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Module, 19.9x23.6x2.65mm, https://www.quectel.com/UploadImage/Downlad/M95_Hardware_Design_V1.3.pdf Quad-Band GSM/GPRS module, 24x24x3mm, http://simcom.ee/documents/SIM900/SIM900_Hardware%20Design_V2.05.pdf Telit xL865 familly footprint, http://www.telit.com/fileadmin/user_upload/products/Downloads/3G/Telit_UL865_Hardware_User_Guide_r8.pdf ublox Sara GSM/HSPA modem, https://www.u-blox.com/sites/default/files/SARA-G3-U2_SysIntegrManual_%28UBX-13000995%29.pdf, pag.162 ublox SARA-G3 SARA-U2 GSM HSPA Footprint for Mini-Circuits case TTT167 (Mini-Circuits_TTT167_LandPatternPL-079) following land pattern PL-079, including GND vias (https://ww2.minicircuits.com/pcb/98-pl079.pdf Footprint for Mini-Circuits case TTT167 (Mini-Circuits_TTT167_LandPatternPL-079) following land pattern PL-035, including GND-vias (https://ww2.minicircuits.com/pcb/98-pl052.pdf Footprint for Mini-Circuits case HF1139 (https://ww2.minicircuits.com/case_style/HF1139.pdf Footprint for Mini-Circuits case QQQ130 (https://ww2.minicircuits.com/case_style/QQQ130.pdf) following land pattern PL-176, including GND vias (https://www.minicircuits.com/pcb/98-pl176.pdf Footprint for Mini-Circuits case QQQ130 (https://ww2.minicircuits.com/case_style/QQQ130.pdf Footprint for Mini-Circuits cas HZ1198 (https://ww2.minicircuits.com/case_style/HZ1198.pdf) following land pattern PL-176, including GND vias (https://ww2.minicircuits.com/pcb/98-pl012.pdf Mini-Circuits top-hat case DB1627 (https://ww2.minicircuits.com/case_style/DB1627.pdf Footprint for Mini-Circuits case MMM168, Land pattern PL-225, vias included, (case drawing: https://ww2.minicircuits.com/case_style/MMM168.pdf, land pattern PL-176, including GND vias (https://www.minicircuits.com/pcb/98-pl176.pdf Footprint for Mini-Circuits case HF1139 (https://ww2.minicircuits.com/case_style/HF1139.pdf) following land pattern PL-035, including GND-vias (https://www.minicircuits.com/pcb/98-pl258.pdf Footprint for Mini-Circuits case BK377 (https://ww2.minicircuits.com/case_style/BK276.pdf Footprint for mini circuit case CD542, Land pattern PL-094, pads 5 and 6); middle of panel after deducting left/right sub-panels // top left [left_edge, 0], // drop to axis [left_edge, -extra_depth], // top edge smoothing // thanks to http://www.iheartrobotics.com/ for the sake of code complexity. Odd values are -=1 difference() { difference() { 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); 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 -9.96384 2.94279 facet normal 0.090613 -0.920058 0.38116 facet normal 0.114147 0.100183 0.9884 facet normal 0.343403 0.6852 0.64232 facet normal -0.137484 0.57263 0.808204 facet normal -1.165816e-14 -1.000000e+00 6.113595e-15 facet normal 0.0464241 0.0868538 0.995139 vertex -7.51042 -0.100274 6.0001 facet normal 0.400414 0.779905 0.481058 vertex -4.69689 -4.43444 7.32632 facet normal -4.816824e-001 -8.419764e-001 2.430180e-001 facet normal -9.502703e-01 -3.114264e-01 0.000000e+00 facet normal -2.856184e-001 -4.974123e-001 8.191478e-001 vertex 4.350363e+000 3.396974e+000 2.488700e+001 facet normal -0.95694 -0.290287 0 vertex -5.96308 -8.22545 2.19603 vertex 8.40938 -5.61897 2.58057 vertex 5.28808 -8.58625 2.58057 vertex -1.97312 9.91954 2.58057 facet normal 0.264256 0.161947 0.950759 facet normal 0.0980159 -0.995185 0 facet normal -0.422844 -0.331516 0.843386 facet normal 0.989339 0.0974657 0.108209 facet normal 4.064198e-001 7.112355e-001 5.735565e-001 facet normal -0.538537 0.459965 0.705981 vertex 6.1206 -1.7206 19.8418 facet normal -3.987226e-16 -7.910530e-01 6.117476e-01 facet normal -9.085862e-01 4.176973e-01 2.038530e-04 vertex -9.093526e+01 1.020864e+02 4.255000e+01 facet normal -0.956943 0.290276 0 facet normal 0.582726 -0.806555 0.0995001 vertex 5.35827 8.44328 0 facet normal 0.149039 -0.988831 0 vertex 2.42705 -1.76336 0 vertex -5.96308 -8.22545 2.19603 vertex -5.66146 -8.47298 2.19603 vertex -3.87041 9.34401.

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