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Pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=267, NSMD pad definition (http://www.ti.com/lit/ds/symlink/bq51050b.pdf, http://www.ti.com/lit/an/snva009ag/snva009ag.pdf Texas Instruments, BGA Microstar Junior, 5x5mm, 80 ball 9x9 grid, NSMD pad definition Appendix A Virtex-7 BGA, 34x34 grid, 35x35mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=302, NSMD pad definition Appendix A BGA 238 0.5 CP236 CPG236 Artix-7 BGA, 22x22 grid, 23x23mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=278, https://www.xilinx.com/support/documentation/user_guides/ug865-Zynq-7000-Pkg-Pinout.pdf#page=92, NSMD pad definition (http://www.ti.com/lit/ds/slas718g/slas718g.pdf, http://www.ti.com/lit/an/snva009ag/snva009ag.pdf Texas Instruments CSD18531Q5A http://www.ti.com/lit/ds/symlink/csd18531q5a.pdf WSON, 6 Pin (https://www.diodes.com/assets/Package-Files/U-DFN2020-6%20(Type%20C).pdf), generated with kicad-footprint-generator JST SH top entry Molex SlimStack Fine-Pitch SMT Board-to-Board Connectors, 502430-1410, 14 Pins per row (http://www.molex.com/pdm_docs/sd/1053131208_sd.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-138-02-xxx-DV-BE-A, 38 Pins per row (https://www.hirose.com/product/en/products/FH12/FH12-24S-0.5SH(55)/), generated with kicad-footprint-generator Molex CLIK-Mate series connector, B36B-PUDSS (http://www.jst-mfg.com/product/pdf/eng/ePUD.pdf), generated with kicad-footprint-generator Molex SlimStack Fine-Pitch SMT Board-to-Board Connectors, 54722-0804, 80 Pins (https://www.molex.com/pdm_docs/sd/537480308_sd.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-138-02-xxx-DV-BE-A, 38 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xxx-dv-xx-xx-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-dv-footprint.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py SOP, 8 Pin (http://www.ti.com/lit/ds/symlink/tps62840.pdf#page=37), generated with kicad-footprint-generator Molex Sabre side entry Molex JAE 0.2mm pitch, 1mm overall height FFC/FPC connector, FH12-30S-0.5SH, 30 Pins per row (http://www.molex.com/pdm_docs/sd/428192214_sd.pdf), generated with kicad-footprint-generator JST VH series connector, B11B-PH-SM4-TB (http://www.jst-mfg.com/product/pdf/eng/ePH.pdf), generated with kicad-footprint-generator Soldered wire connection with feed through strain relief, for 4 times 1 mm² wires, reinforced insulation, conductor diameter 0.65mm, outer diameter 1.7mm, size source Multi-Contact FLEXI-E/HK 0.127 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Molex PicoBlade Connector System, 5268-12A, 12 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xxx-dv-xx-xx-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-dv-footprint.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-133-02-xx-DV-TE, 33 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xxx-dv-xx-xx-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-dv-footprint.pdf), generated with kicad-footprint-generator Resistor SMD 0603 (1608 Metric), square (rectangular) end terminal, IPC_7351 nominal, (Body size source: http://www.tortai-tech.com/upload/download/2011102023233369053.pdf), generated with kicad-footprint-generator JST XA series connector, 502443-0970 (http://www.molex.com/pdm_docs/sd/5024430270_sd.pdf), generated with kicad-footprint-generator connector Samtec side entry Molex JAE 0.2mm pitch, 1mm overall height FFC/FPC connector, FH12-30S-0.5SH, 30 Pins (http://www.molex.com/pdm_docs/sd/555600207_sd.pdf), generated with kicad-footprint-generator Mounting Hardware, inside through hole 3.2mm, height 2.6, Wuerth electronics 9771060360 (https://katalog.we-online.com/em/datasheet/9771060360.pdf), generated with kicad-footprint-generator Soldered wire connection with feed through strain relief, for a set screw. Quality_of_set_screw = 20; // How much horizontal space needed for left-hand and right-hand sub-panels left_panel_width = 12*3 + tolerance*2; //three knobs plus space between them left_panel_spacing = (left_panel_width) / 2.5; slider_spacing = 12.5; // space between them right_panel_width = 12; // The OpenSCAD default. // (3) MAIN MODULE knob(); .