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Sawing Sheet Metal
Thank you, Rick. I've filed the PDF ready for when I need to build one. I still have one of these, which was last seriously used for cutting out body panels for a custom off-roader I built in 1972-3. Cheers, John On Mon, 15 Jun 2020 at 22:23, Rick Sparber via <rgsparber=[email protected]> wrote: Here is a fixture I made that lets me precisely saw sheet metal with the saw in the horizontal position. |
Nice one Rick. To cut stainless steel you need to restrict the number of teeth in the?cut, otherwise the teeth just rub and it workhardens the stainless and will dull the blade. The minimum is 3 teeth in cut and if you're cutting 0.040" (1mm) thick sheet, that works out at an angle of 7.6 degrees (near enough 1/2" in 4"). ?at the start of the cut. The angle gets lower as the cut proceeds so that it just gives more teeth-in-cut. Better to set the angle like this than parallel to the surface of the table. Will cut way faster too - jv On Tue, Jun 16, 2020 at 2:23 AM Rick Sparber via <rgsparber=[email protected]> wrote: Here is a fixture I made that lets me precisely saw sheet metal with the saw in the horizontal position. |
开云体育John, ? All great suggestions. I have put them in the article but took the liberty of touching up the grammar. I’m sure I also Americanized it a bit. If you don’t like it, I’ll put it all back. ? ? Rick ? From: [email protected] On Behalf Of John Vreede ? Nice one Rick. To cut stainless steel you need to restrict the number of teeth in the?cut, otherwise the teeth just rub and it workhardens the stainless and will dull the blade. The minimum is 3 teeth in cut and if you're cutting 0.040" (1mm) thick sheet, that works out at an angle of 7.6 degrees (near enough 1/2" in 4"). ?at the start of the cut. The angle gets lower as the cut proceeds so that it just gives more teeth-in-cut. Better to set the angle like this than parallel to the surface of the table. Will cut way faster too - jv ? ? On Tue, Jun 16, 2020 at 2:23 AM Rick Sparber via <rgsparber=[email protected]> wrote:
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开云体育Kerrin, ? I hear you! My next project has got to be finding a way to organize my dozens of attachments. They are in a pile under the saw’s table. ? I never work with stainless steel because my applications have yet to require it. My one run-in did not go well for my tooling. ? Rick ? From: [email protected] On Behalf Of kerrin.galvin via groups.io ? Hi Rick, |
Just seen this, wasn't expecting you to be awake yet. Didn't expect that you'd use that stuff verbatim.? It was your idea in the first place, so you get to choose how to use it. I think I'll make another version to see if I can improve it.? Was real crap packing ply that I used as proof of concept, but it seemed to work better than I thought it would.?? I've got some offcuts of lovely 15mm 11ply birch that has a phenolic facing both sides that would make a nice permanent version.? Good night - jv On Wed, Jun 17, 2020 at 2:17 AM Rick Sparber <rgsparber.ya@...> wrote:
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开云体育John, ? You are welcome to save the PDF, but I suggest you check for updates before using it. I just made an update based on John Vreede’s excellent suggestions. ? Rick ? From: [email protected] On Behalf Of Giordano ? Thank you, Rick. I've filed the PDF ready for when I need to build one. ? I still have one of these, which was last seriously used for cutting out body panels for a custom off-roader I built in 1972-3. ? Cheers, John ? On Mon, 15 Jun 2020 at 22:23, Rick Sparber via <rgsparber=[email protected]> wrote:
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I bought a 1x2 meter sheet of 1mm 304 stainless steel while I was stationed in Turkey in 1983 or so. Spent the next 7 or 8 years trying to find a way to cut it. Finally gave it to a friend who wasn't moving overseas again. About a year ago Steve's Wholesale Tools had a special on a handcranked ratcheting cutter for up to 1/8" steel for $32.95. I bought it! Haven't even gotten it out of the box yet, as I've not had any need to cut sheetmetal here lately. Hope that's changing soon. Then maybe I might buy some more stainless. I was going to make a set of medieval armor for fighting in the SCA. Long, long ago, and far, far away...? Bill in OKC? William R. Meyers, MSgt, USAF(Ret.) A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects. LAZARUS LONG (Robert A. Heinlein)
On Tuesday, June 16, 2020, 09:38:14 AM CDT, Rick Sparber <rgsparber.ya@...> wrote:
Kerrin, ? I hear you! My next project has got to be finding a way to organize my dozens of attachments. They are in a pile under the saw’s table. ? I never work with stainless steel because my applications have yet to require it. My one run-in did not go well for my tooling. ? Rick ? From: [email protected] On Behalf Of kerrin.galvin via groups.io ? Hi Rick, |
开云体育??? ??? Bill can ya show a link or more info to that cutter ya bought ? ??? ??? animal On 6/16/2020 8:48 AM, Bill in OKC too
via groups.io wrote:
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开云体育“Then maybe I might buy some more stainless. I was going to make a set of medieval armor for fighting in the SCA. Long, long ago, and far, far away...?“
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But no matter where you go, there we are. J
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But what you really want for that is a Beverly shear or one of those HF clones.
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R James (Jim) Klessig P.E. | Senior Power Systems Engineer |
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