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  • Noel
    replied
    Click image for larger version

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ID:	603414 You're actually quite consistent. Almost zig zag sewing machine. Just have to tighten up the stitches.
    Stepping to far to fast is a fact, a little wide in the weave just an opinion?

    And while I won't say you can't, because you did, you'd be better off creating the same size weld in 3 smaller stringer passes. Less risk of this kind of slag entrapment, reduces the risk of cold lap, easier to blend between passes as well diminished fillet size strengths due to the voids. It's all about the triangle.

    Click image for larger version

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ID:	603412Click image for larger version

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ID:	603413Those glass island are the result of voltage and longer arc length lengths, but the trapping between is the result of over stepping and leaving a void. I'd agree you are up and running. Full speed ahead just slower.

    Hopefully your not offended by my opinions, or criticisms. In the bigger picture, you did weave it in there. I'm assuming there was one under it and that a second pass?

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  • One1
    replied
    I’ve been very pleased with it the last few days that it’s been on hardwire. I haven’t migged in about eight months or so but I am very happy with how the machine is performing even though I’m a little bit out of step and I need to get my rhythm back as you can see the machine is doing its job
    Attached Files

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  • jjohn76
    replied
    Originally posted by OscarJr View Post
    The 211 inverter AutoSet works great in both C25 and in the gasless Flux-Core settings, since they are different switch settings. But yea, too bad it had that wobble (even in the replacement motor).

    200A is enough to run 045 dual shield but on the bottom-middle end of it's useful range. I think the "optimum" is approx 250A, but at it's very lowest, it can be made to run as low as 150A or so. 150A-205A = low end, 205A-250A = mid range, 250-300A = top end, IMO. 035 dual shield is definitely a much better choice for a 200A class machine, IMO.

    Luckily my current welders have synergic "autoset" curves for all kinds of wire, including dual shield in 035 and 045 diameters, and they're pretty much right on the money (for a T-joint, just like the chart suggestions are for non "autoset" welders). Other joint configurations always require tweaking.
    Oscar, I had a Miller CP-300 running that Fabco Triple 7.045 almost as fast as the R-115 could run it, just over 320 amps and somewhere around 33V, and I could not keep up with the puddle. It was holy hot on the hand for the 4" bead I ran. I'd show the cold laps, but I still want to be allowed on the forum...

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  • OscarJr
    replied
    The 211 inverter AutoSet works great in both C25 and in the gasless Flux-Core settings, since they are different switch settings. But yea, too bad it had that wobble (even in the replacement motor).

    200A is enough to run 045 dual shield but on the bottom-middle end of it's useful range. I think the "optimum" is approx 250A, but at it's very lowest, it can be made to run as low as 150A or so. 150A-205A = low end, 205A-250A = mid range, 250-300A = top end, IMO. 035 dual shield is definitely a much better choice for a 200A class machine, IMO.

    Luckily my current welders have synergic "autoset" curves for all kinds of wire, including dual shield in 035 and 045 diameters, and they're pretty much right on the money (for a T-joint, just like the chart suggestions are for non "autoset" welders). Other joint configurations always require tweaking.
    Last edited by OscarJr; 10-11-2019, 08:20 PM.

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  • 'Stang
    replied
    I have the MM211 (transformer) and the auto-set doesn't work well with flux core wire. That's fine-I like to manually dial it in myself. I watched your video 4 times. The first thing I noticed when you pulled the trigger was your arc length, or CTWD. Your contact tip was way too far from the work. This will cause stubbing and burn back. Hold a shorter arc and see if this helps.

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  • jjohn76
    replied
    Have you tried the .045 dual shield on it yet? That might be alot to ask of the wire feeder moreso than the power supply- long term it might overwork the feeder motor. There are some .035 FCAW-G options that may work well. I set up an XMT 304 with suitcase feeder to run .035 FCAW-G, which the operator likeda lot (much better welder than I ever hope to be) for his farm work. I was paying for the first roll, so I bought the Blue Demon stuff... It ran very well at about 24V and 190 amps on C-25, but could probably still run well at colder settings. My Fabco Triple 7 datasheet .045 parameters are 23V/100A to 26V/200A for 100% CO2 all positions.
    Last edited by jjohn76; 10-11-2019, 06:12 PM.

