to practice for a compound curve ( recoil shield) get a pipe elbow and prep it. this will give you a taste for doing compound curves.Mr. Monk suggested the coupler.........I have to check my pipe fittings and get something close to 1.5 o.d. and rainch it up for practice, this cyl.is 1.530 o.d. so I'm thinkin something like a 1-1/4 coupling, might even have some solid stock in the machine shop.
Monk....do you use all the fancy gear? on your barrels/cylinders please? Lindsay cylinder fixture and the barrel fixture originating from Mike Dub?to practice for a compound curve ( recoil shield) get a pipe elbow and prep it. this will give you a taste for doing compound curves.