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  • millermetalworx
    started a topic Millermatic 211 issue

    Millermatic 211 issue

    IF you look at the pic I posted you can tell there is an issue. Im using the machine in 220, and cannot get it set correctly, its like the arc is erratic and not concentrated at the tip of the wire. When in the puddle the arc seems to be drifting. Its creating a lot of spatter and awful beads. Now when i use it on 110 everything is the way its suppose to be, I can dial it in perfectly and I get great results. I am relatively new to welding, and this is the first 220 welder i have owned, my first was the mm140 which i layed down some great beads with. My question is is it me or the machine, or another culprit? Also i wish i knew the volts and ipm instead of the numbers provided so i could be more precise.Click image for larger version

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  • Steve83
    replied
    I have VERY little welding time (some of it is stick) and NO training on wire-feed (though I've burned a few spools), and I haven't been able to get a bad weld out of my new 211 on 110 or 220, lap or square, push or drag, even a little vertical, 14ga up to 5/16", indoors or in a small 8'-fenced side yard, day or night, using a crappy AD helmet. I'm not saying they're ALL the prettiest beads you'd ever find, but they're holding up, and the big ones look almost professional. I had a little problem with one of the hots coming out of the outlet I wired up, but that was obvious when the machine wouldn't power up. The only "special" steps I took were to polish all the contacts & apply silicone ELECTRICAL grease (NOT dielectric, thermal, or chassis) to the gun tube & O-rings, the work clamp terminal & bolt, and the MVP pins.

    So if there were problems with 211s, mine isn't among them. It came from eBay, and while I was doing a little modification on it last night, I noticed the build date on the rectifier board was only a few months old.
    Last edited by Steve83; 12-08-2012, 01:51 PM.

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  • harcosparky
    replied
    Originally posted by Broccoli1 View Post
    Search MM211 and you'll see the threads about 211's that have had problems when connected to 240v but run fine on 120v.

    Not a lot of them but it has happened.
    So you don't know if this is an issue that has been resolved or not, I guess on Monday I'll make a few phone calls to see what's up with 211's.

    I have good relationships with several welding suppliers who also happen to be Miller dealers.

    Thanks for the heads-up.

    Leave a comment:


  • Broccoli1
    replied
    Originally posted by harcosparky View Post
    Ok, before I go and pick one up can you tell me if this is something that has been resolved or are there still defective machines out there I should be concerned about?


    My primary use for the MM211 will be aluminum work.

    In fact my plan is to set it up with a spool gun and only the spool gun.

    If I need to do any steel work, I'll change the gas and run steel wire in the spool gun.



    .
    Search MM211 and you'll see the threads about 211's that have had problems when connected to 240v but run fine on 120v.

    Not a lot of them but it has happened.

    Leave a comment:


  • harcosparky
    replied
    Originally posted by Broccoli1 View Post

    The 240v "problems" we're real problems with defective machines not input Voltage
    Ok, before I go and pick one up can you tell me if this is something that has been resolved or are there still defective machines out there I should be concerned about?


    My primary use for the MM211 will be aluminum work.

    In fact my plan is to set it up with a spool gun and only the spool gun.

    If I need to do any steel work, I'll change the gas and run steel wire in the spool gun.



    .
    Last edited by harcosparky; 11-24-2012, 04:44 PM.

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  • Broccoli1
    replied
    Originally posted by harcosparky View Post
    First Home Depot does have 50 Amp outlets and plugs.

    Most importantly is the size of the wire from the breaker to the welder.

    They say that 8 ga is OK for 40 Amps ..... but if the run is too long, and extension cords are used voltage drop may be significant enough to cause problems.

    In order to insure my welders will operate as designed I installed all 6 ga wiring from the box to the welder.

    I'm picking up a MM211 in the very near future to replace a MM210 I had but was not being used as much as it would have been because of its physical size.

    I will be closely watching the MM211's performance though after hearing people are complaining about it.

    One things for certain, it won't be an input voltage problem if there are issues.

    I might just rent one for a day to see how I like it.
    Input Voltage is not a problem
    I've run mine on 120v 200' from a panel
    208v no problem
    240v from a Honda 6500w genset
    240v at home 30amp breaker

    Runs fine.

    The 240v "problems" we're real problems with defective machines not input Voltage

    Leave a comment:


  • harcosparky
    replied
    Originally posted by moonshiner View Post
    You need to buy the right plugs and outlets, and they don't carry these at Home Depot . Grainier or McMaster Carr are your best bet.

