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Grid, YZT, 1.86x1.36mm, 12 Ball, 3x4 Layout, 0.5mm Pitch, https://www.adestotech.com/wp-content/uploads/AT25SL321_112.pdf#page=75 WLCSP 12 1.56x1.56 https://ae-bst.resource.bosch.com/media/_tech/media/datasheets/BST-BMM150-DS001-01.pdf WLCSP-12, 6x4 raster staggered array, 1.403x1.555mm package, pitch 0.4mm; see section 7.4 of http://www.st.com/resource/en/datasheet/stm32l476me.pdf WLCSP-81, 9x9 raster, 4x4mm package, pitch 0.8mm; http://ww1.microchip.com/downloads/en/PackagingSpec/00000049BQ.pdf#p495 TFBGA-216, 15x15 raster, 13x13mm package, 0.8mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=262, NSMD pad definition (http://www.ti.com/lit/ds/symlink/opa330.pdf, http://www.ti.com/lit/an/snva009ag/snva009ag.pdf Texas Instruments, VQFN-HR RNN0018A (http://www.ti.com/lit/ds/symlink/tps568215.pdf QFN, 16 Pin (https://pdfserv.maximintegrated.com/package_dwgs/21-0140.PDF (T3255-3)), generated with kicad-footprint-generator Soldered wire connection with double feed through strain relief, for a press-on type knob (rather than using a setscrew). (ShaftLength must be on the left sub-panel top_row = height - v_margin; working_increment = working_height / 6; // generally-useful spacing amount for vertical columns of stuff left_panel_width = 12.5*3 + tolerance*4; //three knobs plus space between them left_panel_spacing = left_panel_width / 3 + tolerance*8; echo("Left panel:", left_panel_width, " with spacing ", left_panel_spacing); right_panel_width = width_mm - col_right; // column from edge plus hole radius // mounting holes to 5mm + unplated, and revises jack footprint ) (polygon (pts Final revision; added custom DRC as project file.

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