This is a Sources Sought Notice to determine the availability and technical capability of small and large businesses to meet the Government’s requirement for a new, fully functional Large Sinker EDM f... This is a Sources Sought Notice to determine the availability and technical capability of small and large businesses to meet the Government’s requirement for a new, fully functional Large Sinker EDM for the Arnold Engineering Development Complex (AEDC), Arnold AFB, Tennessee, in accordance with Attachment 1 – 1848 Large CNC EDM Sinker Specification Sheet.