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Explanation about PWM smoothing; essentially a 4-stage RC network but with buffering between (some) stages. Needs a _big_ knob, these are for steps only row_5 = working_increment*4 + row_1; row_3 = row_2 + vertical_space/7; row_7 = row_6 + vertical_space/7; row_6 = row_5 + vertical_space/7; row_5 = row_4 + vertical_space/7; row_5 = row_4 + vertical_space/7; cv_in_1a = [left_col, row_7, 0]; manual_1 = [left_col, row_3, 0]; c_tune = [width_mm/2, top_row, 0]; left_rib_x = thickness + 6 + tolerance; extra_depth = 75 + tolerance; // rib + half a jack col_right = width_mm - thickness*2; // draw panel, subtract holes union() { cube([board_width, board_height, thickness]); cylinder(thickness+standoff_height, r=standoff_radius, $fn=360); cube([cutout_width, cutout_height, thickness+3]); cylinder(h=thickness+standoff_height+3, r=hole_radius, $fn=360); vertex 0 -10.1904 0 2.19603 vertex -5.96308 8.22545 2.19603 facet normal -0.223046 -0.417288 0.880977 vertex 7.69994 -3.18942 5.74921 facet normal -2.554371e-001 -4.462929e-001 8.576564e-001 vertex 4.750911e-002 -6.030936e+000 2.492316e+001 facet normal 0.247514 0.963781 0.0993082 facet normal -0.938724 -0.284757 0.194192 facet normal -1.064903e-14 -1.000000e+00 -1.490231e-14 facet normal 0.63062 0.768512 0.108202 facet normal -0.106825 0.137635 0.984705 facet normal -0.36771 -0.111577 0.923223 vertex -8.32455 -3.41238.

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