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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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Advice on buying a welder
Hi,
I am looking at buying a welder and would appreciate some advice on which type to get. My budget is limited to around the £50 mark, and it will be used for mostly artistic work & small repairs, nothing requiring any perfect seams. I used to weld years ago with an Oxy and Mig, although I found the plasma cutter to be the most fun, this was at the Edinburgh Sculpture Workshops so I had access to all of their equipment. I have seen an 185 Amp Oxford Arc Welder locally. Would this suit my needs? Thank you for your help. /Heds |
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on 03/04/2005, Heds supposed :
Hi, I am looking at buying a welder and would appreciate some advice on which type to get. My budget is limited to around the £50 mark, and it will be used for mostly artistic work & small repairs, nothing requiring any perfect seams. I used to weld years ago with an Oxy and Mig, although I found the plasma cutter to be the most fun, this was at the Edinburgh Sculpture Workshops so I had access to all of their equipment. If you needs are to weld 3mm and above thick steel, then an ordinary electric welder (using rods) would do fine. Mig types are essential for steel much thinner than this though. -- Regards, Harry (M1BYT) (L) http://www.ukradioamateur.org |
#3
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On Sun, 03 Apr 2005 23:33:48 +0100, Heds
wrote: My budget is limited to around the £50 mark, That's just not enough. You need the angle grinder, the box of disks, the automatic hat, the gas bottle hire/disposable and all the rest of it. You _can_ get a S/H MIG for 50 quid, but they're less than wonderful. IMHO a decent MIG is 250 and a real one is 500. On a budget limited to £50, I'd get a S/H natural draught gas torch from eBay, some tinsnips, hammers and mallets, a half-empty propane cylinder (2,50 from the council dump) and an immersion heater (tenner) from the same place. Then take up coppersmithing, which is just as much fun as welding steel and a lot less demanding on tooling. and it will be used for mostly artistic work & small repairs, nothing requiring any perfect seams. MIG rather than stick. Stick is certainly cheaper to pick a machine up for, but it's just not a practical tool to use for almost anything. I used to weld years ago with an Oxy and Mig, although I found the plasma cutter to be the most fun, Yes, well it would be 8-) this was at the Edinburgh Sculpture Workshops so I had access to all of their equipment. So go back there, or local equivalent. Whereabouts are you ? I have seen an 185 Amp Oxford Arc Welder locally. Would this suit my needs? It would eat up your budget and leave you with something that's useless on anything less than 1/8" plate and only really useful for over 1/4". Neither sort of metal being the sort of stuff you can cut witht the tools budget you'd have left over. -- Socialism: Eric, not Tony |
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"Andy Dingley" wrote in message ... On Sun, 03 Apr 2005 23:33:48 +0100, Heds wrote: My budget is limited to around the £50 mark, That's just not enough. You need the angle grinder, the box of disks, the automatic hat, the gas bottle hire/disposable and all the rest of it. You _can_ get a S/H MIG for 50 quid, but they're less than wonderful. IMHO a decent MIG is 250 and a real one is 500. Agreed - even many MIGs around 250 ish are pretty poor, and you have to pay 500 ish to get a good, reliable machine with decent power, a wire feed which works all the time and a "EuroTorch" connector to allow easy replacement of the torch when you break the one which comes with it. I battled with a cheap machine for years and hired a pro machine for bigger work. Eventually I gave up with this arrangement and bought a decent pro machine and have never looked back. Also factor in hire of "Argonshield" from BOC - the disposable cylinders are a waste of time as expensive and only hold a tiny amount of gas. On a budget limited to £50, I'd get a S/H natural draught gas torch from eBay, some tinsnips, hammers and mallets, a half-empty propane cylinder (2,50 from the council dump) and an immersion heater (tenner) from the same place. Then take up coppersmithing, which is just as much fun as welding steel and a lot less demanding on tooling. and it will be used for mostly artistic work & small repairs, nothing requiring any perfect seams. MIG rather than stick. Stick is certainly cheaper to pick a machine up for, but it's