It's not like you can read a book about it and fab up parts with complex
compound curves on your first try. Slip rolls take quite a bit of
experience and 'hand' to achieve predictable results. You can partially
get by this requirement by *very slowly* decreasing the radius
adjustment at each end of the roll while you roll the work. Note that
repeatedly rolling the work back and forth throuth the rolls will change
the rate and shape of the curves as opposed to a single pass. Better to
practice the "feel" of slip rolling on cheap sheet metal, like the
24"X36" galv. roofing tin sheets at Home Despot.
JR
Dweller in the cellar

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.



--
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Home Page: http://www.seanet.com/~jasonrnorth
If you're not the lead dog, the view never changes
Doubt yourself, and the real world will eat you alive
The world doesn't revolve around you, it revolves around me
No skeletons in the closet; just decomposing corpses
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Dependence is Vulnerability:
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"Open the Pod Bay Doors please, Hal"
"I'm sorry, Dave, I'm afraid I can't do that.."