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= 12*3 + tolerance*2; //three knobs plus space between them right_panel_width = width_mm - thickness*2; // draw panel, subtract holes 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); 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 -5.48271 21.8439 facet normal -0.0981585 -0.995171 0 vertex -2.42705 -1.76336 9.999 vertex -2.42705 1.76336 0 vertex 1.3184 3.15913 6.59 facet normal 4.929500e-001 8.620432e-001 1.178210e-001 facet normal -0.884724 0.268377 0.381099 facet normal 0.900717 0.422905 0.0992962 facet normal 1.245683e-13 -1.000000e+00 -2.027603e-13 vertex -1.045961e+02 9.725134e+01 1.214390e+01 vertex -1.047306e+02 9.725134e+01 1.230347e+01 facet normal -0.192839 0.747986 0.635083 facet normal -0.644981 -0.00905415 0.764145 facet normal -0.0820366 -0.0818217 -0.993265 vertex 3.69322 -4.02975 21.8414 facet normal -0.796849 -0.241718 0.553718 vertex 9.77239 -1.94385 2.94279 vertex 5.8029 8.06528 2.94279 facet normal -0.0366128 0.15247 0.98763 vertex 5.13783 -0.11686 18.8084 facet normal -0.188053 0.243743 0.951433 vertex -0.221399 -7.2243 6.88859 facet normal -3.036929e-01 9.527700e-01 0.000000e+00 vertex -9.229838e+01 1.039874e+02 3.455000e+01 facet normal -0.877362 -0.466839 0.110891 facet normal -4.395876e-001 7.536196e-001 4.886923e-001 facet normal -0.956432 -0.291712 -0.0119451 vertex 2.84428 0.565762.

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