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Need recomendations for buying a welding /brazing torch...
Hello everyone,
Just stepped in from the shop for a few moments. I need a recomendation and/or input (based on actual experience please) regarding a BurnzOMatic Oxy/MAPP gas torch. That's the one on the Home Depot shelf that uses two small cylinders and sells for about $50. Has anyone ever used one of these, and are they capable of doing work? Or are they mostly just a cruel joke? If they do work, what is the actual capacity of a torch like this? My budget and girlfriend currently will not permit the purchase of a standard Oxy/Actylene torch, and my MAPP gas/air soldering torch will not quite generate enough heat to braze the parts that I need to join. I tried a Actylene/air torch as well, but it wasn't hot enough either. The parts that I need to join are a 3/8" mild steel rod, and a 16-ga. mild sheet-steel "saddle." The sheet-steel saddle is 1 1/2" long x 1 1/2" wide with a "hump" in it 3/8" deep that fits over the 3/8" rod. On either side of the hump are flanges about 1/2" wide with mounting holes drilled in them. In cross-section, it looks like the Greek letter Omega. The saddle portion holds the rod portion of the part to the wing spars. The flight loads on this part will be mostly tortional, i.e. keeping the rod from turning inside the saddle. Thanks for your help, Harry Frey Wright Brothers Enterprises |
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"Wright1902Glider" wrote in message
... My budget and girlfriend currently will not permit the purchase of a standard Oxy/Actylene torch, and my MAPP gas/air soldering torch will not quite generate enough heat to braze the parts that I need to join. I tried a Actylene/air torch as well, but it wasn't hot enough either. Harry.......... I just bought a portable (small) complete oxyacetylene cutting/welding torch unit - with full tanks - for $7 at a garage sale. Stop shopping the big box stores and look around. I find 2-3 deals like this every year. Rich S. |
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On Tue, 28 Sep 2004 15:32:21 -0700, "Rich S."
wrote: "Wright1902Glider" wrote in message ... My budget and girlfriend currently will not permit the purchase of a standard Oxy/Actylene torch, and my MAPP gas/air soldering torch will not quite generate enough heat to braze the parts that I need to join. I tried a Actylene/air torch as well, but it wasn't hot enough either. Harry.......... I just bought a portable (small) complete oxyacetylene cutting/welding torch unit - with full tanks - for $7 at a garage sale. Stop shopping the big box stores and look around. I find 2-3 deals like this every year. Rich S. Rich, You should be ashamed of yourself!!! That's outright theft!! I'll offer you $50 for the setup and even let you use it occasionally. John |
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"John Ammeter" wrote in message
... Rich, You should be ashamed of yourself!!! That's outright theft!! I'll offer you $50 for the setup and even let you use it occasionally. John......... I'd give it to you. but. . . enybody who can afford a gorgeous house like that doesn't have time to use a torch! Folks - you ought to see it. It's about a hunnert feet long and overlooks Puget Sound. I tell you that Ampmeter knows how to live! John - you gonna have a roof on it before the rains come? Rich S. |
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On Tue, 28 Sep 2004 15:58:28 -0700, "Rich S."
wrote: "John Ammeter" wrote in message .. . Rich, You should be ashamed of yourself!!! That's outright theft!! I'll offer you $50 for the setup and even let you use it occasionally. John......... I'd give it to you. but. . . enybody who can afford a gorgeous house like that doesn't have time to use a torch! Folks - you ought to see it. It's about a hunnert feet long and overlooks Puget Sound. I tell you that Ampmeter knows how to live! John - you gonna have a roof on it before the rains come? Rich S. Aw, quit exaggerating... it's only 68' 2" long ( I just checked the plans) and the deck across the front is only 58' long. The roof was about half done when I was over there last Saturday. It's probably all roofed by now. I'm going over Thursday to deliver the fan motor assembly to the HVAC guy to install. I'm also going to be mowing the front acre if possible.... I haven't been able to mow it since I broke my knee last August 10th and, with the recent rains, it's really started to grow again... About 10" and thick, too. I'd better bring a six-pack along with me on the riding mower... should be at least 2 1/2 hours of mowing... John |
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Harry:
If this is the only application, you might consider a friend or local shop to get this job done and move on. Unless you are making a lot of joints, it probably isn't worth the time/money. |
#8
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Wright1902Glider wrote:
Hello everyone, Just stepped in from the shop for a few moments. I need a recomendation and/or input (based on actual experience please) regarding a BurnzOMatic Oxy/MAPP gas torch. That's the one on the Home Depot shelf that uses two small cylinders and sells for about $50. Has anyone ever used one of these, and are they capable of doing work? Or are they mostly just a cruel joke? If they do work, what is the actual capacity of a torch like this? My budget and girlfriend currently will not permit the purchase of a standard Oxy/Actylene torch, and my MAPP gas/air soldering torch will not quite generate enough heat to braze the parts that I need to join. I tried a Actylene/air torch as well, but it wasn't hot enough either. The parts that I need to join are a 3/8" mild steel rod, and a 16-ga. mild sheet-steel "saddle." The sheet-steel saddle is 1 1/2" long x 1 1/2" wide with a "hump" in it 3/8" deep that fits over the 3/8" rod. On either side of the hump are flanges about 1/2" wide with mounting holes drilled in them. In cross-section, it looks like the Greek letter Omega. The saddle portion holds the rod portion of the part to the wing spars. The flight loads on this part will be mostly tortional, i.e. keeping the rod from turning inside the saddle. I have one of these, I got it about 10 years ago. I was happy with using it for cutting. I would not use this torch to weld anything used on an aircraft. For making a jackstand, jig, or some other odds-and-ends for use around the shop, I personally don't see anything wrong with that. The torch has one head for all jobs (from cutting to welding) regardless of the size of the workpiece, and what little knowledge I have of gas welding gives me a bad gut feeling about it. One of John Ammeter's covers one of my biggest points- the oxygen is very expensive and uses up quick in these. I remember using up a few cylinders (the O2 cylinder can empty in about 5 minutes) before I figured out a good technique to set the oxygen flow. The flame temperature is as hot as you'll ever need. Back when I got the set, I looked up adiabatic flame temperatures for various gases. ISTR that propylene and oxygen is only about 100F cooler than oxyacetylene. Propylene (aka methyl acetylene) very similar to acetylene and is a major component of MAPP gas. The flame size is also very small, but I would say it is just large enough to weld the workpieces you describe. The big picture is as the other replies have stated, there may be better ways to skin this cat. |
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Folks - you ought to see it. It's about a hunnert feet long and overlooks Puget Sound. I tell you that Ampmeter knows how to live! John - you gonna have a roof on it before the rains come? Rich S. ++++++++++++++++++++++++++++++++++++++++ If not... Maybe, you'll get an invite to drain the swimming pool. Barnyard Bob |
#10
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Thanks for the input fellas. Believe me, I'd pawn my television if I found a
Lincoln Port-a-torch rig like that one at a garage sale... even if it was $100. But the thing is, that here in Covington, GA, there just aren't a whole lot of guys that weld. And the ones that do all think that they're custom motorcycle builders right now. And so finding tools at a garage sale is next to impossible... I've never even seen a cordless drill for sale, much less a torch rig or a MIG. Believe me I've been looking. If anyone has one for sale within 100 miles of Atlanta, please let me know. Thanks for the input on the small torch as well. I assumed that the cost of the cylinders at $8 each would be tremendous. But I don't have a lot of work to do. Harry Frey Wright Brothers Enterprises |
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