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ditchtiger
05-01-2011, 05:58 PM
Have only found copper sheets at a hobby store and it is soft copper.
Does not feed through Pat's die worth a damn!
This came in .005 sheets.
Makes a good check but does not go through the top punch for crud.
Where should I look?
RU shooter
05-01-2011, 06:37 PM
Have only found copper sheets at a hobby store and it is soft copper.
Does not feed through Pat's die worth a damn!
This came in .005 sheets.
Makes a good check but does not go through the top punch for crud.
Where should I look? Try doubling up the sheets when cutting the disc's Also places like McMaster carr carry copper/brass/ and alum. sheet and foils in various thickness, BTW Brass works very well and is usually less money ,Alum. even more so.
ditchtiger
05-01-2011, 06:44 PM
Already tried doubling up the sheets.
Got twice the trouble.
Also tried doubling with aluminum and copper.

Had wondered about brass.
Only had the check maker for 1 week so I experimenting.
ditchtiger
05-01-2011, 06:47 PM
McMaster carr?

I'm on the left coast, ORYGUN.
HATCH
05-01-2011, 07:09 PM
http://www.mcmaster.com/#copper-shim-stock/=c4cvgl
ditchtiger
05-01-2011, 07:38 PM
Thank you.
RU shooter
05-01-2011, 09:36 PM
Or something like this http://www.mcmaster.com/#brass-foil/=c4erag Or http://www.mcmaster.com/#aluminum-foil/=c4es2i
Larry Gibson
05-02-2011, 10:08 PM
http://www.mcmaster.com/#copper-shim-stock/=c4cvgl


I've been using the .014" brass shim. Works great on several moulds but some require a .016" thickness.

Larry Gibson
arkypete
05-03-2011, 07:48 AM
May want to check a roofing place, some folks are still using copper for flashing.

Jim
ChuckJaxFL
05-05-2011, 12:54 PM
Already tried doubling up the sheets.
Got twice the trouble.


Sorry you're having trouble, but this cracked me up!
TreeKiller
05-06-2011, 12:28 AM
May want to check a roofing place, some folks are still using copper for flashing.

Jim

What I found was .024
Von Gruff
05-06-2011, 04:44 PM
Our copper roof flashing in NZ is .021 and is just right for my 2400fps + loads. I cut in strips, anneal, and make checks. Works well. Use 2x .012 Al for slower loads.

Von Gruff.
PatMarlin
05-12-2011, 10:32 AM
Yaw- .005 in soft copper would probably be like trying to feed AL foil through the die. Maybe it could be hardened? Bake it, then quench it in ice water? Someone here would certainly come up with an idea.

That's the thickness of beer cans pretty much, and beer cans work well, but it's thin stiff stuff.
legend
05-21-2011, 06:43 PM
Just a thought...
I live in a town that makes large radiators for the mining industry.

i bet lots of places do this,but if they do i bet they have strips of copper that they run through a machine that crimps(folds) the copper to form the fins.

i would bet they have a bucket for the mistakes also.

its fairly thin copper and might just work great,i have not put a mike on it though.