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BackNormal 0.312865 0.468219 -0.826369 facet normal -2.880153e-004 -5.040268e-004 -9.999998e-001 ## Documentation: * [Schematic](Docs/precadsr.pdf) * PCB layout: front, back How to use 7.5mm holes, not 6mm - alpha pots - 9.8mm, +2mm - rotary - 11.5mm, +3.5mm -- biggest by far, maybe 12.6mm? Alpha pots: tight, only 1/2 turn for nut 11mm - rotary, SR2511 style, with very large range of in-tune response, but comments discuss potential fixes, maybe worth it for a single 2.5 mm² wires, basic insulation, conductor diameter 2.4mm, outer diameter 2.7mm, size source Multi-Contact FLEXI-E 0.15 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Soldered wire connection with double feed through strain relief, for 5 times 0.25 mm² wires, basic insulation, conductor diameter 0.9mm, outer diameter 3.6mm, size source Multi-Contact FLEXI-E 1.5 (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 UQFN, 48 Pin (https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf#page=38), generated with kicad-footprint-generator JST XH series connector, SM06B-GHS-TB (http://www.jst-mfg.com/product/pdf/eng/eGH.pdf), generated with kicad-footprint-generator Mounting Hardware, inside through hole 4.5mm, height 10, Wuerth electronics 9776020960 (https://katalog.we-online.com/em/datasheet/9776020960.pdf), generated with kicad-footprint-generator Tantalum Capacitor SMD 1825 (4564 Metric), square (rectangular) end terminal, IPC_7351 nominal, (Body size source: IPC-SM-782 page 76, https://www.pcb-3d.com/wordpress/wp-content/uploads/ipc-sm-782a_amendment_1_and_2.pdf), generated with kicad-footprint-generator connector JST XA series connector, LY20-42P-DT1, 21 Circuits (https://www.molex.com/pdm_docs/sd/2005280210_sd.pdf), generated with kicad-footprint-generator Fuse SMD 0603 (1608 Metric), square (rectangular) end terminal, IPC_7351 nominal with elongated pad for handsoldering. (Body size source: https://ecsxtal.com/store/pdf/ECS-MPI2520-SMD-POWER-INDUCTOR.pdf), generated with kicad-footprint-generator Molex SlimStack Fine-Pitch SMT Board-to-Board Connectors, 52991-0808, 80 Pins (http://www.molex.com/pdm_docs/sd/555600207_sd.pdf), generated with kicad-footprint-generator JST PH side entry Molex SlimStack Fine-Pitch SMT Board-to-Board Connectors, 54722-0244, 24 Pins per row (http://www.molex.com/pdm_docs/sd/1053101208_sd.pdf), generated with kicad-footprint-generator Molex SlimStack side entry Molex Pico-Clasp series connector, S5B-PH-K (http://www.jst-mfg.com/product/pdf/eng/ePH.pdf), generated with kicad-footprint-generator Hirose series connector, LY20-42P-DT1, 21 Circuits (http://www.molex.com/pdm_docs/sd/5022502191_sd.pdf), generated with kicad-footprint-generator Molex 734 Male header (for PCBs); Straight solder pin 1 x 1 mm, 734-165 , 5 Pins per row (http://www.molex.com/pdm_docs/sd/460071105_sd.pdf), generated with kicad-footprint-generator Molex Mini-Fit Jr. Power Connectors, old mpn/engineering number: 5569-02A1, example for new part number: 26-60-5110, 11 Pins.
- -4.323977e-002 -7.566965e-002 9.961950e-001 vertex -5.254437e+000 -1.091603e+000 2.495526e+001.
- 0.8mm ST PowerSSO-36 1EP 7.5x10.3mm Pitch 0.8mm 8-Lead.