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How am I doing?

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How am I doing?

Postby Sacman » Thu Apr 27, 2017 6:31 pm

PeteM wrote:That does help to know its maximum capabilities.

By measuring outputs though, you can find the machines "sweet spots" for different types of welds and wire sizes. For uphill, being able to hit it at like 18.5 volts and between 220-230 ipm. or stainless at X volts and Y ipm, etc. It's also nice to have some settings you can pretty much hang your hat on as good. Then if something is going wrong- you know it is really going wrong, rather than it being just a bad set up for the type of wire and weld.

You can check operating voltage at the terminals where they connect to the gun block and clamp (+ and -) by having someone hold the pins of the voltmeter to the posts as you do a short weld.


Thanks Pete, hopefully I can do that very soon and report back. Looking at the specs of this machine, is an ok machine? I kinda understand it but not 100%. Thanks


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Re: How am I doing?

Postby PeteM » Thu Apr 27, 2017 7:02 pm

They're actually quite good for their intended use. For home shop/hobbyist welding they're perfectly fine, and you can cover a lot of ground with it.

I firmly believe that good technique trumps all. Once you get some time on the metal with it and develop the techniques- no one will be able to look at a weld and say "That was done with a blah-blah-blah, and this was done with a (insert name here).

On the other hand, I've seen some crappy "welders" fail on some really nice machines. Like a brand new pipeworx just wasn't good enough for them... :lol:
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Re: How am I doing?

Postby Sacman » Thu Apr 27, 2017 7:14 pm

PeteM wrote:They're actually quite good for their intended use. For home shop/hobbyist welding they're perfectly fine, and you can cover a lot of ground with it.

I firmly believe that good technique trumps all. Once you get some time on the metal with it and develop the techniques- no one will be able to look at a weld and say "That was done with a blah-blah-blah, and this was done with a (insert name here).

On the other hand, I've seen some crappy "welders" fail on some really nice machines. Like a brand new pipeworx just wasn't good enough for them... :lol:

Gotcha! Thanks for the input[THUMBS UP SIGN]


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Re: How am I doing?

Postby Otto Nobedder » Thu Apr 27, 2017 7:31 pm

Sacman,

What you're looking for on the voltage side is OCV, or "open circuit voltage", which is easy to determine with a voltmeter. At the wire feeder, you'll see the post connected to the feeder for electrode contact, and the ground (workpiece) connection. Ideally, you'll connect your voltmeter across these such that you don't have to hold them there. Unlock your wire feed rollers (gas off, of course), so you don't feed wire. For each voltage setting available to you, hit and hold the trigger and record the reading after it stabilizes.

Knowing this, along with actual wire feed speeds, will help you use weld calculators to set up for anything you're doing. Keep in mind, even the calculators are only starting points, and it's in the hands of the user to fine-tune for the specific application.

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Re: How am I doing?

Postby Sacman » Thu Apr 27, 2017 8:14 pm

Otto Nobedder wrote:Sacman,

What you're looking for on the voltage side is OCV, or "open circuit voltage", which is easy to determine with a voltmeter. At the wire feeder, you'll see the post connected to the feeder for electrode contact, and the ground (workpiece) connection. Ideally, you'll connect your voltmeter across these such that you don't have to hold them there. Unlock your wire feed rollers (gas off, of course), so you don't feed wire. For each voltage setting available to you, hit and hold the trigger and record the reading after it stabilizes.

Knowing this, along with actual wire feed speeds, will help you use weld calculators to set up for anything you're doing. Keep in mind, even the calculators are only starting points, and it's in the hands of the user to fine-tune for the specific application.

Steve S

Ok great,thanks Steve. I see what your talking about, what would be a good setting on the volt meter? Also could just connect one of the leads to the ground alligator clip and hold the other on the electrode contact? Thanks, Chris.


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Re: How am I doing?

Postby Otto Nobedder » Thu Apr 27, 2017 8:35 pm

Your OCV will be DC, and will range from 15V to 30V, or even more depending on the machine. If you have a 50V scale on your voltmeter, I'd start there.

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Re: How am I doing?

Postby Sacman » Thu Apr 27, 2017 10:00 pm

Otto Nobedder wrote:Your OCV will be DC, and will range from 15V to 30V, or even more depending on the machine. If you have a 50V scale on your voltmeter, I'd start there.

Steve S

Will do, thanks for the advice and your help. Gonna try and get it done asap and report back. Chris


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Re: How am I doing?

Postby Sacman » Fri Apr 28, 2017 10:51 am

Otto Nobedder wrote:Your OCV will be DC, and will range from 15V to 30V, or even more depending on the machine. If you have a 50V scale on your voltmeter, I'd start there.

Steve S


Ok Steve, I did what ya said to do. Set voltmeter @ dcv200 and went thru each setting. With one lead on wire feeder electrode and the other on the ground clamp. This what I got

A-22.5
B-24.6
C-28.0
D-32.2

Thanks Chris


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Re: How am I doing?

Postby PeteM » Fri Apr 28, 2017 12:18 pm

That seems very high for operating voltage. Probably normal for OCV though.
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Re: How am I doing?

Postby Sacman » Fri Apr 28, 2017 8:14 pm

PeteM wrote:That seems very high for operating voltage. Probably normal for OCV though.

Out of curiosity, because I don't know lol. Do you think that it will change under a load?


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