Thanks for the picture Jesse looks like a fine engine. I had thought of fabricating it I am currently fabricating a small twin cyl piston valve marine engine using aluminium, phos bronse and steel. The drawings for the Triple Exp engine are only about $30.00 dollars so I may buy them. Jeff Dayman is right about tiptoeing around with castings I check 3 times, make small cuts and creep up on finished size. Lee 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.