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How am I doing?

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Re: How am I doing?

Postby PeteM » Fri Apr 28, 2017 8:51 pm

Sacman wrote:
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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Yeah. Typically the OCV is (open circuit voltage) when the machine is on but not welding. Then when the circuit closes with the trigger depressed it switches to operating voltage with current and the welding begins.
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Re: How am I doing?

Postby Otto Nobedder » Fri Apr 28, 2017 9:12 pm

Sacman wrote:
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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It should not change more than millivolts, since you have a "constant voltage" source for MIG. However, these numbers are very high for the machine you're using. You're sure the voltmeter was set for DC?

You "may" have to have someone record actual welding voltage, but if this varies from OCV that much, the voltage will change a lot with wire speed, meaning it's nowhere close to being a "constant voltage" source.

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Re: How am I doing?

Postby Poland308 » Fri Apr 28, 2017 9:52 pm

How the pictures looked it was high voltage is made entirely be correct. And if it's the transformer based machine could have an internal short across some of the winding causing the high voltage.
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Re: How am I doing?

Postby PeteM » Fri Apr 28, 2017 10:29 pm

Not really. I have a similar machine that reads similarly. When no welding is being done, the circuit is open, therefore the term OCV, or open circuit voltage.

32 volt max OCV is very typical for that line machines. Millermatics are typically around 30 also.

It's ChuckE, but useful enough-

https://www.youtube.com/watch?v=K_zBP-psFUk
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How am I doing?

Postby Sacman » Fri Apr 28, 2017 11:41 pm

Otto Nobedder wrote:
Sacman wrote:
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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It should not change more than millivolts, since you have a "constant voltage" source for MIG. However, these numbers are very high for the machine you're using. You're sure the voltmeter was set for DC?

You "may" have to have someone record actual welding voltage, but if this varies from OCV that much, the voltage will change a lot with wire speed, meaning it's nowhere close to being a "constant voltage" source.

Steve S

Hey Steve, here is the meter I used. I brought it for a repair on a clothes dryer and didn't wanna spend a whole lot of money on it considering I was hardly ever going to use it. It got the job done lol. I left it on the setting I used. I'm not very savvy with sort of stuff. I'll give it another go but with actual use and report back, Thanks Chris. Image


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Re: How am I doing?

Postby Sacman » Fri Apr 28, 2017 11:57 pm

Here is my machine that I'm using. According the website they made several different models "weld pak 100" hd and plus. They all seem to be the same,just wondering is all. Thanks guys for all your useful help and knowledge it's appreciated. Image


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Re: How am I doing?

Postby cherwolf » Sat Apr 29, 2017 12:50 pm

sacman, set voltage to B. Then take a gun in one hand, another hand shall grab the wire speed control knob. Grab piece of scrap metal, thick one preferred. Begin to weld one handed and adjust your wire speed with another hand. If it is too slow you gonna see slow large droplets of metal falling, if too fast, your wire will stuck in the puddle and spark a lot as an arc can not melt it so fast. Find those two extreme points, too slow and too fast and turn your wire speed knob in the middle between those two - that`s your welding current. Nice buzzing low spatter euphoria. If you need more energy, move to C and repeat the story.

Ooops, flux core, but, should work. Just drag not pull your welds. And move your gun in C pattern.
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Re: How am I doing?

Postby Oscar » Sun Apr 30, 2017 12:44 pm

Get a better helmet. I don't think you can see the puddle, or the "line" that you're supposed to be following from the weld joint.
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Re: How am I doing?

Postby Sacman » Sun Apr 30, 2017 2:21 pm

cherwolf wrote:sacman, set voltage to B. Then take a gun in one hand, another hand shall grab the wire speed control knob. Grab piece of scrap metal, thick one preferred. Begin to weld one handed and adjust your wire speed with another hand. If it is too slow you gonna see slow large droplets of metal falling, if too fast, your wire will stuck in the puddle and spark a lot as an arc can not melt it so fast. Find those two extreme points, too slow and too fast and turn your wire speed knob in the middle between those two - that`s your welding current. Nice buzzing low spatter euphoria. If you need more energy, move to C and repeat the story.

Ooops, flux core, but, should work. Just drag not pull your welds. And move your gun in C pattern.

10-4 will do, thanks for the advice.



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Re: How am I doing?

Postby Sacman » Sun Apr 30, 2017 4:28 pm

Oscar wrote:Get a better helmet. I don't think you can see the puddle, or the "line" that you're supposed to be following from the weld joint.
yeah I brought a new auto dimming helmet and was messing settings in the beginning of the night those pics where taken. Thanks for the friendly advice.


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