Member Greg Southerland has completed his heatless air dryer for use with the compressed air system within the lab. Its a really great build that will help the lab out a lot when it comes to plasma cutting and also general pneumatic tool use at the lab. The build is really cool using simple parts you can find at any plumbing parts and a donated PLC. He is going to expand the design some and working with another member, Peter Kwangjun Suk, adapt the control system to use an Arduino. You can check out all the details and schematic on the wiki @ [LINK REMOVED]