just not a practical tool to use for almost anything. I used to weld years ago with an Oxy and Mig, although I found the plasma cutter to be the most fun, Yes, well it would be 8-) this was at the Edinburgh Sculpture Workshops so I had access to all of their equipment. So go back there, or local equivalent. Whereabouts are you ? I have seen an 185 Amp Oxford Arc Welder locally. Would this suit my needs? It would eat up your budget and leave you with something that's useless on anything less than 1/8" plate and only really useful for over 1/4". Neither sort of metal being the sort of stuff you can cut witht the tools budget you'd have left over. Yup - MIG will weld thin plate, ARC (stick) won't. Alan. |
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Heds wrote:
Hi, I am looking at buying a welder and would appreciate some advice on which type to get. My budget is limited to around the £50 mark, and it will be used for mostly artistic work & small repairs, nothing requiring any perfect seams. I used to weld years ago with an Oxy and Mig, although I found the plasma cutter to be the most fun, this was at the Edinburgh Sculpture Workshops so I had access to all of their equipment. I have seen an 185 Amp Oxford Arc Welder locally. Would this suit my needs? Thank you for your help. /Heds Thanks for all your advice. So I should look for a MIG rather than an ARC. Next question is: Gas or Gas less? I don't really fancy the trouble of bottles and the associated space they would take up so I think gas less would be best. I already have an angle grinder, disks, snips etc so that is not part of my budget. I only need the welder, flip down mask and gloves. Re going back to the workshops, I live in Surrey now and have not found anything similar. Also I don't have the time to make full use of the membership so it would be a bit of a waste. thanks, /Heds |
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On Mon, 04 Apr 2005 19:24:43 +0100, Heds
hedleyDOTphillips@SPAMcomsaDOTcoDOTuk wrote: Thanks for all your advice. So I should look for a MIG rather than an ARC. Next question is: Gas or Gas less? I don't really fancy the trouble of bottles and the associated space they would take up so I think gas less would be best. I already have an angle grinder, disks, snips etc so that is not part of my budget. I only need the welder, flip down mask and gloves. Re going back to the workshops, I live in Surrey now and have not found anything similar. Also I don't have the time to make full use of the membership so it would be a bit of a waste. Hi, Get a gas MIG, look at the prices of normal vs flux core wire and bear in mind you'll need more of the flux cored stuff: http://www.johndavies.co.uk/nminiwire.htm The budget gas MIGs are set up to take small disposable cylinders, but can use full size ones with the right adapter. I would have thought a gas MIG can use flux cored wire too with no problems. Would be well worth getting some scrap or spare metal to practice with, and some course notes or a decent book on welding. BTW How thick is the metal you're welding? cheers, Pete. |
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Pete C wrote: So I should look for a MIG rather than an ARC. Next question is: Gas or Gas less? I don't really fancy the trouble of bottles and the associated space they would take up so I think gas less would be best. Re going back to the workshops, I live in Surrey now and have not found anything similar. Also I don't have the time to make full use of the membership so it would be a bit of a waste. Hi, Get a gas MIG, look at the prices of normal vs flux core wire and bear in mind you'll need more of the flux cored stuff: The budget gas MIGs are set up to take small disposable cylinders, but can use full size ones with the right adapter. I would have thought a gas MIG can use flux cored wire too with no problems. MigTigArc Portsmouth are useful, inside I'd use gas, outside gasless, most will handle gasless fluxed wire, with the right sized tip! |
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Heds wrote:
