[effvee]

Hi, I had a good friend share the spec's on his ottinger cylinder. I wanted to have made some of my own using the spec's. However finding a tried and true Aluminum was imposible, and having that meterial receive coating of Nickisil. My last effort was 6061-T685 I believe. The T685 I guessing on, but in my storeage I have the certifacate of the type of Alum. I do need to have them cryoed and coated.




I don't know how well the cylinders will hold up, but I think they will do just fine after the coating is applied.