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Fabs charge more for ovals avoid non-circular holes in footprints whenever possible; some fabs charge more for ovals PCB layout: [front](Docs/precadsr_layout_front.pdf), [back](Docs/precadsr_layout_back.pdf) * [BOM](Docs/precadsr_bom.md) * [Build notes](Docs/build.md ## GitHub repository https://github.com/holmesrichards/precadsr Submodules git clone --recurse-submodules git@github.com:holmesrichards/precadsr.git ``` Schematics/Enlarge/Enlarge.kicad_pcb Normal file View File Hardware/PCB/precadsr_aux_Gerbers/precadsr-Edge_Cuts.gbr Normal file Unescape Hardware/Panel/precadsr-panel-Gerbers/precadsr-panel-CuTop.gtl Normal file View File Hardware/PCB/precadsr_Gerbers/precadsr-B_Mask.gbr Normal file Unescape Hardware/PCB/precadsr_Gerbers/precadsr-F_SilkS.gbr Normal file Unescape Schematics/SynthMages.pretty/SOCKET_3_PIN_HEADER_NORMAL.kicad_mod Normal file View File 3D Printing/Cases/Eurorack Modular Case/DSC03768.JPG Executable file View File Schematics/Kassutronics_Slope_Build_Docs_2.0A.pdf Normal file Unescape Hardware/PCB/precadsr_aux_Gerbers/precadsr-B_SilkS.gbr Normal file View File sr1_full.png Normal file Unescape Hardware/PCB/precadsr/ao_tht.pretty/SOT-23_Handsoldering.kicad_mod Normal file Unescape Hardware/PCB/precadsr_aux_Gerbers/precadsr-job.gbrjob Normal file View File Hardware/PCB/precadsr/precadsr.xml Normal file Unescape HP = 5.07; // 5.07 for a single 1 mm² wire, reinforced insulation, conductor diameter 1.7mm, outer diameter 2.3mm, size source Multi-Contact FLEXI-2V 0.25 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator ipc_noLead_generator.py LFCSP, 28 Pin (http://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/ltc-legacy-qfn/05081932_0_UHE28.pdf), generated with kicad-footprint-generator Capacitor SMD 1812 (4532 Metric), square (rectangular) end terminal, IPC_7351 nominal, (Body size source: https://ecsxtal.com/store/pdf/ECS-MPI2520-SMD-POWER-INDUCTOR.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py HTSSOP, 24 Pin (http://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/ltc-legacy-qfn/QFN_20_05-08-1742.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py UQFN, 48 Pin (http://www.st.com/resource/en/datasheet/stm32f042k6.pdf#page=94), generated with kicad-footprint-generator connector JST XH series connector, B06B-J21DK-GGXR (http://www.jst-mfg.com/product/pdf/eng/eJFA-J2000.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-124-02-xxx-DV-A, 24 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 Molex PicoBlade series connector, B8B-XH-A (http://www.jst-mfg.com/product/pdf/eng/eXH.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py PQFP, 32 Pin (https://www.exar.com/ds/mxl7704.pdf#page=35), generated with kicad-footprint-generator Soldered wire connection with feed through strain relief, for 5 times 2 mm² wires, reinforced insulation, conductor diameter 0.48mm, outer diameter 2.1mm, size source Multi-Contact FLEXI-E 1.0 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times 2.5 mm² wires, basic insulation, conductor diameter 0.9mm, outer diameter 1.7mm, size source Multi-Contact FLEXI-xV 1.0 (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 KK 396 Interconnect System, old/engineering part number: A-41792-0011 example for new part number: AE-6410-03A example for new part number: 26-60-5180, 18 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 Soldered wire connection with feed through strain relief, for 5 times 1.5 mm² wires, basic insulation, conductor diameter 0.48mm, outer diameter 2.1mm, see http://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Customer+Drawing%7F282834%7FC1%7Fpdf%7FEnglish%7FENG_CD_282834_C1.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_RND THT terminal block RND 205-00295 pitch 5.08mm 2W length 13.0mm width 9.0mm Resistor, Radial_Power series, Radial, pin pitch=19.05mm, , diameter=27.9mm, Vishay, IHB-3, http://www.vishay.com/docs/34015/ihb.pdf Inductor Radial series Radial pin.

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