Bought a Miller Multimatic 200

   / Bought a Miller Multimatic 200
  • Thread Starter
#41  
?I always believed that to get optimal results; stainless wire brush

I've been told that you have to buy a NEW stainless steel wirebrush, write ALUMINUM ONLY on it, and of course use it for Aluminum ONLY. They say that if the brush has any "steel dust" on it you will contaminate your aluminum that you are trying to clean. And end up with a crappy weld.
 
   / Bought a Miller Multimatic 200 #42  
I try not to take a wire brush to aluminum anymore, unless its complete crud or something of that nature.
All the aluminum I have, has been outside for 30 + years. :eek:
 

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   / Bought a Miller Multimatic 200 #43  
I try not to take a wire brush to aluminum anymore, unless its complete crud or something of that nature. I wipe it with acetone, crank up the amps to blast away the oxide layer and then back off a bit and get at it quick. Quick feed while watching everything going on and giddy up and go.

View attachment 356348
That is sure purty! and showing off too! :laughing: I hope someday I can post a pic like that.
 
   / Bought a Miller Multimatic 200 #44  
Before I unbox it and crank it up?. Does anybody have experience with this machine? Should I go ahead and make it a "used" machine or return it, and in that case what is a better portable?

I've been using a 120v Miller 135 for 8 years and it suits about 90% of my needs. When it's windy outside I need a stick welder. Sometimes I have to weld thicker than 1/4". I do not weld commercially, only for personal projects. 30% Duty cycle is more than adequate. Portability is important. I have no useful TIG experience except screwing around once with no instruction. I bought the spoolgun too but haven't bought anything else for Aluminum yet.

Would be great to hear from anyone who is UNHAPPY with this machine as a MIG or a stick, NOT just by reading the specs or reading on the internet but actual use.

Genuine experience SPECIFICALLY with regard to the MultiMatic 200 on steel projects (less than 3/8" steel) will help the most.

I have one. Haven't used the TIG yet but I can comment on the stick and MIG (fluxcore). I bought the 200 and sold a Miller Passport and Miller Maxstar 150STH on the assumption that one machine would cover all those bases. As noted, with the exception of TIG which I haven't done yet, the MIG and stick are virtually identical in performance and a bit easier to set up on the MIG side. I haven't put much wire/rod through it yet but I am very happy with it so far. It is MUCH lighter than the Passport and only about double the weight of the Maxstar.

The capability of the MIG side (used only fluxcore so far) is essentially identical to the Passport which itself is the same or a bit better than the Miller212 as I recall. The dual voltage is very handy. I run it off a dryer outlet or 6000W generator for 220. The MIG gun on the 200 is a Bernard and much nicer than the M10 on the Passport.

The stick side is really almost identical to the Maxstar 150 though it is not high frequency start.

It also has a spool gun so has the aluminum capability of the newer style Passport (my Passport was the older one so I gained Al capability).

I haven't had a chance to use my set up in a few months as I don't have a heated welding space but I have been very pleased with the quality of construction, design and welding so far. I got the various machines I have had because I use the welders in two different locations so portability is important. I also don't always have 220 so the dual voltage was a big factor as well.

My only complaint about the Multimatic is that the leads and gun don't fit easily into a side pocket like they did on the Passport. They strap down to the outside of the case instead and are therefore a bit vulnerable to snag on things. Small but annoying issue. The only other downside is the substantial cost. For me it was easy because I was able to sell the other two welders for enough that I got the whole Multimatic kit with TIG and spool gun for less money than I sold the others for but it certainly is not a cheap set up.
 
   / Bought a Miller Multimatic 200 #46  
Mike,

Any possibility of a new thread and maybe a you tube vid on your technique for that weld?

Sent from my iPhone 5s 64Gb using TractorByNet
 
   / Bought a Miller Multimatic 200 #47  
I've been told that you have to buy a NEW stainless steel wirebrush, write ALUMINUM ONLY on it, and of course use it for Aluminum ONLY. They say that if the brush has any "steel dust" on it you will contaminate your aluminum that you are trying to clean. And end up with a crappy weld.

We would paint the hub of the wire wheel orange for SS only, and green for Al.
 
   / Bought a Miller Multimatic 200
  • Thread Starter
#48  
Here's the first few welds with the new MultiMatic 200.
I've never had a welder where you could set the voltage and wire speed so precisely. I'm going to like this machine.
Mig using .030 wire and 75/25 gas on .065" thick steel. Ended up using 16.5v and 150WFS of the fillet welds.

356405d1390445988-bought-miller-multimatic-200-mm200weld.jpg
 

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   / Bought a Miller Multimatic 200 #49  
Here's the first few welds with the new MultiMatic 200.
I've never had a welder where you could set the voltage and wire speed so precisely. I'm going to like this machine.
Mig using .030 wire and 75/25 gas on .065" thick steel. Ended up using 16.5v and 150WFS of the fillet welds.

356405d1390445988-bought-miller-multimatic-200-mm200weld.jpg

Hey looks good to me... especially pretty much right out of the box. I want one. I know I am no help to your quest but it seems the MM 200 found a home? Well done.
 
   / Bought a Miller Multimatic 200 #50  
I have one and teh machine is AMAZING - can't say enough good about it. Great Article in FABRICATINGS METALWORKING. A guy in a business bought on and tel how he uses it all over the place in the field, all all types of welding work.

For me I never touched a welder and I bought the spool gun. 30 minutes later I was welding like a "pro". After YEARS of people crying how hard welding aluminum is and what a premium people charge to weld it. I got a price on big aluminum job and the prices they wee asking were crazy high. Let's put it this way, I bought all the material, bought the welder, did the job myself, and I still made money on the job - PLUS I got a free welder out of it. That's how high the "welders" wanted to do the job.

