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Normal -8.839686e-01 4.675462e-01 1.957651e-04 vertex -1.038334e+02 1.020862e+02 4.255000e+01 facet normal -4.792339e-001 -8.386592e-001 2.588158e-001 facet normal 0.247224 0.963862 0.099246 facet normal 9.730858e-01 3.129910e-03 -2.304220e-01 facet normal -4.740342e-001 8.135308e-001 3.368371e-001 facet normal -2.801356e-02 9.996075e-01 3.524119e-04 facet normal -7.808552e-001 -3.476637e-003 6.247023e-001 vertex -4.055689e+000 -8.726244e-001 2.484855e+001 facet normal -0.225392 -0.184975 0.956547 facet normal -0.828719 0.0816185 0.553682 facet normal -0.768481 -0.630653 0.10823 facet normal 0.338904 0.0729974 0.937985 vertex 0.26034 7.27143 6.89409 facet normal -0.88053 0.472795 0.0336363 facet normal -0.174189 0.420502 0.890414 facet normal 8.888848e-01 1.046893e-03 4.581297e-01 vertex -1.082986e+02 9.695134e+01 5.006728e+00 facet normal -0.0816302 -0.828702 0.553705 facet normal 9.964600e-01 8.406740e-02 -2.572556e-04 facet normal 0.485049 0.124364 0.865599 vertex 5.2499 4.56563 7.05523 facet normal -0.634394 0.77301 1.15672e-06 facet normal 0.772555 -0.634846 0.0113566 vertex -4.29641 5.7853 7.81019 facet normal -0.766032 -0.0754488 -0.63836 facet normal -0.0973393 0.995186 0.0113559 vertex 6.91995 1.06598 10.3435 vertex 5.71699 1.07374 21.335 vertex 5.6469 -4.13938 10.3435 vertex 5.71699 -1.07374 21.335 vertex -6.91995 1.06598 10.3435 vertex -1.07374 -5.71699 21.335 facet normal -0.920082 0.0906197 0.381101 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 navigate fluently in preview mode. * @todo Add a front-panel PCB Fireball/Fireball.kicad_prl | 75 .../precadsr-panel-PasteBottom.gbp | 15 .../precadsr_aux_Gerbers/precadsr-F_SilkS.gbr | 2066 .../precadsr_aux_Gerbers/precadsr-NPTH.drl | 4 .../PCB/precadsr_Gerbers/precadsr-F_SilkS.gbr | 1166 .../PCB/precadsr_Gerbers/precadsr-NPTH.drl | 4 812d609d12 More assembly notes 45c41b9873 More mounting hole 8.4mm no annular m2.5 Mounting Hole 6.5mm, no annular Mounting Hole 5.3mm, no annular, M5 mounting hole 4.5mm no annular mounting hole 8.4mm m8 Mounting Hardware, inside blind hole M1.6, height 1, Wuerth electronics 9774055951 (https://katalog.we-online.de/em/datasheet/9774055951.pdf), generated with kicad-footprint-generator Molex MicroClasp Wire-to-Board System, 55932-0510, with PCB trace layout Checkpoint in case you are using Eurorack height = 266 + tolerance; rail_depth = 27.4 + tolerance; extra_depth = 75 + tolerance; rail_depth = 27.4 + tolerance; rotate_vector_cos = 0.94; // 'x' of 20 degree rotation rotate_vector_sin = 0.34; // 'y' of rotation left_edge = -rotate_vector_sin * rail_depth; right_edge = height - v_margin; working_increment = working_height / 6; // generally-useful spacing amount for vertical columns of stuff col_middle = col_left + (15.6 + 1.5 + 7 + 8); // pot + led + switch? Col_right = width_mm - h_margin; working_height = height - v_margin; working_increment .

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