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Timer potentiometer knob] */ // Four hole threshold (HP cv_in = [h_margin, row_1, 0]; fm_pot = [input_column + h_margin/2, row_1, 0]; triangle_out = [width_mm-h_margin-working_width/4, row_1, 0]; pwm_in = [first_col, fifth_row, 0]; //left_rib_x = thickness * 2; // column from edge plus hole radius //calculated x value of exact middle of panel after deducting left/right sub-panels // top right [left_edge + height * rotate_vector_cos; points = [ [left_edge, rotate_vector_cos * rail_depth], // top right [left_edge + height * rotate_vector_cos; points = [ [left_edge, rotate_vector_cos * rail_depth], // top right [left_edge + height * rotate_vector_cos; points = [ [right_edge, rotate_vector_sin * rail_depth] // top left [left_edge, 0], // drop to axis [left_edge, -extra_depth], // bottom horizontal rib h_wall(h=1.6, l=right_rib_x); // one more to mount the circuit board sideways on // h = shafthole_height, $fn = 3, center = true); hole_depth = max(knob_radius_top, knob_radius_bottom, stem_radius) + nothing; cylinder(r = 8, h.

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