New 250P problems

[balleman3]

clamp in (work) - pulse seems to help on flat surfaces but no not using it now trying to get it to weld proper without first. tried

Steel %75ar-%25co2 .035 1/8-1/2 in thickness all kinds of combinations of V and amperage always starting with the recommended settings and slowly moved around from there.

Aluminum %100 ar spoolgun .8mm wire .090-1/4 in thickness all kinds of settings and thicknesses always starting with recommended, same result piles up on the surface or jumps to spray arc and melts to a ball 1/4 away from work and flows with gravity from there only looks good on flat steel cant really put it where you want it
I have worked as a mig welder in the past so I have experience adjusting mig machines, also used to build aluminum awnings for another company using a spool gun everyday
I still have to put the tie bar in for the awning caves I really dont want to have to tig weld the 125ft of 3/4 by .090 aluminum square tubing thats what I bought the mig for
is there any way to adjust the wire speed without messing with the amps?

[Rambozo]

clamp in (work) - pulse seems to help on flat surfaces but no not using it now trying to get it to weld proper without first. tried

Steel %75ar-%25co2 .035 1/8-1/2 in thickness all kinds of combinations of V and amperage always starting with the recommended settings and slowly moved around from there.

Aluminum %100 ar spoolgun .8mm wire .090-1/4 in thickness all kinds of settings and thicknesses always starting with recommended, same result piles up on the surface or jumps to spray arc and melts to a ball 1/4 away from work and flows with gravity from there only looks good on flat steel cant really put it where you want it
I have worked as a mig welder in the past so I have experience adjusting mig machines, also used to build aluminum awnings for another company using a spool gun everyday
I still have to put the tie bar in for the awning caves I really dont want to have to tig weld the 125ft of 3/4 by .090 aluminum square tubing thats what I bought the mig for
is there any way to adjust the wire speed without messing with the amps?

It almost looks like you might be sucking air into the gas line from somewhere. Maybe do a through check for leaks, end to end, especially inside the MIG gun, if you haven't already.
MIG is CV, all the machine sets is voltage, amps are drawn based on wire speed and arc length, it will deliver whatever is required to maintain the voltage you set, until it maxes out.

[performance]

clamp in (work) - pulse seems to help on flat surfaces but no not using it now trying to get it to weld proper without first. tried

Steel %75ar-%25co2 .035 1/8-1/2 in thickness all kinds of combinations of V and amperage always starting with the recommended settings and slowly moved around from there.

Aluminum %100 ar spoolgun .8mm wire .090-1/4 in thickness all kinds of settings and thicknesses always starting with recommended, same result piles up on the surface or jumps to spray arc and melts to a ball 1/4 away from work and flows with gravity from there only looks good on flat steel cant really put it where you want it
I have worked as a mig welder in the past so I have experience adjusting mig machines, also used to build aluminum awnings for another company using a spool gun everyday
I still have to put the tie bar in for the awning caves I really dont want to have to tig weld the 125ft of 3/4 by .090 aluminum square tubing thats what I bought the mig for
is there any way to adjust the wire speed without messing with the amps?

I don't mean to sound harsh, but it sounds as if you need some instruction in MIG, because wire speed and amps is the same thing...you cannot divorce the two EVER...not in true mig. Where is your arc force set? What settings are you using? Again, which drive roll are you using for the steel? And how are you controlling wire speed on your spool gun?

AND Pulse in MIG is designed for spray.

[performance]

Also what I see is a shielding gas problem. What is your gas flow rate?

[balleman3]

Tried arc force in all positions but usually start on 50%. gas flow rate 25cfm 75%-25%co2 on steel with the mig gun, same with argon on the spool gun. I am using the .8 drive rollers that cam in the machine for .035 wire. sorry about the confusion on CC and CV I was just used to adjusting the wire speed at spool gun it has been a few years since I worked as a mig welder, had a brain fart but I never had a problem before adjusting a mig machine just went with the recommended settings and adjusted from there I have a lot of time on a mig and can lay a good bead in all positions but something is definitely way off here

same result globular transfer piles up on the surface with no penetration or jumps to spray arc and melts to a ball 1/4 away from work with no control

[performance]

25cfm 75%-25%co2 on steel with the mig gun,100% same with argon on the spool gun. I am using the .8 drive rollers that cam in the machine. sorry about the confusion on CC and CV I was just used to adjusting the wire speed at spool gun it has been a few years since I worked as a mig welder but I never had a problem before adjusting a mig machine just went with the recommended settings and adjusted from there I have a lot of time on a mig and can lay a good bead in all positions but something is definitely way off here

Are you sure you are using the .8 mm and not the larger groove? Also if you are using our regulators, they are in lpm, not cfh. You are blowing out about 50 cfh if you are using our numbers as a guide.

The spool gun adjusts on the panel. With .030 wire, try about 17.5-18 volts then run wire speed up to about 200-220....with standard steel and the regular gun.

[balleman3]

I’m using my reg at 25 cubic foot per hour
according to my chart the settings you are recommending for .030 are good for short circuit transfer on 16GA steel. I’m sure I have tried it already but I will go try that particular setting again on some 1/8 steel, I move half a volt at a time on whatever wire speed setting I have set at the moment It seems like something else is the problem here. my ground clamp should be plugged into (work piece) correct
I also have to cycle the power on the machine a lot because the arc doesn’t start is this normal

globular transfer piles up on the surface with no penetration or jumps to spray arc and melts to a ball 1/4 away from work with no control same with spoolgun aluminum

[performance]

I’m using my reg at 25 cubic foot per hour
according to my chart the settings you are recommending for .030 are good for short circuit transfer on 16GA steel. I’m sure I have tried it already but I will go try that particular setting again on some 1/8 steel, I move half a volt at a time on whatever wire speed setting I have set at the moment It seems like something else is the problem here. my ground clamp should be plugged into (work piece) correct
I also have to cycle the power on the machine a lot because the arc doesn’t start is this normal

globular transfer piles up on the surface with no penetration or jumps to spray arc and melts to a ball 1/4 away from work with no control same with spoolgun aluminum

There are still some things that you have not answered. Most important being what is your arc force setting? This is important to how the arc lays out and the penetration received. Typically about 75-85% works for me, but everyone's different.

1) FORGET the charts. An experienced welder should set the welder by his eyes and ears not some chart. The setting I gave you is for steel, and is good place to start albeit a little low. The welding you are doing looks like the voltage is too high anyway.
2) The wire speed is not in inches per minute...It's in a rough ball park, but it is a relative wire speed. To get actual wire feed speed, you need to press the trigger and spool off wire for 10 seconds, then measure it and multiply by 6.
3) When you use a spool gun for aluminum, you have to go to the next size up contact tip or buy a special aluminum tip or the wire will try to seize.
4) Aluminum Spool gun welding IS spray transfer. It does not work anyother way. Aluminum sprays at much lower voltage settings, but with higher wire feed/amp settings than steel.
5) Again, the purpose of single pulse mig is to use it in spray transfer mode...but don't use it until you get the welder set.
6) Instead of moving voltage to meet wire feed speed, you should be moving wire feed speed to match voltage. This is another issue. You'll never get the unit adjusted doing it this way.
7) The arc is probably not starting because you are putting the wire in contact with the metal when you squeeze the trigger. This will happen and cause an over current condition.
8) Set your burnback so the ball comes about 1/4" back to the electrode after welding.