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A setscrew). (ShaftLength must be non-zero. RingMarkings = 10; knob_smoothness = 20; // How much horizontal space needed for left-hand and right-hand sub-panels right_panel_width = 12; // overkill; currently three 3.5mm jacks needing 8mm //calculated x value of exact middle of panel after deducting left/right sub-panels slider_center = (width_mm - left_panel_width - right_panel_width)/2 + left_panel_width; slider_bottom = v_margin+12; // 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 -8.07502 5.88782 facet normal 0.76932 0.631369 0.0975751 vertex -6.31675 6.4027 4.51216 facet normal 0.000000e+00 1.000000e+00 -0.000000e+00 0.000000e+00 vertex -9.426361e+01 1.053818e+02 1.055000e+01 vertex -9.426361e+01 1.053818e+02 3.455000e+01 facet normal 0.996728 -0.0398 -0.0703571 facet normal 0.243786 0.29705 0.923217 facet normal -5.284114e-01 -8.489884e-01 -3.401810e-04 vertex -1.010136e+02 9.269140e+01 2.550000e+00 facet normal -0.920074 0.090682 0.381103 vertex -10.1139 0 2.58057 vertex -0.388301 -10.1521 2.19603 vertex 3.87041 9.34401 2.58057 vertex -6.86157.

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