The air system at the new shop has been.. for the most part, inherited. What we got was nice, which was a full shop air system using metal pipes. Sadly, we don't know much about it's history. All of the quick-disconnect fittings are of indeterminate age, and since we came from a space without shop air, we're at a shortage of tools to use the compressed air.
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We need some hoses, some fresh QD fittings, and a small pile of adapters, and minor accessories to make the shop air a daily use thing, instead of a "well it means the laser cutter doesn't need a little compressor" thing.