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Other value will taper the knob. [mm] sphere_indents_center_distance = 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 8.33435 5.74921 facet normal -0.0818837 0.0813285 0.993318 vertex -5.18289 -4.10946 7.85151 facet normal -0.115745 0.000168718 -0.993279 facet normal -5.596008e-14 -1.000000e+00 3.874159e-14 facet normal 0.643689 -0.528266 0.553714 facet normal -4.566400e-001 7.828525e-001 4.226368e-001 vertex 3.459000e+000 -3.898465e+000 2.480400e+001 facet normal -0.0975142 0.989389 0.107702 facet normal 0.338909 0.18114 0.923217 vertex 8.81743 -1.78758 3.82299 vertex -3.44415 8.31492 3 facet normal 0.768477 0.63066 0.108216 facet normal 0.00743445 0.0992344 -0.995036 vertex 1.87509 -9.81814 0.0427034 vertex 2.0535 9.77267 0.0395017 facet normal -0.144952 -0.617515 0.773087 vertex 4.57918 -5.11681 7.04537 vertex 6.81829 0.589577 7.19149 vertex 0.463226 -6.71529 7.17947 vertex -4.57918 5.11681 7.04537 facet normal -9.832457e-01 -1.822821e-01 -1.015564e-03 vertex -1.044170e+02 9.739274e+01 1.656905e+01 facet normal 0.290244 -0.950506 0.110892 facet normal -1.372543e-01 3.822440e-04 9.905358e-01 facet normal 2.488520e-001 9.685416e-001 0.000000e+000 facet normal 0.288045 -0.957542 -0.0119981 facet normal -8.749968e-01 9.302894e-03 -4.840394e-01 facet normal -0.956924 0.29034 -9.5392e-07 vertex -6.92909 -2.87012 6.0001 vertex 6.92909 2.87012 6.0001 vertex 6.92909 -2.87011 6.0001 vertex 1.46317 -7.35588 6.0001 vertex -6.92909 -2.87011 6.0001 vertex -7.35588 -1.46317 6.0001 vertex -6.92909 -2.87011 6.0001 vertex -2.87012 6.92909 6.0001 vertex -4.16678 -6.23601 6.0001 vertex 6.23601 -4.16678 6.0001 vertex -2.87012 -6.92909 6.0001 vertex 2.87013 -6.92908 6.0001 vertex 6.23601 -4.16678 6.0001 vertex -6.23601 4.16677 6.0001 vertex -2.87012 -6.92909 6.0001 vertex 6.23601 -4.16678 6.0001 vertex -2.87012 -6.92909 6.0001 vertex -7.35588 1.46317 6.0001 vertex 6.23601 4.16677 6.0001 vertex 2.87013 -6.92908 6.0001 vertex 6.92909 2.87011 6.0001 vertex 7.49999 0 6.0001 vertex 6.23601 4.16677 6.0001 vertex 6.23601 -4.16678 6.0001 vertex 6.92908 2.87013 6.0001 vertex 7.35588 -1.46317 6.0001 vertex -4.16677 6.23601 6.0001 vertex 0 2.5 6.5 facet normal -9.901828e-01 1.397735e-01 1.144797e-03 vertex -1.045318e+02 9.970655e+01 2.655000e+01 facet normal 0.0348062 0.996914 -0.0703582 vertex -7.9145 5.54857 3.25404 vertex -7.23142 -4.9303 12.3523 facet normal 0.16633 0.219559 0.961316 facet normal -7.154984e-15 -1.000000e+00 -2.751194e-14 facet normal 0 0.993572 0.113203 facet normal -1.925631e-001 9.812846e-001 0.000000e+000 vertex -6.313201e+000 3.108942e+000 9.983999e+000 vertex 4.695738e+000 5.269281e+000 9.983999e+000 vertex 3.614395e+000 -4.406236e+000 2.496000e+001 vertex 3.614395e+000 -4.406236e+000 9.983999e+000 vertex -6.577143e-001 5.585604e+000 2.496000e+001 vertex 8.315394e-001 -5.637004e+000 2.496000e+001 vertex -3.893586e+000 4.057701e+000 2.496000e+001 vertex -5.338290e+000 -1.868363e+000 2.496000e+001 vertex 5.341154e+000 3.061792e+000 2.496000e+001 vertex -5.130974e+000 -2.388475e+000 9.983999e+000 vertex -4.056728e+000 5.738834e+000 2.496000e+001 vertex -1.481438e+000 5.423960e+000 9.983999e+000 vertex -2.516711e+000 6.561480e+000 2.496000e+001 vertex 6.382745e+000 3.056598e+000 1.747200e+001 facet normal 0.243764 0.188081 0.951422 facet normal 0.388083 -0.237824 0.890411.

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