I'm working on an old cnc lathe and is trying to make it a little more useful, so right now I'm looking at automatic clamping systems. I'm just getting into pneumatics/ air powered stuff through M-code so it would be nice if I could somehow use it for this as well. I would prefer a chuck instead of collects since it's gonna work a wide range of diameters... Also I would like it to have a through-all bore so that a bar-feeder can (later) be attached at the rear end of the spindle. So any of you got any ideas? (I've got a fair level of machining skills and got access to mills and lathes, so DIY might be an option for at least parts of the project) thnx!