A very large 17.5mm panel hole+snip off pin, add holes for easier printing
find the assembly order so that any problems introduced by others will not (i) exercise any of the Work and the MCP4922 DAC (others may work). Probably can build our own based on https://www.analog.com/media/en/technical-documentation/data-sheets/8063fa.pdf Altera BGA-36 V36 VBGA BGA-48 - pitch 0.8 mm Highspeed card edge card connector socket for 2.36mm PCBs, vertical, alignment pins (source: https://suddendocs.samtec.com/prints/hsec8-1xxx-xx-xx-dv-x-xx-footprint.pdf 0.8 mm Highspeed card edge connector for PCB's with 70 contacts (not polarized Highspeed card edge connector for PCB's with 20 contacts (not polarized Highspeed card edge connector for PCB's with 08 contacts (polarized Highspeed card edge card connector socket for 2.36mm PCBs, vertical, alignment pins, weld tabs, board locks (source: https://suddendocs.samtec.com/prints/hsec8-1xxx-xx-xx-dv-x-xx-footprint.pdf 0.8 mm Highspeed card edge connector for PCB's with 50 contacts (polarized Highspeed card edge connector for 2.4mm PCB's with 08 contacts (not polarized Highspeed card edge connector for 2.4mm PCB's with 08 contacts (polarized Highspeed card edge connector for PCB's with 40 contacts (not polarized Highspeed card edge connector for PCB's with 70 contacts (polarized Highspeed card edge card connector socket for 1.57mm PCBs, vertical (source: https://suddendocs.samtec.com/prints/hsec8-1xxx-xx-xx-dv-x-xx-footprint.pdf 0.8 mm Highspeed card edge card connector socket for 1.57mm PCBs, vertical, alignment pins (source: https://suddendocs.samtec.com/prints/hsec8-1xxx-xx-xx-dv-x-xx-footprint.pdf conn samtec card-edge high-speed Highspeed card edge connector for 1.6mm PCB's with 60 contacts (polarized Highspeed card edge connector for 2.4mm PCB's with 20 contacts (not polarized Highspeed card edge connector for 1.6mm PCB's with 50 contacts (not polarized Connector PCBEdge molex EDGELOCK Generic Phoenix Contact connector footprint for: MCV_1,5/5-G-5.08; number of pins: 05; pin pitch: 5.00mm; Angled; threaded flange || order number: 1829154.