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30; //special-case the knob (in mm). (ShaftLength must be non-zero. ShaftDiameter = 10; knob_radius_bottom = 14; // [1:1:84] // margins from edges h_margin = hole_dist_side + thickness; v_margin = hole_dist_top*5; width_mm = hp_mm(h); difference() { difference() { union() { cube([board_width, board_height, thickness]); cylinder(thickness+standoff_height, r=standoff_radius, $fn=360); cylinder(h=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 -9.74602 3.26879 facet normal 8.566012e-01 5.159790e-01 1.874556e-04 vertex -1.036465e+02 1.024397e+02 4.255000e+01 facet normal -4.840226e-001 8.306738e-001 2.751421e-001 facet normal 0.0761286 0.0624745 0.995139 vertex 2.87789 -6.94785 6.0001 facet normal -0.491592 -0.262765 0.830236 facet normal 0.952376 0.288901 0.0975479 facet normal 0.634394 -0.77301 1.15672e-06 facet normal 0.24742 -0.963803 0.0993384 facet normal -0.119235 0.101837 0.98763 vertex 4.51398 -0.223703 18.7299 facet normal -0.188081 -0.291196 0.937993 facet normal 0.488315 0.595017 -0.63836 facet normal -0.081619 0.828696 0.553716 vertex.

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