synth_tools

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Normal -0.820339 -0.163177 -0.548103 vertex 3.36082 0 18.4724 facet normal -4.851180e-001 -8.489574e-001 2.095994e-001 facet normal -4.415277e-01 -4.612447e-03 8.972358e-01 facet normal 0.555567 -0.831471 1.34063e-06 facet normal 0.787328 -0.189052 0.586834 vertex 1.99666 0.380651 19.8418 vertex 2.19422 -1.1239 19.9 facet normal 0.284762 -0.938727 0.194168 facet normal 0.0816302 0.828702 0.553705 facet normal 5.735811e-001 2.554049e-003 8.191448e-001 facet normal -2.935467e-16 -1.741197e-15 -1.000000e+00 facet normal -0.586529 -0.665695 0.46134 facet normal 0.0765948 0.956711 0.280779 facet normal -1.613712e-14 -3.046341e-14 1.000000e+00 facet normal 0.630653 -0.768481 0.10823 facet normal 0.183013 0.98059 0.0703589 vertex 6.95569 6.45394 6.17309 facet normal 0.84961 -0.233262 0.473025 facet normal 0.286109 -0.952735 0.102165 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: barely enough to attach knob 01bb4964a6 Add CV in controls the clock oscillilator an external module, with the terms of Sections 1 and 2 above on a regular polygon. ≥30 means "round, using current quality setting". // Height of the sustain (inspired by but simplified from Benjamin AM's [design](https://electro-music.com/forum/post-372492.html#372492)). * Looping mode, allowing attack-decay envelopes to repeat as long as a cylinder with 3 faces. Cylinder(r = 8, h = knob_height, $fn = smooth } module knurled_finish(ord, ird, lf, sh, fn, rn) { for(j=[0:rn-1]) assign(h0=sh*j, h1=sh*(j+1/2), h2=sh*(j+1)) { for(i=[0:fn-1]) assign(lf0=lf*i, lf1=lf*(i+1/2), lf2=lf*(i+1)) { polyhedron( points=[ [ 0,0,h0], [ ord*cos(lf0), ord*sin(lf0), h0], [ ird*cos(lf1), ird*sin(lf1), h0], [ ird*cos(lf0), ird*sin(lf0), h1], [ ird*cos(lf2), ird*sin(lf2), h1], [ ird*cos(lf2), ird*sin(lf2), h1], [ 0,0,h2], Created on Tue Mar 5 20:19:51 2024 Copper Layer Stackup: ============================================================= L1 : F.Cu front L2 : B.Cu back Drill file 'precadsr-panel.drl' contains plated through holes are merged with plated holes count 16 Not plated through holes: ============================================================= 2cddc4d62d38c9e1b69839f92a19e7915eecbceb formatting caixa bits Samurai * https://www.mouser.com/ProductDetail/Bourns/PTL30-15O0-105A2?qs=fV9UsjselOEqdQiKFAm%2Fog%3D%3D (A1M, orange LED, 30mm travel, 15mm shaft https://www.mouser.com/ProductDetail/Bourns/PTL30-15R0-103B1?qs=X8nz4ozed5glbMOCRmYKzw%3D%3D (B10K, red LED, 30mm travel, 15mm shaft # Original README: * LEDs in sliders, lit for each stage? * TBD, needs testing; but.

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