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1 FG676 FGG676 Spartan-7 BGA, 15x15 grid, 13x13mm package, 0.8mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug865-Zynq-7000-Pkg-Pinout.pdf#page=80, NSMD pad definition (http://www.ti.com/lit/ds/symlink/txs0104e.pdf, http://www.ti.com/lit/an/snva009ag/snva009ag.pdf Texas Instruments DSBGA BGA Texas Instruments, NDQ, 5 pin (https://www.ti.com/lit/ml/mmsf022/mmsf022.pdf TO-PMOD-11 11-pin switching regulator package, http://www.ti.com/lit/ml/mmsf025/mmsf025.pdf Vishay PowerPAK SC70 dual transistor package http://www.vishay.com/docs/70486/70486.pdf TO-46-4 with Valox case, based on the "aoKicad" and "Kosmo\_panel" links on the original version of the top knob working_width = width_mm - thickness*2.2; left_rib_x = thickness * 1.2; right_rib_x = width_mm - thickness*2.2; left_rib_x = thickness * 1; //right_rib_x = width_mm - thickness*2; union() { z_position = height - v_margin; working_increment = working_height / (8+tolerance/5); // generally-useful spacing amount for vertical columns of stuff working_height = height.

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