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Type: Posts; User: Paul Moir

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  1. Careful running that motor that fast. It won't...

    Careful running that motor that fast. It won't like it for long.
    240Hz = 7200 RPM.
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    I've heard that, thank you for confirming it! ...

    I've heard that, thank you for confirming it!

    Lately I've had the need to measure UVC light. It's interesting to see what is transparent way up there and what isn't. A very thin transparent...
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    Yeah, that's the same stuff. Out here no-one...

    Yeah, that's the same stuff.

    Out here no-one I've found does anything other than rental bottles, so if you're only into occasional welding you get stuck with FC. The bottle costs more than the...
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    We don't have HF up here but our nearest...

    We don't have HF up here but our nearest equivalent also carried an Italian flux core, so probably it's the same. I think it was INE brand ER something ending in GS? It was much worse than the...
  5. I normally run my argon right out. When you get...

    I normally run my argon right out. When you get really low the CFH will drop on it's own and since you'll be expecting it you'll notice. If you run it all the way out your tungsten will burn back....
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    The only other I run into is when you're welding...

    The only other I run into is when you're welding on contaminated metal (casting for example) or welding something that's sealed airtight where there's a risk that something will spit back. The globs...
  7. Yeah, I think Rambozo said your eye's would pop...

    Yeah, I think Rambozo said your eye's would pop out of your head if you did it with the HF on... Sounds about right; I haven't managed to try that yet.
    Ah, the new style flowmeters are CFH now are...
  8. Yeah, that's weird. Gas should start flowing the...

    Yeah, that's weird. Gas should start flowing the instant the switch is pressed. It stops flowing once thepostflow timer runs out, which starts when the switch opens. So every time you hit the...
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    No argument there. AC/DC inverter TIG can weld...

    No argument there.

    AC/DC inverter TIG can weld whatever is weldable. It's not the fastest, but it is the most versatile. The stick function makes up the rest for things like welding cast iron or...
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    Thanks, gotcha!

    Thanks, gotcha!
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    Do you mean 308 here? It covers 301-305 types of...

    Do you mean 308 here? It covers 301-305 types of stainless which is the vast majority of the material that's out there (304 and 303 esp.)
    I do 316 & 304 mostly, and use 316 filler pretty much...
  12. Unless you've got like 50v going to your 22k pot,...

    Unless you've got like 50v going to your 22k pot, it's not an issue. V^2 / R my man...

    Of course you could throw a multimeter on the pot and then you'd know exactly what you could or could not...
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    RichardH explains it just fine. It's the...

    RichardH explains it just fine. It's the electrolytic capacitors I was thinking of.

    Cooling in electronics is kind of like oil in engines. If you want it to last, you don't skimp.
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    Perfect solution! :) If you play your cards...

    Perfect solution! :) If you play your cards right you can protect your ears while grinding too.
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    Good news! You'll appreciate the noisy fan when...

    Good news! You'll appreciate the noisy fan when your 250EX doesn't blow it's guts out the back after a couple years. Also it makes an awesome gas saver: get in the habit of turning off the gas...
  16. Thread: New 210EXT

    by Paul Moir
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    17,180

    I like having downslope active when in pedal...

    I like having downslope active when in pedal because I can set it for a "no crater". It's lazy I know but why not have that automatic? When your done just slam the pedal open and let the downslope...
  17. Thread: New 210EXT

    by Paul Moir
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    That is brilliant! Thank you.

    That is brilliant! Thank you.
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    For steel, I would get some 1/16" (1.6mm)...

    For steel, I would get some 1/16" (1.6mm) tungsten electrodes, just because they're easier to grind and you're going to be dipping a lot. 1/16" isn't going to be much use on aluminium though.
    ...
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    No prob. I know what you mean about the motors. ...

    No prob. I know what you mean about the motors. Always what you don't need when you don't need 'em, and never what you need when you do.

    Don't get too worked up about the heat thing. A lathe is...
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    Automationdirect will sell you a well regarded...

    Automationdirect will sell you a well regarded 1hp drive for $134 w/ free shipping. A motor from them is similarly priced if you can't find one for free somewhere. The 2hp 1 phase pushes you up to...
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    I'm with Zoama; the difference in welding with a...

    I'm with Zoama; the difference in welding with a gas lense instead of a regular cup should not be at all dramatic. The big deal is you get a little less colouring with steel & stainless with reduced...
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    This will never happen for the same reason that...

    This will never happen for the same reason that the Space Shuttle won't be as reliable as a wagon, despite excellent design and manufacturing. Complication adds failure modes faster than reliable...
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    Oh I think I learned it from geezer here. Best...

    Oh I think I learned it from geezer here. Best thing ever; I've showed a couple welders since.

    Take a long length of wire, clamp one end in a vice and chuck the other in a drill. Pull wire tight...
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    Did you learn the trick to straightening your mig...

    Did you learn the trick to straightening your mig wire?

    When I do stainless sheet outside corners, I leave a little overhang to fuse down and so rarely have to use filler. It's fast and...
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    Those chart, including the electrical codes, are...

    Those chart, including the electrical codes, are based on voltage drop rather than the capacity of the conductor. Of course you can't tolerate much voltage drop on a 12v system, and houses can have...
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