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7e24b3de83 Notes from MK's PCB livestream - 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 Latest commits for file Docs/precadsr.pdf Latest commits for file Fireball/Fireball_panel.kicad_pro Latest commits for file Images/IMG_6753.JPG **Untested hardware and software — Do not assume anything works! Repo uses submodules aoKicad and Kosmo_panel directories. If desired, copy the source along with the multipliers here, tweak the variables themselves v_wall(h=4, l=height-rail_clearance*2-thickness); // top horizontal rib // h_wall(h=1.6, l=right_rib_x); // middle horizontal rib // h_wall(h=4, l=right_rib_x); // one more vertical to mount the circuit board for a single 1 mm² wires, reinforced insulation, conductor diameter 0.9mm, outer diameter 1.5mm, 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 outer diameter, generated with StandardBox.py) (https://www.bourns.com/data/global/pdfs/SRP5030T.pdf Shielded Power Inductor WE-PD 7345 Wuerth Shielded Power Inductor WE-PD TypLS Wuerth Shielded Power Inductor, Ms50T, SMD, Fixed inductor, SMD, https://neosid.de/import-data/product-pdf/neoFestind_SMPIC0602H.pdf Neosid Power Inductor Ms50T SMD Fixed inductor SMD magnetically shielded Neosid, Inductor, SM-PIC1004H, Fixed inductor, SMD, magnetically shielded, https://neosid.de/import-data/product-pdf/neoFestind_SMs95SMs95p.pdf Neosid Inductor SMs42 Fixed inductor SMD magnetically shielded Inductor SMD 2512 (6332 Metric), 2.6mm thick, Vishay WKS2512, Terminal length (T) 1.19mm, 5 to 200 milli Ohm (http://http://www.vishay.com/docs/30108/wsk.pdf Power Metal Strip Wire Horizontal pin pitch 32mm length 23.37mm diameter 12.7mm Vishay IHA-201 Inductor, Axial series, Axial, Horizontal, pin pitch=15mm, , length*diameter=11*8mm^2, Electrolytic Capacitor, http://cdn-reichelt.de/documents/datenblatt/B300/TANTAL-TB-Serie%23.pdf CP Radial_Tantal series Radial pin pitch 5.00mm diameter 7.5mm width 4.6mm Capacitor C, Rect series, Radial, pin pitch=10.00mm, , diameter*width=14.5*5.0mm^2, Capacitor, http://www.vishay.com/docs/28535/vy2series.pdf C Disc series Radial pin pitch 2.54mm size 28.4x6.2mm^2 drill 1.1mm pad 2.1mm Terminal Block Phoenix MKDS-3-9-5.08, 9 pins, pitch 3.81mm, size 15.1x7.3mm^2, drill diamater 1.3mm, pad diameter 3mm, 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 ipc_gullwing_generator.py EQFP, 144 Pin (http://ww1.microchip.com/downloads/en/PackagingSpec/00000049BQ.pdf#page=425), generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-131-02-xx-DV-TE, 31.

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