synth_tools

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0.301674 facet normal -4.395882e-001 7.536193e-001 4.886923e-001 vertex 1.361023e+000 -3.967888e+000 2.484855e+001 facet normal -8.884378e-01 -4.589969e-01 3.226323e-04 facet normal -0.172853 -0.0217758 0.984707 facet normal -1.087067e-001 -4.840000e-004 9.940737e-001 vertex -4.203549e+000 -8.732827e-001 2.495526e+001 facet normal 0.974929 0.222515 -0 facet normal -0.0376663 0.382433 0.923215 vertex -8.90914 -0.922563 3.82299 vertex -8.26214 3.54289 3.82299 vertex -1.78367 -8.96712 3.76384 vertex -6.36396 6.36396 3.82299 facet normal 9.838629e-002 -1.595903e-004 9.951483e-001 facet normal 0.979666 0.187891 0.0703596 vertex 9.42101 -6.42313 0.18985 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? SR2511 series are 11.43? Maybe more? Distance between pcb and front panel, horizontal PCB mount, https://www.neutrik.com/en/product/nc3mbhl B Series, 3 pole female XLR receptacle, grounding: mating connector shell and front panel, horizontal PCB mount, http://cherryamericas.com/wp-content/uploads/2014/12/mx_cat.pdf Cherry MX keyswitch, 2.00u, http://matias.ca/switches/ Matias ALPS keyswitch 2.25u Matias/ALPS keyswitch, 2.00u, vertical, PCB mount, asymmetric push, https://www.neutrik.com/en/product/nc3fbv1-da B Series, 4 pole female XLR receptacle, grounding: ground contact to mating connector shell and front panel, lateral left PCB mount, https://www.neutrik.com/en/product/nc3mbhr B Series, 3 pole XLR female receptacle with 6.35mm (1/4in) mono jack, switched, gold plated contacts, half threaded nose and offset PCB pins, https://www.neutrik.com/en/product/nmj6hfd4 M Series, 6.35mm (1/4in) mono jack without switching contact, horizontal PCB mount, (http://www.qingpu-electronics.com/en/products/WQP-PJ398SM-362.html WQP-PJ398SM WQP-PJ301M-12 TRS 3.5mm mono vertical jack thonkiconn qingpu 3.5mm horizontal headphones jack, http://akizukidenshi.com/download/ds/switronic/ST-005-G.pdf Connector Audio Switronic ST-005-G 3.5mm Horizontal Waterproof Stereo Headphones Jack, https://www.technik.com.hk/images/pdf_product/WP3002-PA66-A.pdf audio jack stereo TRS 3.5mm, horizontal, through-hole, https://www.cui.com/product/resource/sj1-353xng.pdf TRS 3.5mm, horizontal, through-hole, with switch, vertical shaft, http://www.alps.com/prod/info/E/HTML/Encoder/Incremental/EC11/EC11E15204A3.html Alps rotary encoder, EC12E... With switch, vertical shaft, mounting holes 33.3mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 37-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, female, pitch 2.77x2.84mm, pin-PCB-offset 9.9mm, distance of mounting holes 33.3mm, distance of mounting holes 25mm, distance of mounting holes 63.5mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 25-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, female, pitch 2.77x2.84mm, pin-PCB-offset 14.56mm, distance of mounting holes 63.5mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 25-pin D-Sub connector, horizontal/angled (90 deg), THT-mount, male, pitch 2.29x1.98mm, pin-PCB-offset 9.4mm, see http://docs-europe.electrocomponents.com/webdocs/1585/0900766b81585df2.pdf 15-pin D-Sub connector horizontal angled 90deg THT female pitch 2.29x1.98mm pin-PCB-offset 8.35mm mounting-holes-distance 33.3mm mounting-hole-offset 33.3mm 15-pin D-Sub connector horizontal angled 90deg THT male pitch 2.77x2.84mm pin-PCB-offset 9.4mm 15-pin D-Sub connector horizontal angled 90deg THT male pitch 2.29x1.98mm pin-PCB-offset 9.4mm 9-pin D-Sub connector horizontal.

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