synth_tools

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3.54289 3.82299 vertex -4.96057 -7.50438 3.82299 facet normal 0.0754488 -0.766032 -0.63836 facet normal -0.714676 0.586516 0.3811 facet normal -0.634378 -0.767816 0.0895789 facet normal -0.290292 -0.950491 0.11089 facet normal -2.880153e-004 -5.040268e-004 -9.999998e-001 ## 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 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 drone / manual version, https://kassu2000.blogspot.com/2018/07/avalance-vco.html for a single 0.127 mm² wires, basic insulation, conductor diameter 0.5mm, outer diameter 2.1mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00232_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_WAGO THT Terminal Block 4Ucon ItemNo. 10687, 10 pins, pitch 5mm, size 35x9mm^2, drill diamater 1.15mm, pad diameter 3mm, see , script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_Phoenix THT Terminal Block WAGO 236-509 45Degree pitch 7.5mm size 54.8x14mm^2 drill 1.15mm pad 3mm Terminal Block WAGO 804-311, 45Degree (cable under 45degree), 24 pins, pitch 10.2mm, size 86.4x8.3mm^2, drill diamater 1.3mm, pad diameter 2.5mm, see http://cdn-reichelt.de/documents/datenblatt/C151/RND_205-00023_DB_EN.pdf, script-generated using https://github.com/pointhi/kicad-footprint-generator/scripts/TerminalBlock_4Ucon THT Terminal Block Phoenix MKDS-3-12-5.08 pitch 5.08mm size 20.3x11.2mm^2 drill 1.3mm pad 2.6mm Terminal Block WAGO 236-404 45Degree pitch 10mm size 25.8x8.2mm^2 drill 1.3mm pad 2.6mm Terminal Block Phoenix MPT-0,5-9-2.54 pitch 2.54mm size 30.94x6.5mm^2 drill 1.1mm pad 2.1mm terminal block RND 205-00024, 3.

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