Hi Thorin; I did a search on "curving brass sheet" and found this forum thread that may be useful.
http://forum.woodenboat.com/showthread.php?81225-Bending-brass You might want to test on a couple of pieces of plain .040 brass sheet before doing the etched roof. I'd follow the suggestion of annealing, then roll the roof using a metal rod or wood dowel on a padded surface (cutting mat or a couple of dish towels should work). Pieter E. Roos --- On Wed, 1/5/11, Thorinn Marty <[email protected]> wrote: > Good morning, > I am assembling a brass > steeplecab kit. All of the pieces come flat. > The roof consists of a piece of 0.040" thick brass. > (Wire gauge 19.) I am > supposed to curve it to create a standard boxcab roof: flat > with curves only > from side-to-side. The radius at the edge is about > 1/4 inch and the rest is a > wide, gentle curve. > > I just shaped the first roof for my steeplecab fleet. > It was not fun and I am > not trilled with the results. (Fortunately a > wooden pantograph platform will > cover most of the mess.) The piece is too wide > for my bending brake. My hands > are not strong enough to shape this 0.040 or 19 gauge > brass sheet. It is too > slippery for my vice to hold with a rod plus I am > trying to not damage the > rivet detail. Do I need a specialty tool? > > This one is small at only 3 1/2 inches in length. I > plan to build some big > boxcabs, starting with a NYNH&H EF-3b. These will > be the same width but much > longer. > > I know these lists includes some masters of brass. > How do you shape such > things? > Thorin ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/S-Scale/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/S-Scale/join (Yahoo! ID required) <*> To change settings via email: [email protected] [email protected] <*> To unsubscribe from this group, send an email to: [email protected] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