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  • ryanjones2150
    replied
    I love dual shield wire. Especially .045. What gas are you planning to run that DS with?

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  • One1
    replied
    Yep. It’ll run it. This mig runs quite hot. hotter than my MM35/200 for sure and it’ll run it. I’d probably hit the duty cycle if i used it all day long, my use is intermittent through the day.

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  • ryanjones2150
    replied
    Because there are about 4 types of wire generally speaking, so I guess that would make the label so enormous it wouldn’t fit on the machine.

    You think that machine can run hot enough to burn some .045 dual shield? Not for very long if it will is my guess.

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  • Noel
    replied
    Originally posted by One1 View Post
    I’ve got my C25 and reg out, as well as hard wire so in the am I’m going to run it and I’m sure it’ll behave properly. It never says anywhere NOT to use Autoset with fluxcore. It says here are the settings for C25 and hardwire when using Autoset.
    I'm sure if they put a label saying "NOT" on everything that a guy might try it would be a pretty thick manual to read.

    With the apparent interest being a focus on the fact it doesn't, rather they why it doesn't, it reminds me we don't need to know why if we just accept that it doesn't and move along. I'm down with that.

    Miller made it simple and took the guess work and the thinking out of it so we didn't have to in a couple of applications. That's auto set. All applications would be a more expensive piece of equipment and probably wouldn't sell as a result in adding cost to the equipment for the market they are trying to sell to, those wanting o stick metal together cheaply and easily with a limited need for understanding besides does it hold together.

    https://www.youtube.com/watch?v=ZJSaNxtdWVs

    Lucky for us, it usually does.




















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  • One1
    replied
    Ran C25 and hardwire and didn’t have any issues. I want to run dual shield 045 with this and i was hoping to use Autoset. Not going to happen. The hardwire did great though on my temporary setup.




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  • BukitCase
    replied
    At last, a pic of the 211 itself; answers the un-answered question of WHICH 211 it is...
    My first 211(a) didn't mention flux core in the autoset section of the manual, sold that one to a friend when I found a half-price deal on a MM252/dual running gear/never used 30A spool gun - bit bulky for "portability" so I bought one of the MM211(d) inverter versions - built an "offroad" cart for that one.
    The autoset choices are GREATLY expanded on that one, INCLUDING a choice for flux core. Haven't tried it, and like Bob I wasn't as impressed by the newer autoset as I was with the ORIGINAL mm211 -

    The older 211 did OK on autoset with C25/.035 wire, but BOTH seem to run hot - I read somewhere that Miller had designed autoset for fillet welds, my old version worked pretty good if I just set the "thickness" knob one size smaller than what I was actually welding.

    First time I used the new one, it seemed to "spaz out" similar to 1's vid, haven't used it on autoset SINCE. Running in manual (again, usually about one size DOWN from the door chart) it runs fine.

    Since your 211(a) is definitely out of warranty, my recommendation would be to see if your autoset works OK with C25/hard wire - if so, lose the flux crap and get a couple screens if you MUST weld outside - if it DOESN'T run hard wire in autoset, then either use it in manual, find a new autoset board, or SELL it/trade it for something you like better.

    In my opinion, EITHER version of the mm211 isn't really "professional", but will do the job if you understand its limitations - (or, if there's times when you don't wanna lift a 300# welder :=) - I originally sold my first mm211 NOT because it didn't work, more because I got tired of "guessing" what those random numbers meant (AND that half-price hardly used MM252) ... Steve

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  • ryanjones2150
    replied
    I agree, it should be listed on the same label.

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  • One1
    replied
    I’ve got my C25 and reg out, as well as hard wire so in the am I’m going to run it and I’m sure it’ll behave properly. It never says anywhere NOT to use Autoset with fluxcore. It says here are the settings for C25 and hardwire when using Autoset.

    Attached Files

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  • ryanjones2150
    replied
    Sometimes I work in a shop that has a 211, but I’ve never really used the autoset much. I’ve tried it and adjusted from there. I think it’s close, but not for out of position.

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