  We report on the manufacture of a first batch of approximately 2,000 Gas
Electron Multipliers (GEMs) using 3M's fully automated roll to roll flexible
circuit production line. This process allows low-cost, reproducible fabrication
of a high volume of GEMs of dimensions up to 30$\times$30 cm$^{2}$. First tests
indicate that the resulting GEMs have optimal properties as radiation
detectors. Production techniques and preliminary measurements of GEM
performance are described. This now demonstrated industrial capability should
help further establish the prominence of micropattern gas detectors in
accelerator based and non-accelerator particle physics, imaging and
photodetection.
