bracing, (b) 277 Ladder-style bracing, and (c) an X-braced fan-style bracing similar to traditional European or so-called 'classical' acoustic guitars. The CADD data set for each of the three (3) top bracing designs includes (a) a nominal 24" x 18" x 3mm (0.118") Baltic birch plywood laser layout of (1) the one-piece base with slots, (2) pre-radiused and pre-scalloped vertical braces with tabs to ensure proper orientation and alignment, and (3) various gages and jigs and (b) a nominal 15" x 20" marking template. The 'provided as is" CADD data is formatted for use on a Universal Laser Systems (ULS) laser cutter digital (CNC) device. Each CADD drawing is also provided in two (2) formats: Autodesk AutoCAD 2007 .DWG and .DXF R12. Users should modify and adapt the CADD data as required to fit their equipment. This CADD data set is released and distributed under a Creative Commons license; users are also encouraged to make changes o the data and share (with attribution) their designs with the worldwide acoustic guitar building community. BBT acoustic guitar brace bracing top CADD CAD DWG DXF R12 lutier ETSU OM orchestra model STEM STEM Guitar building project kit storefront 3mm 0.118" Baltic birch plywood sheet 24 18 3mm 0.118 laser cut engrave etch marking template layout Martin Martin-style X-brace X-bracing X-braced X tone arm tonal variant alternative alt ladder 277 fan classicial European tab slot bump out radiused 300 inch 25 foot 762 meter radius base vertical scallop glue wood go-bar go bar deck jig fixture gage gauge headstock head plate neck contour fret stack stackable align alignment position orientation vertical perpendicular T1 upper bout lower kerfing sand chisel shape weight lighten light tone tap carbon-dioxide CO2 10.6 µm Universal Laser Systems ULS workboard waxed baker sheet Acoustics, Dynamics, and Controls Adult and Continuing Education Algebraic Geometry Appalachian Studies Art Education Educational Technology Elementary Education and Teaching Engineering Education Geometry and Topology Harmonic Analysis and Representation Higher Education and Teaching Industrial and Product Design Manufacturing Music Music Education Other Engineering Science and Materials Polymer and Organic Materials Science and Mathematics Education Secondary Education and Teaching Structural Materials Vocational Education
3	BBT Acoustic Alternative Top Bracing CADD Data Set-NoRev-2022Jun28 Hemphill, Bill 22 July 2022 (has links) This electronic document file set consists of an overview presentation (PDF-formatted) file and companion video (MP4) and CADD files (DWG & DXF) for laser cutting the ETSU-developed alternate top bracing designs and marking templates for the STEM Guitar Project’s BBT (OM-sized) standard acoustic guitar kit. The three (3) alternative BBT top bracing designs in this release are (a) a one-piece base for the standard kit's (Martin-style) bracing, (b) 277 Ladder-style bracing, and (c) an X-braced fan-style bracing similar to traditional European or so-called 'classical' acoustic guitars. The CADD data set for each of the three (3) top bracing designs includes (a) a nominal 24" x 18" x 3mm (0.118") Baltic birch plywood laser layout of (1) the one-piece base with slots, (2) pre-radiused and pre-scalloped vertical braces with tabs to ensure proper orientation and alignment, and (3) various gages and jigs and (b) a nominal 15" x 20" marking template. The 'provided as is" CADD data is formatted for use on a Universal Laser Systems (ULS) laser cutter digital (CNC) device. Each CADD drawing is also provided in two (2) formats: Autodesk AutoCAD 2007 .DWG and .DXF R12. Users should modify and adapt the CADD data as required to fit their equipment. This CADD data set is released and distributed under a Creative Commons license; users are also encouraged to make changes o the data and share (with attribution) their designs with the worldwide acoustic guitar building community. BBT acoustic guitar brace bracing top CADD CAD DWG DXF R12 lutier ETSU OM orchestra model STEM STEM Guitar building project kit storefront 3mm 0.118" Baltic birch plywood sheet 24 18 3mm 0.118 laser cut engrave etch marking template layout Martin Martin-style X-brace X-bracing X-braced X tone arm tonal variant alternative alt ladder 277 fan classicial European tab slot bump out radiused 300 inch 25 foot 762 meter radius base vertical scallop glue wood go-bar go bar deck jig fixture gage gauge headstock head plate neck contour fret stack stackable align alignment position orientation vertical perpendicular T1 upper bout lower kerfing sand chisel shape weight lighten light tone tap carbon-dioxide CO2 10.6 µm Universal Laser Systems ULS workboard waxed baker sheet Acoustics, Dynamics, and Controls Adult and Continuing Education Algebra Algebraic Geometry Appalachian Studies Applied Mathematics Art Education Biology Computer-Aided Engineering and Design Educational Technology Elementary Education and Teaching Engineering Education Engineering Science and Materials Forest Sciences Geometry and Topology Harmonic Analysis and Representation Industrial and Product Design Manufacturing Music Music Education Other Engineering Other Engineering Science and Materials Physics Polymer and Organic Materials Polymer Chemistry Science and Mathematics Education Secondary Education and Teaching Structural Materials Vocational Education

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