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AMT's welder is a little MIG similar to <a href="http://www.lincolnelectric.com/en-us/Equipment/Pages/product.aspx?product=K2471-1(LincolnElectric)">this one</a>, currently loaded with flux-core wire. There is a helmet and gloves and a jacket as well. I did a tiny bit of welding with it and it does spatter considerably; gas is preferable but for small projects it will work fine. We could indeed add gas tanks to it, swap out the wire, reverse the polarity. It's not TIG though and I don't think it would be suitable for anything other than mild steel. Nevertheless I invite Noisebridgers to come use it. We're not open all the time like NB but I personally volunteer to schedule a time with you to weld there, teach you how to use the machine if you don't know, and hang out while you work. Ping me offlist if you want to set up a time to do this.</div>
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I second the fire concerns about welding at Noisebridge. It's pretty unlikely that a small machine like Jake is suggesting is gonna make hot enough large metal pieces to catch anything other than a pile of sawdust on fire... but, hey, we actually do have piles of sawdust and that's not gonna change. If we can manage to segregate welding from woodworking then I'm for it.</div>
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Rachel1.0</div>
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On Fri, Aug 17, 2012, at 02:12 PM, David Rorex wrote:</div>
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AMT actually has a welder, I believe it is TIG, we're just lacking the gas. Works without gas, just the welds are much crappier</p>
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On Aug 17, 2012 2:00 PM, "John Ellis" <<a href="mailto:neurofog@gmail.com">neurofog@gmail.com</a>> wrote:<br defang_type="attribution" />
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I agree. Wooden floors, fumes would limit welding at NB.
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Is there a more appropriate workspace to use for large projects like this. </div>
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Ace Monster Toys?</div>
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-John<br />
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On Fri, Aug 17, 2012 at 1:50 PM, Matthew Silvey <span dir="ltr"><<a href="mailto:matthew@dancewithdevils.com" target="_blank">matthew@dancewithdevils.com</a>></span> wrote:<br />
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I think this is a great idea but maybe not good for NoiseBridge for<br />
the following reasons.<br />
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You may want to install it in a building not made of wood. I don't<br />
think NoiseBridge is in one of these.<br />
<br />
TIG welding does not create noxious fumes in the sense that using a<br />
welding method that relies on an inert gas doesn't. The material you<br />
weld might. Some lightweight reference here:<br />
<a href="http://en.wikipedia.org/wiki/Metal_fume_fever" target="_blank">http://en.wikipedia.org/wiki/Metal_fume_fever</a><br />
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Thanks,<br />
Matthew<br />
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On Fri, Aug 17, 2012 at 12:55 PM, Jake <<a href="mailto:jake@spaz.org" target="_blank">jake@spaz.org</a>> wrote:<br />
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> at Toorcamp i was reminded of how badly noisebridge, and all hackerspaces,<br />
> need a TIG welder. It is the soldeing iron of welding, because you can melt<br />
> things without necessarily adding metal or sticking them together.<br />
><br />
> Also, very importantly, TIG welding does not create noxious fumes because<br />
> the only gas released is Argon or Helium, as a shielding gas (to prevent<br />
> oxidation of the hot metal) and no flux is used.<br />
><br />
> Harbor Freight Tools carries a TIG welder for $400. It has good reviews and<br />
> I think it would be worth the money. Monad has an Argon tank he will donate<br />
> toward its operation.<br />
><br />
> It seems that its only drawbacks are the lack of a foot pedal (gee i wonder<br />
> if we could make one) and an unusual hose fitting for the argon (easily<br />
> replaced).<br />
><br />
> I have welded with fancy and cheap machines and the cheap machines are fine<br />
> if you mod them to do what you want. I had a cheap tiny Arc welder with a<br />
> low duty cycle (overheats fast) and guess what - if you put a fan in it the<br />
> duty cycle goes way up. Imagine that?<br />
><br />
> I just talked to the store in Concord and they have one in stock.<br />
> $399. The guy recommended the 2-year extended replacement warrantee for $79<br />
> or 1 year for $49. If we get it we should also get a nice automatic LCD<br />
> welding mask (i can donate a regular mask for spectators) and gloves and<br />
> shit.<br />
><br />
> <a href="http://www.harborfreight.com/tig-mma-inverter-welding-machine-with-digital-readout-98233.html" target="_blank">http://www.harborfreight.com/tig-mma-inverter-welding-machine-with-digital-readout-98233.html</a><br />
><br />
> Professionals liked the smooth quiet ark. The highvoltage arc starter works<br />
> great (they should include this feature in the prod description).<br />
> Odd gas inlet connector but easily fixed by removing and replacing with a<br />
> 1/4" pipe elbow and hose barb. Don't be fooled by the light wieght. Modern<br />
> design uses a much smaller power transformer with a highfrequency power<br />
> supply (like all modern computers) to hold down wieght.<br />
> BOTTOM LINE Yes, I would recommend this to a friend<br />
><br />
> Most Liked Negative Review:<br />
> Good Machine<br />
> I have this machine and was wanting a foot pedal. I might like this machine<br />
> more if I had a foot pedal.<br />
><br />
> (I'm sure Rusty the Welding Teacher would turn up his nose at this welder,<br />
> because his TIG machine was $2000, but he also turned up his nose at helping<br />
> us with the bus so whatever to that.)<br />
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