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Contributor. You must inform recipients of the stem. [mm] stem_height = 10; knob_radius_bottom = 14; // [1:1:84] /* [Holes] */ hole_dist_top = 2.5; // margins from edges h_margin = thickness*2; v_margin = hole_dist_top*2 + thickness; width_mm = hp_mm(h); 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); 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 -7.34398 6.86102 facet normal 0.478923 -0.594346 0.646054 facet normal 9.800099e-01 6.837851e-03 1.988314e-01 facet normal -0.0620604 -0.0778255 0.995034 vertex 0.505698 7.98874 19.9508 facet normal -0.956715 -0.0766184 0.280761 facet normal -0.353627 0.43089 0.83023 vertex 6.85323 6.50317 3.54602 facet normal -0.118608 0.286346 0.950757 vertex 4.06086 -0.665604 18.8084 facet normal 0.0169529 -0.828691 0.559449 vertex -0.821781 -7.28282 7.24568 facet normal -0.036199 0.0923587 0.995068 facet normal 6.244133e-002 -1.055689e-001 9.924496e-001 vertex 3.861202e-002 -4.960609e+000 2.496000e+001 facet normal -0.243764 0.297072 0.923216 facet normal -0.643664 0.528347 0.553666 facet normal -0.0938358 0.952717 0.289008 vertex -8.79978 -1.75038 4.79464 facet normal -0.479367 -0.871971 0.0993685 vertex -4.25779 -9.04827 0 facet normal 7.741848e-01 1.163684e-03 -6.329586e-01 vertex -1.053126e+02 9.665134e+01 1.053895e+01 facet normal 0.241727 -0.796857 0.553703 facet normal -0.634335 0.773058 0 facet normal 0.472795 0.88053 0.0336363 facet normal -0 -0.956942 -0.29028 vertex -0.4 3.28125 18.4724 vertex 2.58025 1.95159 18.574 vertex 2.37646 -2.37646 18.4724 vertex -3.07861 1.31556 18.4809 vertex -3.10499 1.28613 18.4724 facet normal -0.0978932 0.995197 0 facet normal 9.880752e-01 7.937486e-03 1.537671e-01 vertex -1.093606e+02 9.725134e+01 1.026077e+01 facet normal -0.0961675 -0.947172 0.30597 facet normal 9.862182e-01 -1.897927e-14 -1.654497e-01 facet normal 0.876745 -0.468624 0.108209 vertex -1.13596 5.71086 21.335 facet normal 0.76848 -0.630655 0.108222 facet normal 0.0819011 0.0819033 -0.993269 facet normal 0.0800988 -0.0192491 0.996601 facet normal -0.0915932 -0.0112271 0.995733 facet normal 0.471404 -0.875976 0.102197 facet normal 0.0973514 0.989354 0.108175 facet normal 7.409568e-001 3.466066e-003 6.715438e-001 facet normal -0 -0.995185 -0.0980172 vertex -0.4 3.15337 18.6638 vertex 1.28613 3.10499 18.4724 facet normal -0.964172 -0.255779 0.0703601 facet normal 9.720735e-01 2.346750e-01 -9.051373e-04 vertex -9.044218e+01 9.701936e+01 1.608622e+01 facet normal -7.011925e-01 -3.483989e-03 7.129634e-01 vertex -1.047458e+02 9.695134e+01 9.438131e+00 vertex -1.046955e+02 9.665134e+01 9.489068e+00 facet normal -8.243808e-15 -1.000000e+00 5.722349e-14 vertex -1.076581e+02 9.725134e+01 1.149165e+01 facet normal -0.0127267 0.705404 0.708692 vertex -7.29119 0.781299 7.20554 facet normal -1.397736e-01 -9.901834e-01 3.531812e-04 facet normal -0.471388 -0.881926 6.69388e-06.

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