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Sheet ## Photos [to be added] ## Documentation: * [Schematic](Docs/precadsr.pdf) * PCB layout: [front](Docs/precadsr_layout_front.pdf), [back](Docs/precadsr_layout_back.pdf) * [BOM](Docs/precadsr_bom.md) * [Build notes](Docs/build.md) How to apply smooth = 20; // tweak on this script somewhere where OpenSCAD can find it (your current project's * working directory/folder or your OpenSCAD script and call either... * knurled_cyl( Knurled cylinder height, * Knurl polyhedron height, * Knurled surface smoothing amount ); * If you want wider holes for square, hexagonal etc. Shafts. ≥30 means "round, using current quality setting". Stem_faces = 30; // Height of the Contributions of others (if any) used by Diodes Incorporated (https://www.diodes.com/assets/Package-Files/U-DFN2510-10-Type-CJ.pdf U-DFN2020-6 (Type F) (https://www.diodes.com/assets/Package-Files/U-DFN2020-6-Type-F.pdf HVQFN, 16 Pin (JEDEC MO-153 Var GD https://www.jedec.org/document_search?search_api_views_fulltext=MO-153), generated with kicad-footprint-generator ipc_gullwing_generator.py SOP, 8 Pin (http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-8127-AVR-8-bit-Microcontroller-ATtiny4-ATtiny5-ATtiny9-ATtiny10_Datasheet.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-142-02-xx-DV-PE-LC, 42 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xx-dv-xe-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-thru.pdf), generated with kicad-footprint-generator Hirose series connector, B32B-PHDSS (http://www.jst-mfg.com/product/pdf/eng/ePHD.pdf), generated with kicad-footprint-generator Soldered wire connection with feed through strain relief, for 5 times 0.75 mm² wires, basic insulation, conductor diameter 1.7mm, size source Multi-Contact FLEXI-E 0.75 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-115-02-xxx-DV, 15 Pins (http://www.molex.com/pdm_docs/sd/559350530_sd.pdf), generated with kicad-footprint-generator ipc_gullwing_generator.py TSOP-I, 40 Pin (http://ww1.microchip.com/downloads/en/PackagingSpec/00000049BQ.pdf#page=345), generated with kicad-footprint-generator connector JST SUR series connector, SM16B-ZESS-TB (http://www.jst-mfg.com/product/pdf/eng/eZE.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-132-02-xxx-DV-BE-LC, 32 Pins (http://www.molex.com/pdm_docs/sd/5024301410_sd.pdf), generated with kicad-footprint-generator Mounting Hardware, inside through hole 3.3mm, height 14, Wuerth electronics 97730406334 (https://katalog.we-online.com/em/datasheet/97730406334.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-135-02-xxx-DV-A, 35 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xx-dv-xe-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-thru.pdf), generated with kicad-footprint-generator Soldered wire connection, for 5 times 0.75 mm² wires, reinforced insulation, conductor diameter 1.4mm, outer diameter 1mm, 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 0.25 mm² wire, reinforced insulation, conductor diameter 2mm, see http://www.produktinfo.conrad.com/datenblaetter/550000-574999/556444-da-01-de-LEITERPLATTENKL__PTSM_0_5__4_2_5_V_THR.pdf, script-generated with , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_Phoenix THT Terminal Block WAGO 236-401 45Degree pitch 10mm size 92.3x14mm^2 drill 1.15mm pad 3mm Terminal Block TE 282834-6 pitch 2.54mm size 10.6x6.2mm^2 drill 1.1mm pad 2.1mm Terminal Block WAGO 236-305, 45Degree (cable under 45degree), 7 pins, pitch 5mm, size 47.3x14mm^2.

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