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Full dev board (in some cases) Arduino + DAC https://www.youtube.com/watch?v=t3kUPjdiq0o for explainer https://drive.google.com/drive/folders/156nn9rClRLJplS4M46s56-Pibi86Z-Kp for schematics and .ino file uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on the cylindrical edge of a circle. Used only where users want round outlines by specifying ≥30 faces. Quality == "preview") ? 6 : quality == "final rendering") ? 0.1 : quality == "fast preview") ? 12 : 12; // [1:1:84] square_out = [output_column, row_1, 0]; triangle_out = [third_col, fifth_row, 0]; pwm_duty = [width_mm - h_margin - working_width/8, row_2, 0]; triangle_out = [output_column, row_1, 0]; saw_out = [output_column, row_1, 0]; square_out = [third_col, fourth_row, 0]; triangle_out = [width_mm-h_margin-working_width/4, row_1, 0]; triangle_out = [third_col, third_row, 0]; //Fourth row interface placement f_tune = [h_margin+working_width/8, row_3, 0]; cv_in_2b = [right_col, row_1, 0]; square_out = [width_mm-h_margin, row_1, 0]; triangle_out = [third_col, fifth_row, 0]; //left_rib_x = thickness + 6 + tolerance; rail_depth = 27.4 + tolerance; // rib + half a jack col_right = width_mm - 9.5/2 - right_rib_thickness - tolerance; // left_rib_x = thickness * 1.2; right_rib_x = width_mm - hole_dist_side - thickness; // column from edge plus hole radius // elevated sockets to fit in glide controls 53c46eece113c24bce671b9108c3f713b2229189 Final-ish tweaks More mounting hole.

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