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Panel, subtract holes // v_wall(h=4, l=height-rail_clearance*2-thickness); // top horizontal rib h_wall(h=1.6, l=right_rib_x); // middle-bottom h rib h_wall(h=1.6, l=right_rib_x); // one more vertical to mount a circuit board to, dead center // one more to mount the circuit board to, dead center // one more to mount a circuit board to, dead center // pcb_holder(h=10, l=top_row-rail_clearance*2-15-thickness, th=1.15, wall_thickness=1); // lower h-rib reinforcer ## 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 use the 4 pins module CMS SOT223 6 pins, http://www.ti.com/lit/ds/symlink/tps737.pdf module CMS SOT223 5 pins, pitch 10mm, size 62.3x14mm^2, drill diamater 1.15mm, pad diameter 2.5mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00001_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_RND THT terminal block RND 205-00297, 12 pins, pitch 2.54mm, package size 11.6x8.5x10.4mm^3, https://www.recom-power.com/pdf/Innoline/R-78Sxx-0.1.pdf dc-dc recom buck lga-25 pitch 2.29mm Traco TDN 5WI Series, 5W (https://www.tracopower.com/sites/default/files/products/datasheets/tdn5wi_datasheet.pdf#page=4 Traco 12W, THT (https://www.tracopower.com/sites/default/files/products/datasheets/tel12_datasheet.pdf traco dcdc tht 12w DCDC-Converter, TRACO, TEN10-xxxx, single output, SIP package style, https://power.murata.com/data/power/ncl/kdc_mej1.pdf Abracon Miniature Ceramic Smd Crystal ABM8G http://www.abracon.com/Resonators/ABM8G.pdf, 3.2x2.5mm^2 package crystal Epson Toyocom FA-238 series http://www.mouser.com/ds/2/137/1721499-465440.pdf, hand-soldering, 3.2x2.5mm^2 package SMD Crystal Seiko Epson SG-210 https://support.epson.biz/td/api/doc_check.php?mode=dl⟨=en&Parts=SG-210SED, 2.5x2.0mm^2 package SMD Crystal Oscillator Seiko Epson SG-8002CA https://support.epson.biz/td/api/doc_check.php?mode=dl⟨=en&Parts=SG-8002DC, 7.0x5.0mm^2 package Abracon Miniature Ceramic Smd Crystal ABM10 http://www.abracon.com/Resonators/ABM10.pdf SMD SMT SPST EVQP2 0 4 2 Button_Switch_SMD SW_SPST_EVQPE1 Light Touch Switch, https://industrial.panasonic.com/cdbs/www-data/pdf/ATK0000/ATK0000CE7.pdf Surface Mount Tactile Switch with High Contact Reliability, Top-actuated Model, without Ground Terminal, without Boss Ultra-small-sized Tactile Switch for High-Density Mounting, 7.3mm height, https://omronfs.omron.com/en_US/ecb/products/pdf/en-b3fs.pdf Surface Mount Bridge Rectifier Diode SMD 0805 (2012 Metric), square (rectangular) end terminal, IPC_7351 nominal, (Body size from: http://www.kemet.com/Lists/ProductCatalog/Attachments/253/KEM_TC101_STD.pdf), generated with kicad-footprint-generator JST XA series connector, BM03B-SURS-TF (http://www.jst-mfg.com/product/pdf/eng/eSUR.pdf), generated with kicad-footprint-generator Molex PicoBlade series connector, S03B-XASK-1N-BN (http://www.jst-mfg.com/product/pdf/eng/eXA1.pdf), generated with kicad-footprint-generator Soldered wire connection with feed through strain relief, for 3 times outer diameter, generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-111-02-xxx-DV-BE-LC, 11 Pins (http://www.molex.com/pdm_docs/sd/022272021_sd.pdf), generated with kicad-footprint-generator Molex LY 20 series connector, LY20-10P-DLT1, 5 Circuits (http://www.jae.com/z-en/pdf_download_exec.cfm?param=SJ103130.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py TQFN, 20 Pin (https://www.analog.com/media/en/technical-documentation/data-sheets/3553fc.pdf#page=34), generated with kicad-footprint-generator Molex CLIK-Mate series connector, B15B-EH-A (http://www.jst-mfg.com/product/pdf/eng/eEH.pdf), generated with kicad-footprint-generator Hirose FH12, FFC/FPC connector, FH12-35S-0.5SH, 35 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-128-02-xx-DV-PE-LC, 28 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 JST ZE series connector, B10B-PUDSS (http://www.jst-mfg.com/product/pdf/eng/ePUD.pdf), generated with kicad-footprint-generator Molex PicoBlade series connector, 53398-1171 (http://www.molex.com/pdm_docs/sd/533980271_sd.pdf), generated with kicad-footprint-generator Hirose DF63 through hole, DF11-8DP-2DSA, 4 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.

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