Cutting 24 gauge hurrcane panels

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Old 11-01-19, 08:22 PM
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Cutting 24 gauge hurrcane panels

I have to cut about a dozen of these hurricane panels, 24 gauge galvanized steel.



The cut is difficult because of the heavier gauge, and cutting through the up-across-down-across pattern.

I tried a tin snip, no good.

My next move was going to be an angle grinder with a thin metal blade or a diamond blade, but I thought I would ask here first if anyone has a better idea.
 
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Old 11-01-19, 08:29 PM
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Old 11-02-19, 04:56 AM
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I agree, do you need to cut along the length or across the panels?
 
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Old 11-02-19, 05:14 AM
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I use a circular saw. A metal cutting blade works but make sure you have a firm grip on the saw and the blade is turning full speed before it touches the metal. I've also used a diamond masonry blade with good results and it doesn't want to bite like a toothed blade.

Make sure you have hearing protection as it will be loud. Be ready for a shower of bright, glowing metal sparks. Avoid wearing synthetic clothing as it can melt or catch fire so stick with cotton or wool. And, be mindful of where your sparks are going as it can start a fire.
 
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Old 11-02-19, 05:20 AM
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Avoid wearing synthetic clothing as it can melt or catch fire so stick with cotton or wool.
Worth repeating! Back when polyester pants were in style I had a pair on while I cut a steel panel with a skil saw [ ferrous blade ] When I got done those britches were full of holes! I don't remember if those burn holes also got my skin or not.
 
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Old 11-02-19, 06:09 AM
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I would even double on hearing protection! Plugs and muffs. A face shield might also be a good idea.
 
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Old 11-02-19, 09:01 PM
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Cutting it across, that's why I need to cut through the up and down pattern.
 
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Old 11-03-19, 04:40 AM
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If straight cuts are important you could make a cutting jig.
A sheet of plywood would make a base where you would fashion a couple of blocks and a 1x6 as a guide.



 
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Old 11-03-19, 05:33 AM
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I am with GregH a cutting jig is a great idea.
Not only to get straight cuts but also to keep the material still while you cut it.
I would make it so it follows the panel's contour so that the upper face and lower face are held firmly in place while you cut.

PS: I would be finished this already as I would have used my angle grinder.
In my opinion it would be simpler and safer.
 
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Old 11-03-19, 09:58 AM
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I have cut a fair amount of sheet goods this way.
Siding and wavy polycarbonate roofing panels cut well with this method.
I aquired some 4' wide, 5/8' thick twin-wall green house panels and next spring will build a jig like this to be able to make factory looking edges.

The pic doesn't really show it but if you make the side supports fairly long and closely fit the width of the panels all you have to do is slide the panels up to a mark on the surface to make a quick accurate cut.
 
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