Heds wrote: Thanks for all your advice. So I should look for a MIG rather than an ARC. Next question is: Gas or Youve only got 50 notes, and you wont get anything but arc for that. Arc is cheap to buy and dead cheap on electrodes (from 25p). The downsides are 2: the weld is a mess and needs a cleanup it takes a bit of practice to get the stick waggling right. Expect problems for the first 1/2 to 1 hour with arcs going out, and workpiece not heated enough. Gasless wire is very nice to use, but you wont get anything for =A350, and the wire is expensive too. =A39 a reel isnt huge but it adds up with reel after reel, theres not much on one reel. Advantages: easy, 5 minutes practice is enough welds are clean, no need to bash the crap off them afterwards. Since youve got 50, its arc. Dont touch the 185A one, it'll vapourise anything you work on instantly. The one issue I always notice with budget welders is current control that doesnt go low enough. You need one that goes down to 15A at the most, I dont think Ive ever needed to use as much as 40A. The brochures promote huge currents, but thats just not whats needed, especially for lightweight work. You could probably build a house structure with 40A. NT |
#9
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In article , "Heds"
hedleyDOTphillips@SPAMcomsaDOTcoDOTuk says... snip So I should look for a MIG rather than an ARC. Next question is: Gas or Gas less? I don't really fancy the trouble of bottles and the associated space they would take up so I think gas less would be best. I bought a dual gas/gasless MIG a while ago, having had a conventional gas MIG before. I still haven't tried it with gas because gasless has been good enough for the stuff that I do, and less hassle. Some stuff will still need gas, so keep your options open - it probably only makes a small difference to the price. |
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Pete C wrote:
On Mon, 04 Apr 2005 19:24:43 +0100, Heds hedleyDOTphillips@SPAMcomsaDOTcoDOTuk wrote: snip BTW How thick is the metal you're welding? cheers, Pete. Only a few millimeters, maybe some scaffolding poles/foot plates, bits of scrap I pick up from skips. I used to mainly just use 2-3mm steel plate. /Heds |
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On Tue, 05 Apr 2005 22:58:09 +0100, Heds
hedleyDOTphillips@SPAMcomsaDOTcoDOTuk wrote: maybe some scaffolding poles Don't waste your time on scaff pipe. It's galvanised, which means lousy welds and a headache afterwards. You can scrounge better materials. |
#12
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On Tue, 05 Apr 2005 22:58:09 +0100, Heds
hedleyDOTphillips@SPAMcomsaDOTcoDOTuk wrote: Only a few millimeters, maybe some scaffolding poles/foot plates, bits of scrap I pick up from skips. I used to mainly just use 2-3mm steel plate. Hi, In that case an arc welder should do, especially for overlapping 'lap' joints. Maybe worth hiring or borrowing one first and practising on some scrap to see how it goes. Well worth reading up on how to weld, if welding galvanised or rusty steel it needs to be ground back to clean steel first. Also keep the welding rods dry, dry them out in an oven if necessary. A local welding supplier should be a cheaper place to buy rods than somewhere like Halfords or a tool hire place, plus be a good source of advice. cheers, Pete. |
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Andy Dingley wrote:
On Tue, 05 Apr 2005 22:58:09 +0100, Heds hedleyDOTphillips@SPAMcomsaDOTcoDOTuk wrote: maybe some scaffolding poles Don't waste your time on scaff pipe. It's galvanised, which means lousy welds and a headache afterwards. You can scrounge better Add an angle grinder for some 6 quid, and the galvanising just goes away. |
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In message , Ian
Stirling writes Andy Dingley wrote: On Tue, 05 Apr 2005 22:58:09 +0100, Heds hedleyDOTphillips@SPAMcomsaDOTcoDOTuk wrote: maybe some scaffolding poles Don't waste your time on scaff pipe. It's galvanised, which means lousy welds and a headache afterwards. You can scrounge better Add an angle grinder for some 6 quid, and the galvanising just goes away. You just became an honorary member of UKRM, all you need is a bike -- geoff |
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raden wrote:
In message , Ian Stirling writes Andy Dingley wrote: On Tue, 05 Apr 2005 22:58:09 +0100, Heds hedleyDOTphillips@SPAMcomsaDOTcoDOTuk wrote: maybe some scaffolding poles Don't waste your time on scaff pipe. It's galvanised, which means lousy welds and a headache afterwards. You can scrounge better Add an angle grinder for some 6 quid, and the galvanising just goes away. You just became an honorary member of UKRM, all you need is a bike Railway Maintainance? Prefer my transport to have at least enough wheels to define a plane. |
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On 08 Apr 2005 00:02:34 GMT, Ian Stirling
wrote: maybe some scaffolding poles Add an angle grinder for some 6 quid, and the galvanising just goes away. Prefer my transport to have at least enough wheels to define a plane. Welds things out of galved scaff ? Wants enough wheels to define a plane ? Oh fishes, he's a trike builder ! |
