Hi, has anyone machined Peek, I'm going to have a go at making some sealing rings for the intake tee on an Indian 741 (or should that be teepee) The rings look like compression olives but with one flat side and seem to work the same way but I was wondering if there's anything I should know, I've looked on youtube but everything on there seems to be done on a cnc machine and I've only got a Chipmaster lathe and a Archdale milling machine. Cheers Tim.