Hi Jeff, The web site is: http://members.surfeu.fi/animato/steamloco.html He is a graphic designer and animator by profession so that the illustrations are first class. For anyone new to this business such as myself the site is an excellent education. He works very fast but gets a lot of stuff done outside eg laser cutting of frames but on the other hand he doesn't use so many ready made castings. The text is in good grammatical English which is strange to read these days; spelling is good too. I didn't mention the address because I thought everyone here must know it. John From: "Jeff Dayman" > Hi John, > > What Finnish guy? Could you let us in on the site address please? > > Thanks, Jeff Dayman > From: "John Rippengal" > > >> I notice that the Finnish guy who has such a wonderful website uses Viton >> 'O' rings on the piston and Teflon on the piston valve in copper alloy >> cylinders. Seems to be pretty successful. >> John Rippengal. >> >> From: "Andy A" <AndyA@xxxxxxxx> >> >> >> > HI All >> > Is it possible to use rings in a gunmetal cylinder? >> > >> > Andy >> MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.