[TheForge] Anyone tried to cut 24 gage brass sheet?

[Ron Childers]

This stuff is hard as woodpecker lips- and it is folded- the 5.25 idea
will work but it may require heating to unfold- maybe that will soften
it enough to cut. I'll pump up the compressor and give it a shot. This
brass is to be used as a guard for a fencing foil-(or a fancy hot dog
skewer). Once round it will be worked concave in a swage block with a
planishing hammer made from a round head railroad track connector
bolt...

-----Original Message-----
From: theforge-bounces at mailman.qth.net
[mailto:theforge-bounces at mailman.qth.net] On Behalf Of CGRAF
Sent: Thursday, September 06, 2012 11:09 AM
To: Blacksmithing List Sponsored by ABANA
Subject: Re: [TheForge] Anyone tried to cut 24 gage brass sheet?

I have one very similar to the pexto. It leaves a slight dimple at the
center and a very slight burr. All in all I use it if I need 3 or more
circles. Fewer and I am good to go with a scribe and a pair of aviation
snips. Just cut squares 5.25 or so center the scribe at 5 and cut it
out.

Mike Graf

On 9/6/2012 7:20 AM, Andrew Vida wrote:
> Have not tried this, if I understand the tool to which you refer which

> has a reciprocating punch that nibbles its way along.  That would seem

> painful, particularly if you need any accuracy.
>
> The fastest and best way to do this, beyond having a nice large water 
> jet rig would be a circle shear.  I have a small one that needs to be 
> set up... as do so many other things.
>
> A quick peek on ebay shows no hand shears available, only powered ones

> and they are costly.  But one of those would be your best bet.  Cut a
5"
> circle perfectly in under 30 seconds.
>
> Price may be worth it if you have a lot to cut.  There is this one:
>
> http://www.ebay.com/itm/Libert-Shear-Nibbler-Circle-Shear-Hi-Speed-3-p
> hase-motor-/270910652486?pt=LH_DefaultDomain_0&hash=item3f13888046
>
> and this:
> http://www.ebay.com/itm/PEXTO-CIRCLE-SHEAR-/290713684998?pt=LH_Default
> Domain_0&hash=item43afe2cc06
>
> Or this - perhaps you can make one for yourself:
>
> http://www.ebay.com/itm/Greenlee-No-740-Sheet-Metal-Hole-Circle-Cutter
> -Machinist-Electrician-Heating-use-/190723179163?pt=LH_DefaultDomain_0
> &hash=item2c67fcc29b
>
>
>
> On 9/5/2012 12:05 PM, Ron Childers wrote:
>>
>>
>> Has anyone tried a pneumatic panel cutter (like a muffler cutter) to 
>> cut 5" circles in brass sheet?
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