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5-roll, I think this is the diameter of the knob. [mm] sphere_indents_center_distance = 12; label_font_size = 5; height_of_cylinder_indentations = 12; // [1:1:84] left_rib_x = 0; right_rib_x = width_mm - thickness*2; 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 -6.2584 7.81508 facet normal 7.990207e-01 -6.013036e-01 0.000000e+00 vertex -9.578366e+01 9.188900e+01 2.655000e+01 facet normal -4.064223e-001 -7.112379e-001 5.735517e-001 vertex 3.424517e+000 3.845810e+000 2.480400e+001 facet normal 0.815355 -0.435833 0.38111 vertex -9.04239 4.11794 2.94279 facet normal 0.877365 -0.466834 0.110891 facet normal 0.0074373 -0.0992161 -0.995038 vertex -7.28611 6.84211 0.0491127 facet normal -9.969427e-01 3.056936e-03 7.807577e-02 vertex -1.042487e+02 9.725134e+01 1.064568e+01 vertex -1.042471e+02 9.695134e+01 1.067734e+01 facet normal 3.535890e-01 9.354009e-01 7.046050e-05 vertex -1.001138e+02 1.055560e+02 4.255000e+01 facet normal -1.308752e-001 2.233331e-001 9.659162e-001 vertex 4.454562e+000 -3.567837e+000 2.495526e+001 facet normal -0.118608 -0.286346 0.950757 facet normal -0.137479 -0.572634 0.808202 vertex 3.41722 1.35267 19.1916 facet normal -0.703995 -0.703995 0.0937203 facet normal 2.835344e-001 4.986055e-001 8.191463e-001 vertex -7.656270e-001 -5.556008e+000 2.491820e+001 facet normal -0.0977622 0.989292 0.108366 facet normal -0.500005 0.866022 0 vertex -1.21798 6.38487 20 vertex 1.21798 -6.38487 19.9 facet normal -0.828672 0.0815232 0.553766 facet normal -1.379493e-13 -1.000000e+00 -3.723660e-13 facet normal -0.584885 0.80502 0.0992537 facet normal 0.271031 0.654318 0.705982 facet normal -0.012671 0.705364 0.708732 vertex 7.28282 -0.821781 7.24568 facet normal 0.5 0.866025 -0 facet normal 0.499906 -0.86608 0.000116599 facet normal -9.969315e-01 -5.655619e-03 7.807489e-02 facet normal -0.836804 -0.462418 0.293136 facet normal 0.3461 -0.295601 0.890413 facet normal -0.42307 -0.690389 0.586835 vertex 2.36512 1.4028 19.9 facet normal 9.613948e-001 4.721924e-003 2.751321e-001 facet normal -0.268375 -0.884724 0.381101 vertex -10.0771 -0.373379 2.58057 vertex -9.92995 -0.344109 2.94279 vertex -8.40938 -5.61897 2.58057 facet normal -0.370051 0.603866 0.70598 facet normal 0.0729619 0.338843 0.938009 vertex 7.32519 -0.289273 6.90036 vertex 5.32576 4.95759 6.89409 vertex -5.38424 -4.97515 6.90036 vertex -7.39065 0.0879059 6.86646 facet normal 9.700120e-001 3.838306e-003 2.430267e-001 facet normal -0.957361 0.114987 0.265023 facet normal -0.33413 -0.625114 0.7054 vertex -5.4146 8.10352 3.26879 facet normal -0.0948182 0.029279 0.995064 vertex 7.75351 -1.99076 19.95 facet normal 0.94716 0.0961108 0.306023 vertex -6.27065 0 7.71007 facet normal -5.080899e-01 8.613040e-01 -1.141112e-04 facet normal 9.901787e-01 1.398071e-01 -2.506079e-04 facet normal 2.806318e-02 -9.996061e-01 3.536535e-04 facet normal -0.680879 0.725636 0.0992804 facet normal -0.0243197 -0.30898 0.950758 facet normal -0.988483 0.0979878 0.115323 vertex -4.6286 0 21.7443 facet normal -0.875977 -0.471404 0.102188 facet normal 0.0817537 -0.0820584 -0.993269 facet normal -8.706134e-01 -4.919677e-01 3.074473e-04 facet normal -4.743276e-01 0.000000e+00 8.803484e-01 vertex -1.050340e+02 9.715134e+01 9.208996e+00 facet normal -3.176351e-001 -1.414406e-003 9.482120e-001 vertex -3.530305e+000 2.787774e+000 2.495526e+001 facet normal -2.665685e-01 5.249985e-03 9.638017e-01 vertex -1.081512e+02 9.665134e+01 1.136574e+01.

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