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Andy Dingley wrote:
On 08 Apr 2005 00:02:34 GMT, Ian Stirling wrote: maybe some scaffolding poles Add an angle grinder for some 6 quid, and the galvanising just goes away. Prefer my transport to have at least enough wheels to define a plane. Welds things out of galved scaff ? Wants enough wheels to define a plane ? Oh fishes, he's a trike builder ! Actually, I prefer a nice car. My welding is (at the moment) limited to blowing large holes in wheelbarrows. |
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In message , Ian
Stirling writes raden wrote: In message , Ian Stirling writes Andy Dingley wrote: On Tue, 05 Apr 2005 22:58:09 +0100, Heds hedleyDOTphillips@SPAMcomsaDOTcoDOTuk wrote: maybe some scaffolding poles Don't waste your time on scaff pipe. It's galvanised, which means lousy welds and a headache afterwards. You can scrounge better Add an angle grinder for some 6 quid, and the galvanising just goes away. You just became an honorary member of UKRM, all you need is a bike Railway Maintainance? Prefer my transport to have at least enough wheels to define a plane. So do you need 4 wheels on an angle grinder too ? -- geoff |
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In message , Andy Dingley
writes On 08 Apr 2005 00:02:34 GMT, Ian Stirling wrote: maybe some scaffolding poles Add an angle grinder for some 6 quid, and the galvanising just goes away. Prefer my transport to have at least enough wheels to define a plane. Welds things out of galved scaff ? Wants enough wheels to define a plane ? Oh fishes, he's a trike builder ! No, a physicist (IIRC) -- geoff |
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Ian Stirling wrote:
Actually, I prefer a nice car. My welding is (at the moment) limited to blowing large holes in wheelbarrows. thats the trouble with thin metal. Lower amps can help, but theres only so thin one can go with welding. If you want to stick anything thinner, try brazing it. NT |
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In article ,
Ian Stirling wrote: As I diddn't have adequate illumination, I tried using a lighter shade of goggle. Hence, I could see nothing, and half a second later there was a small hole. Of course, I then made almost enough progress in parts to convince myself that it was getting smaller - it wasn't. Get an auto dimming helmet - essential for beginners. With better illumination, I managed to fix one. I'm going to try clamping on a patch of thicker metal, then seeing if I can weld that on. In my limited experience patching is easy. It's butt welding the thin stuff that gives me grief. And exactly what I want to do for car bodywork repairs. ;-( -- *Life is hard; then you nap Dave Plowman London SW To e-mail, change noise into sound. |
#23
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"Dave Plowman (News)" wrote:
In article , Ian Stirling wrote: As I diddn't have adequate illumination, I tried using a lighter shade of goggle. Hence, I could see nothing, and half a second later there was a small hole. Of course, I then made almost enough progress in parts to convince myself that it was getting smaller - it wasn't. Get an auto dimming helmet - essential for beginners. I think I can get by with a 500W floodlight 10cm from the workpiece, which is actually adequate light to see the workpiece, even after the arc is struck. |
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In message
"Dave Plowman (News)" wrote: [snip] In my limited experience patching is easy. It's butt welding the thin stuff that gives me grief. And exactly what I want to do for car bodywork repairs. ;-( From what I remember of a spell in a bodyshop, butt welding car panels is usually ineffective, forming a join that is weak, and prone to cracking. It was (then) more usual to form a swage, and lap joint the affected panel, and spot welding down the lap. Properly leaded up (yes, lead, not that plastic pudding stuff) afterwards, repairs such as these could be a thing of great satisfaction, and sometimes even beauty :-) -- Jim White Wimbledon London England |
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Dave Plowman (News) wrote:
In my limited experience patching is easy. It's butt welding the thin stuff that gives me grief. And exactly what I want to do for car bodywork repairs. ;-( why butt weld? The usual thing is to overlap and weld, after dishing the metal in slightly. I dont think I'd even try to butt weld thin stuff. There are some people that could use butt welding... but thats another story. NT |
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