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Air motors have less than stellar efficiencies compared to compressed H2 or NatGas, but they have use in specialty enviros where others can’t live like exceptionally high temp situations or where low cost compressed air exists. It’s a niche machine for sure and probably could only be deployed...

I have read this site with great enjoyment over the last six months and am very impressed/humbled with the depth and breadth of skills here. I have recently completed a basic machinist course and am ready to tackle a good challenge. I have an interest in building a compressed air engine as my...