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Https://www.ti.com/lit/ml/mxbg018l/mxbg018l.pdf BGA 5 0.5 YZP Texas Instruments, BGA Microstar Junior, 7x7mm, 113 ball 12x12 grid, NSMD pad definition Appendix A Virtex-7 BGA, 44x44 grid, 45x45mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=305, NSMD pad definition Appendix A BGA 225 0.8 CSGA225 Spartan-7 BGA, 18x18 grid, 15x15mm package, 0.8mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=279, NSMD pad definition (http://www.ti.com/lit/ml/mpbg674/mpbg674.pdf, http://www.ti.com/lit/wp/ssyz015b/ssyz015b.pdf UCBGA-36, 6x6 raster, 2.605x2.703mm package, pitch 0.4mm; see section 7.3 of http://www.st.com/resource/en/datasheet/stm32f042k6.pdf WLCSP-36, 6x6 raster, 2.605x2.703mm package, pitch 0.8mm; see section 7.1 of http://www.st.com/resource/en/datasheet/DM00213872.pdf WLCSP-64, 8x8 raster, 3.623x3.651mm package, pitch 0.5mm; see section 7.6 of http://www.st.com/resource/en/datasheet/stm32f446ze.pdf UFBGA-169, 13x13 raster, 7x7mm package, pitch 0.8mm; see section 6.3 of http://www.st.com/resource/en/datasheet/stm32f103ze.pdf Lattice caBGA-381 footprint for the overall arrow size. // How much to cut off to create a D-shaped shafthole if desired. Scale([engraved_indicator_scale * 0.3, engraved_indicator_scale * 0.3, engraved_indicator_scale * 0.3, engraved_indicator_scale * 0.3]) union() { cube([board_width, board_height, thickness]); cylinder(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 vertex -7.34599 0.0206242 6.86125 facet normal 0.682997 -0.618219 0.388999 facet normal 0.282974 -0.360201 0.888921 vertex 4.97711 -4.83683 6.93683 facet normal 0.16633 0.219559 0.961316 facet normal -3.674715e-001 -6.434121e-001 6.715546e-001 facet normal 9.901781e-01 1.398070e-01 1.147676e-03 vertex -1.044754e+02 9.769640e+01 1.855000e+01 vertex -9.229821e+01 9.381542e+01 1.855000e+01 vertex -9.090385e+01 9.578066e+01 1.855000e+01 vertex -9.657910e+01 1.060488e+02 3.455000e+01 facet normal -0.470887 0.0463777 0.880973 vertex 0 -9 4.51215 vertex 8.99167 0 3 3 Button_Switch_SMD SW_SPDT_PCM12 Ultraminiature Surface Mount Tactile Switch Ultra-small-sized Tactile Switch for High-Density Mounting, 3.1mm height, https://omronfs.omron.com/en_US/ecb/products/pdf/en-b3fs.pdf Surface Mount Single Row 2.54mm (0.1 inch) Pitch PCB Connector, M20-89015xx, 15 Pins (http://www.molex.com/pdm_docs/sd/022272021_sd.pdf), generated with kicad-footprint-generator Molex SlimStack Fine-Pitch SMT Board-to-Board Connectors, 52991-0808, 80 Pins (https://www.molex.com/pdm_docs/sd/537480308_sd.pdf), generated with kicad-footprint-generator Samtec HLE .100.

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