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Create a D-shaped shafthole cross-section. 0 to keep it round. [mm] shafthole_cutoff_arc_height = 0.35; /* [Stem (optional)] */ // Four hole threshold (HP) four_hole_threshold = 10; label_font = 6; //knob_radius saw_out = [third_col, fourth_row, 0]; //Fifth row interface placement triangle_out = [output_column, row_2, 0]; fm_in = [h_margin+working_width/8, row_3, 0]; cv_in_2b = [right_col, row_1, 0]; fm_in = [h_margin+working_width/8, row_2, 0]; fm_in = [h_margin+working_width/8, row_3, 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); 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); 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 3.82299 vertex -1.75581 -8.82707 0 vertex -2.3097 0.956708 6.7 vertex -2.3097 -0.956708 6.5 vertex 2.5 0 6.7 vertex 0.487725 -2.45196 6.5 vertex 2.5 0 6.5 vertex 1.76777 -1.76777 6.5 facet normal 0.113987 -0.0621138 0.991539 facet normal 3.508229e-001 6.139405e-001 7.071071e-001 facet normal -0.366302 0.925178 0.0993389 vertex -2.47214 7.60845 20 facet normal -1.284286e-001 -2.247502e-001 9.659159e-001 facet normal -0.115684 0.000419123 0.993286 vertex -6.91658 -0.991719 7.89187 facet normal 0.634386 0.773016 0 vertex -3.425 0 6.59 facet normal -0.76572 0.435817 0.473008 vertex -6.50844 -0.573447 7.52902 facet normal 0.000349206 0.11558 0.993298 vertex 0.762348 -4.94225 21.7809 facet normal -0.00384788 0.367707 0.929934 facet normal 0.828719 0.0816185 0.553682 facet normal -9.991312e-01 4.167355e-02 2.542647e-04 vertex -9.019230e+01 9.900145e+01 4.255000e+01 facet normal -0.952732 -0.286108 0.102199 facet normal -0.2628 -0.392055 0.881606 facet normal 0.172865 -0.0218118 0.984704 vertex -4.97515 5.38424 6.90036 facet normal -6.353877e-001 7.721933e-001 0.000000e+000 vertex -5.422409e+000 -1.601256e+000 2.496000e+001 vertex -2.525431e+000 5.022715e+000 2.496000e+001 vertex 1.380968e+000 -5.529187e+000 1.747200e+001 facet normal -0.0906197 0.920082 0.381101 facet normal -0.991507 0.0942884 0.0895734 facet normal 0.286114 -0.95273 0.102199 facet normal 0.920082 -0.0906197 0.381101 vertex 2.27473 -9.67202 2.94279 vertex -8.86128 3.99693 3.26879 vertex -9.20539 3.813 2.94279 vertex -9.09213 -3.43962 3.26879 facet normal 9.734658e-001 2.288326e-001 -0.000000e+000 vertex 1.015835e+000 5.537292e+000 1.747200e+001 facet normal 4.633939e-01 -6.112069e-03 8.861313e-01 vertex -1.086215e+02 9.665134e+01 9.207041e+00 vertex -1.083882e+02 9.665134e+01 9.085053e+00 facet normal 4.463730e-08 1.000000e+00 -0.000000e+00 0.000000e+00 1.000000e+00 0.000000e+00 facet normal 0.555569 0.83147 0 facet normal 0.262751 -0.491602 0.830234 facet normal 0.801132 0.594337 -0.07036 vertex -9.44522 -2.75051 1.4766 vertex -8.34127 -2.57294 12.5464 facet normal -2.137221e-001 3.645507e-001 9.063253e-001 vertex -4.386413e+000 3.439340e+000 2.494118e+001 facet normal -0.296992 0.135029 0.945285 facet normal -0.172853 -0.0217758 0.984707 facet normal 0.302869 -0.92061 0.246468 facet normal -0.0980344 -0.988479 0.115322 facet normal 0.703595 0.707109 0.0703597 vertex -3.60287 9.4298 0.0491304 facet normal 0.124395 -0.48503 0.865605 facet normal 0.112087 0.551317 -0.826732 vertex -1.11009 -2.67998 18.9335 facet normal -0.6852 -0.343403 0.64232.

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