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6.2529 -4.17805 6.0001 facet normal 0.288281 0.956957 0.0335834 vertex -5.38893 -1.02637 21.833 vertex -1.05741 -5.51437 21.6407 facet normal 2.647867e-001 -9.643070e-001 0.000000e+000 vertex 2.063766e+000 -6.818795e+000 2.496000e+001 vertex 2.723071e+000 -6.583945e+000 2.496000e+001 vertex -6.551333e+000 -2.663729e+000 2.496000e+001 vertex 2.063766e+000 -6.818795e+000 9.983999e+000 vertex 1.561409e+000 5.411416e+000 2.496000e+001 vertex 2.434567e+000 -5.153887e+000 1.747200e+001 facet normal -2.880153e-004 -5.040268e-004 -9.999998e-001 ## Documentation: ### 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 software distributed through that system in reliance on consistent application of that nut to match the top knob working_width = width_mm - h_margin; cv_in = [input_column, bottom_row, 0]; c_tune = [width_mm/2 + h_margin, top_row, 0]; left_rib_x = thickness + 6 + 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 - 25; // build up seven rows; middle one unused row_1 = bottom_row + v_margin + 12; //knob_radius top_row = height - v_margin - title_font_size*1.5; working_height = height - v_margin; working_increment = (working_height-v_margin+thickness) / (9); // generally-useful spacing amount for vertical columns of stuff col_left = thickness * 1.2; right_rib_x = width_mm - thickness*2.5 - tolerance*6; out_row_8 = working_increment*7 + out_row_1; out_row_5 = working_increment*4 + out_row_1; out_row_7 = working_increment*6 + out_row_1; //special-case the knob main shape. [mm.

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