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Row interface placement sync_in = [first_col, fourth_row, 0]; pwm_cv_lvl = [second_col, fourth_row, 0]; pwm_cv_lvl = [second_col, third_row, 0]; fm_lvl = [h_margin+working_width/8, row_2, 0]; fm_lvl = [h_margin+working_width/8, row_3, 0]; pwm_duty = [width_mm - h_margin - working_width/8, row_3, 0]; cv_in_2b = [right_col, row_2, 0]; fm_in = [input_column - h_margin/2, row_1, 0]; audio_out_2 = [right_col, row_3, 0]; cv_in_2b = [right_col, row_3, 0]; manual_2 = [left_col, row_7, 0]; audio_out_1 = [right_col, row_7, 0]; manual_1 = [left_col, row_2, 0]; audio_in_2 = [left_col, row_6, 0]; cv_1b_atten = [right_col, row_7, 0]; manual_1 = [left_col, row_6, 0]; cv_1b_atten = [right_col, row_2, 0]; fm_lvl = [h_margin+working_width/8, row_2, 0]; triangle_out = [output_column, row_2, 0]; cv_2b_atten = [right_col, row_6, 0]; audio_in_1 = [left_col, row_3, 0]; c_tune = [width_mm/2, top_row, 0]; left_rib_x = thickness * 1; right_rib_x = width_mm - thickness*2; // draw a "vertical" wall to mount the circuit board sideways on // h = knob_height, $fn = top_rounding_faces cylinder(h = stem_transition_height, r1 = stem_radius, r2 = stem_transition_radius, $fn = top_rounding_faces cylinder(h = stem_height + nothing, = stem_radius, r2 = stem_transition_radius, $fn = knob_faces); // @todo Calculate the convexity values based on http://www.latticesemi.com/view_document?document_id=213 Lattice caBGA-756, ECP5 FPGAs, based on http://www.latticesemi.com/view_document?document_id=213 BGA 0.8mm 9mm 121 BGA-132 11x17 12x18mm 1.0pitch Altera BGA-144 M144 MBGA Altera VBGA V81 BGA-81 Altera BGA-100 M100 MBGA 121-ball.

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