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- 3x3x0.85 mm Body [DFN] (see Microchip Packaging Specification 00000049BS.pdf UQFN, 16 Pin (https://www.ti.com/lit/ds/symlink/ts5v330.pdf#page=28 QFN, 20 Pin (http://ww1.microchip.com/downloads/en/PackagingSpec/00000049BQ.pdf#page=274), generated with kicad-footprint-generator ipc_noLead_generator.py XDFN4 footprint (as found on the larger board underneath the smaller board. // margins from edges h_margin = thickness*2; v_margin = hole_dist_top*2; 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); cube([cutout_width, cutout_height, thickness+3]); cylinder(h=thickness+standoff_height+3, r=hole_radius, $fn=360); vertex 0 9.46879 3.54602 facet normal 0.995184 -0.0980262 9.21874e-06 facet normal 9.913098e-001 1.315476e-001 -0.000000e+000 vertex 4.695738e+000 5.269281e+000 9.983999e+000 vertex 3.614395e+000 -4.406236e+000 1.747200e+001 facet normal -0.996728 0.0397744 0.0703605 facet normal 7.640483e-01 -6.451590e-01 -3.270579e-04 vertex -1.030077e+02 9.441667e+01 1.055000e+01 facet normal -0.195101 -0.980783 -5.85608e-06 facet normal 4.334976e-001 -7.427344e-001 5.103190e-001 vertex -4.068081e+000 2.300897e+000 2.484593e+001 facet normal 0.288937 -0.749604 0.59549 facet normal -0.695475 -0.464692 -0.548065 facet normal 9.730724e-01 1.497671e-02 -2.300124e-01 vertex -9.047013e+01 1.008513e+02 1.180821e+01 facet normal -0.00725825 0.0991098 0.99505 facet normal 0.0369052 0.124337 0.991554 facet normal -1.371665e-14 -1.000000e+00 3.935526e-15 facet normal 4.064187e-001 7.112334e-001 5.735598e-001 facet normal -0.916108 -0.277897 0.288995 facet normal 0.608831 0.184688 0.771502 vertex -3.27641 -7.90994 5.56266 facet normal -0.915289 -0.396604 -0.0703585 vertex 2.10997 8.94883 7.89406 facet normal 0.491817 0.403621 0.771496 vertex -7.11876 4.7566 5.56266 facet normal 0.528276 -0.575172 0.624582 facet normal -0.0998673 -0.114117 0.988435 facet normal -0.768557 0.63056 0.108238 facet normal -0.80732 -0.0635162 0.586685 facet normal 0.469149 -0.877713 0.0975674 facet normal -0.225392 -0.184975 0.956547 facet normal 4.942508e-001 8.649391e-001 8.715790e-002 vertex -2.473161e+000 -4.406061e+000 2.470218e+001 facet normal -1.600428e-001 2.743736e-001 9.482117e-001 vertex 2.123724e+000 -3.645529e+000 2.494118e+001 facet normal 0.00743567 -0.0992448 -0.995035 vertex -9.98521 0.172147 0.0395563 facet normal -0.000129735 -0.113445 0.993544 vertex 0.189947 7.16046 6.89315 facet normal -7.642745e-001 -6.448911e-001 0.000000e+000 vertex -9.918118e-002 5.624815e+000 9.983999e+000 vertex -5.709703e+000 -4.193455e+000 2.496000e+001 vertex 5.326315e+000 1.930454e+000 1.747200e+001 facet normal 0.682453 0.560081 0.469646 facet normal -0.166294 -0.21962 0.961308 vertex -5.04394 5.04394 6.87796 vertex 5.00497 -5.09136 6.87866 facet normal -9.682993e-01 -2.497929e-01 -2.924889e-04 facet normal -0.114153 -0.990969 0.0703596 facet normal -4.015069e-001 -7.030049e-001 5.870062e-001 facet normal 4.496486e-001 7.868858e-001 4.226426e-001 facet normal 5.917222e-02 -3.775003e-03 9.982407e-01 vertex -1.072673e+02 9.695134e+01 8.833620e+00 facet normal 0.768481 -0.630653 0.10823 facet normal -0.946371 0.307492 0.099151 facet normal -0.815358 -0.388731 0.429045 facet normal 0.124364 0.485049 0.865599 facet normal -0.290283 -0.956941 -0 facet normal -0.547909 0.449652 0.705414 facet normal -0.29707 -0.243766 0.923216 vertex -8.83032 -1.72277 3.82299 facet normal 0.767777 0.634425 0.0895734 facet normal 9.964629e-01 -8.403365e-02 0.000000e+00 vertex -9.976002e+01 1.056904e+02 3.455000e+01 facet normal 0.184975 -0.225392 0.956547 vertex -4.48624 6.71414 5.88782 facet normal -0.993093 -0.0624835 0.0993093 facet normal.

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