    First Home Depot does have 50 Amp outlets and plugs.

    Most importantly is the size of the wire from the breaker to the welder.

    They say that 8 ga is OK for 40 Amps ..... but if the run is too long, and extension cords are used voltage drop may be significant enough to cause problems.

    In order to insure my welders will operate as designed I installed all 6 ga wiring from the box to the welder.

    I'm picking up a MM211 in the very near future to replace a MM210 I had but was not being used as much as it would have been because of its physical size.

    I will be closely watching the MM211's performance though after hearing people are complaining about it.

    One things for certain, it won't be an input voltage problem if there are issues.

    I might just rent one for a day to see how I like it.

    Leave a comment:


  • Broccoli1
    replied
    Originally posted by moonshiner View Post
    I just bought a 211, it welds like a dream on 240, but you must have a 50amp breaker and a dryer plug is only good to 30amps and it can't handle the current. Your starving the machine for current and this will degrade the inverter. The outlet design and plug are low current and the internal inverter draws some current. Right ion the back of the machine it states 50 amps.

    You need to buy the right plugs and outlets, and they don't carry these at Home Depot . Grainier or McMaster Carr are your best bet.
    The mm211 is not an inverter

    It will run just fine on a 30 amp circuit

    Home depot by me has 6-50r

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  • moonshiner
    replied
    Millermatic 211 issue

    I just bought a 211, it welds like a dream on 240, but you must have a 50amp breaker and a dryer plug is only good to 30amps and it can't handle the current. Your starving the machine for current and this will degrade the inverter. The outlet design and plug are low current and the internal inverter draws some current. Right ion the back of the machine it states 50 amps.

    You need to buy the right plugs and outlets, and they don't carry these at Home Depot . Grainier or McMaster Carr are your best bet.

    Leave a comment:


  • dmwelding
    replied
    Millermatic 211 issue

    Just pulled my MM211 out of a box yesterday. Welds fantastic on 230. Much more power than I expected in a small machine.

    Leave a comment:


  • jfk92
    replied
    Originally posted by Doughboyracer View Post
    X2...except I have used mine on 120V.
    well - I'm glad to here THIS as I just loaded a spool into my spanking new MM211 last night and intend on firing it up tonight after checking polarity setting - I think it ships set up for solid wire?

    anyway - i'll verify then fire it up - hope I don't have the issues of this unfortunate thread originator....!

    Leave a comment:


  • Doughboyracer
    replied
    Originally posted by RAyJ View Post
    My 211 works like a champ on 240V even when I try to do something stupid. There was probably something wrong with yours that could have been fixed by the miller repair guys but glad to hear that you like the 212. FWIW: I have never used my 211 on 120V.
    X2...except I have used mine on 120V.

    Leave a comment:


  • RAyJ
    replied
    My 211 works like a champ on 240V even when I try to do something stupid. There was probably something wrong with yours that could have been fixed by the miller repair guys but glad to hear that you like the 212. FWIW: I have never used my 211 on 120V.

    Leave a comment:


  • millermetalworx
    replied
    Update

    I want to update you guys on the issue with the 211, i sold it! I bought a 212 yesterday and let me tell you guys, the difference is night and day. I was starting to doubt all the hours of practice did anything, well they did. I have the 212 hooked in the same dedicated dryer plug as the 211, i guess the only way to describe it is the 212 is more forgiving i suppose. At this point i am just happy to have a machine that works the way i need it to. I never thought in a million years i would talk bad about a miller product but the 211 is not a great 220 machine, and thats all i have to say about that!

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  • Doughboyracer
    replied
    Originally posted by Broccoli1 View Post
    I'm not sure what has you so fired up but I will address your concerns:

    I agree-that a lot of receptacles are wired incorrectly but in THIS case the receptacle is a Dryer receptacle so I assume it is working correctly otherwise his dryer wouldnt work. He made an extension cord to plug into the dryer receptacle so the extension cord connector could be wired incorrectly , just like you think the receptacle could be the problem. so I'm pretty sure it is not the receptacle, but since I can't meter it through the internets it's my best guess

    You also mentioned that the poor performance could be due to him having 208v, I disagree since I have a MM211 and have run it on 208v- it works just as it does on 240v. This I'm positive on.

    I do not assume he knows how the MM211 works but I think he has a pretty good idea that something is wrong since he has used the welder successfully on 120v.

    I've got friends in low places
    Not to mention the FACT that my garage was wired WRONG when I first plugged MY MM211 in for the first time...IT WOULDN'T"T EVEN TURN THE FAN ON!

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