Engine turning-Metal finish question.

msapers

 
Joined
Nov 23, 2008
Messages
693
Location
Los Angeles
Does anyone here have any experience with engine turning a curved piece of metal at home? I know that Eastwood makes an engine turning kit and I have a drill press, but the curvature of the piece concerns me. The piece in question is a motorcycle gas tank.

Any help, tips, warnings, etc... would be greatly appreciated.

Thanks,

Scott
 

e9999

You want to do what...?
Moderator
 
 
Joined
Sep 21, 2003
Messages
16,757
Location
US
ummm.... be repetitive? :D


(never done it myself... :))
 
Joined
Nov 6, 2008
Messages
96
Location
Lucerne,Ca.
I wasn't aware that it was called engine turning. I've been doing that at work here and there,it comes out allright.On a flat piece of sheet that wooden dowel trick would be great,but on a tank,I'd use a small course scotch-brite pad on a 90 deg. diegrinder.I've been using the center of the swirl for alingment,and overlapping halfway.If you want it really accurate line it out with pencil,or sharpie and clean off whats left when done. Hope that helps a little.;)
 
Joined
Jul 20, 2004
Messages
24,329
Location
Chandler, AZ
Engine turning on contoured surfaces is more art than science and I suck at art, so...:hillbilly: It's been a long time, but my tool of choice for rounded surfaces was a suction cup type valve lapping tool and steel wool.
 
Joined
Nov 6, 2008
Messages
96
Location
Lucerne,Ca.
Cut that valve lapping tool (good idea) in half stick it in your drill,or drill press,some coarse compound and I bet that would ROCK on a curved surface. I'd like to see a tank done that way.
Pics!:beer:
 
Top Bottom