On Mon, 09 Jan 2006 02:32:35 GMT, "Ebby"
wrote:

I am building my own airplane and am starting to fabricate the cowlings. I
am using 2024-T3 alclad. I have access to a slip roll but there are no
instructions as to its use. I have run metal through this tool before but
purely a trial and error event. I don't want to waste metal by trial and
error. Where could I find guidance using this metalworking tool? Thanks
in advance.


Try running some non-corrugated cardboard throug it. Graduate to
cheap galvanize.