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3266Y Potentiometer, horizontal, Bourns 3314S, http://www.bourns.com/docs/Product-Datasheets/3314.pdf Potentiometer vertical Bourns 3224X Potentiometer, horizontal, Bourns 3299X, https://www.bourns.com/pdfs/3299.pdf Potentiometer horizontal Bourns 3005 Potentiometer, horizontal, ACP CA9-H3,8, http://www.acptechnologies.com/wp-content/uploads/2017/05/02-ACP-CA9-CE9.pdf Potentiometer vertical hole ACP CA14-VSMD Potentiometer, horizontal, Omeg PC16BU, http://www.omeg.co.uk/pc6bubrc.htm Potentiometer horizontal Bourns 3299Z Potentiometer, vertical, shaft hole, allowing to create cutouts around the outer circumference of the indenting spheres. ≥30 means "round, using current quality setting". // How much horizontal space needed for left-hand and right-hand sub-panels left_panel_width = 16.5+16.5+10.5; //two knob, one jack, plus space between them right_panel_width = width_mm - h_margin; cv_in = [h_margin, row_1, 0]; pwm_in = [input_column - h_margin/2, row_1, 0]; fm_pot = [input_column - h_margin/2, row_1, 0]; audio_out_2 = [right_col, row_7, 0]; audio_out_1 = [right_col, row_2, 0]; square_out = [output_column, row_2, 0]; audio_in_2 = [left_col, row_7, 0]; cv_in_1b = [right_col, row_3, 0]; pwm_duty = [input_column, bottom_row, 0]; pwm_pot = [input_column - h_margin/2, row_1, 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 * rotate_vector_cos; points = [ [right_edge, rotate_vector_sin * height], // top left [left_edge, 0], // drop to axis [left_edge, -extra_depth], // bottom horizontal rib // middle horizontal rib // one more vertical to mount the circuit board to, dead center v_wall(h=4, l=top_row-rail_clearance*2-thickness-15); // PCB holder pcb_holder(h=10, l=top_row-rail_clearance*2-15-thickness, th=1.15, wall_thickness=1); // lower h-rib reinforcer ## Photos [to be added] ## 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 apply smooth = 20; shaft_radius = 3.25; shaft_height = 13; shaft_smoothness = 20; .

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