I am still stunned that a machine that size can weld what it does. AND to so stick, tig, mig to boot.

Welding with the spool gun on aluminum makes me want to do everything in aluminum now because of the weight.
 
   / Bought a Miller Multimatic 200
  • Thread Starter
#51  
I bought the spoolgun but didn't get an argon tank yet. Thanks for the note, I'm looking fwd to Aluminum.
 
   / Bought a Miller Multimatic 200 #52  
Mike,

Any possibility of a new thread and maybe a you tube vid on your technique for that weld?

Sent from my iPhone 5s 64Gb using TractorByNet

Thanks bud, I dont know how to make you tube vids but in the future I can get more involved with explaining things clearly. It really comes down to hood time and being able to multitask, meaning going off feeling while your scanning everything thats going on. Hard to explain what is going on while using a foot, both hands, and scanning bead width, spacing, feeding, torch movement and feathering the pedal as your base metal gets hotter and all at a rapid rate. Welding is one of those things that really needs tons of time to become second nature. And even then its frustrating LOL. Dedication always wins in the long run. If its in your blood, good enough sucks. To a point on some projects of coarse. So in short my technique at best is just basically being able to multi focus, but second nature helps play a big role in that as well. Thanks bud! Cheers!
 
   / Bought a Miller Multimatic 200 #53  
Thanks bud, I dont know how to make you tube vids but in the future I can get more involved with explaining things clearly. It really comes down to hood time and being able to multitask, meaning going off feeling while your scanning everything thats going on. Hard to explain what is going on while using a foot, both hands, and scanning bead width, spacing, feeding, torch movement and feathering the pedal as your base metal gets hotter and all at a rapid rate. Welding is one of those things that really needs tons of time to become second nature. And even then its frustrating LOL. Dedication always wins in the long run. If its in your blood, good enough sucks. To a point on some projects of coarse. So in short my technique at best is just basically being able to multi focus, but second nature helps play a big role in that as well. Thanks bud! Cheers!

Oh my mistake! Thought it looked too good to be a spool gun weld lol... Still nice though

Sent from my iPhone 5s 64Gb using TractorByNet
 
   / Bought a Miller Multimatic 200
  • Thread Starter
#54  
Activity looks a little slow on the forum, heres some reading for ya TBN.

I've had this machine for 3 years now. It's been a GREAT machine. I've Migged, Sticked, Tigged. It's been in/out of y truck so many times I almost wish I had 2 welders instead of carrying this one around. For the price of it I coulda bought 2 chinese welders, (and leave em be) but that idea didn't come at the right time (when the Miller salesman was workin' me over). But I do like this welder. I use it mostly on power from an 8,000W generator.

Here's a recent project (ripper claw). Here's trying stick-welding with it.

I've migged continuously at 2/3 power for 20 minutes straight, it never shut down. Duty-cycle thread HERE. The dreaded 20% duty-cycle that screws up your whole day, ya know, toe-tapping waste of time, a legend around even before the internet (at least with this 20% machine). :laughing::laughing::laughing: I suppose someone could get it to shutdown, but then they'd have to wear that event as a badge of honor on forums for the next 10 years or it wouldn't be worth it. :laughing::laughing::laughing:

I've looked around on the internet for credible tales of modern quality eqpt doing the duty-cycle shutdown thing and they don't seem to exist. I know some of you folks argue vociferously that 20% is not enough, but real evidence just doesn't appear in the fossil record.

Maybe I'm no good at google though. I hate to see new welders waste money right out of the gate assuming 20% duty cycle is going to be insufficient. So please, internet welding experts, if you want to disagree with this, please PROVE it for your fellow TBN member. Provide links to credible accounts, that are in line with what a normal TBN member might do with a welder. Not some pie-in-the sky welding story where you were riding the carriage of a pile-driver up and down on 60mph winds on a drill rig in the arctic ocean, but in reality you were plugged into a worn out 15A breaker and you kept having to go down into the basement and reset it. :D Plus this is a new era - its our duty expose fake news! :thumbsup:

In any case be sure that spending real dollars for duty-cycle beyond 20% is just "extra money" cuz you ain't gettin' much to show for it. I've been told that if there's duty-cycle to worry about ----> it's in welding Aluminum. I have not yet tried welding aluminum, so have zero experience to report. I have the spoolgun but don't have another bottle for the gas (yet).

Heres some pics of how I deal with the portability.

488557d1479682057-bought-miller-multimatic-200-a-multimatic200_cables_hoses-jpg


I added a loop of webbing with a squeeze buckle (from a game camera strap)

488558d1479682057-bought-miller-multimatic-200-a-multimatic200_cpc-jpg


Added CPC quick-disconnect couplings to the gas hoses. 1/4" size for the Ar/CO2; and 5/16" size for the TIG nitiogen. The short side from the regulator is just "open" because I can purge it easily. The side that connects to the welder has a "shutoff" that closes when you disconnect, so the hose holds whatever gas was in it last, and you don't need to purge it. I like these connectors.

488559d1479682057-bought-miller-multimatic-200-a-multimatic200_cutter-jpg


Added a captive wire clipper that can't escape like its predecessors.

Then some fellers on TBN talked me into getting the TIG kit that was a whole lot more FUN! Here's a special fitting I made with the TIG (low pressure only)

460825d1457929985-multiprocess-just-get-better-mig-fitting1-jpg
 

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   / Bought a Miller Multimatic 200 #55  
real quick, tell us more about the CPC fittings (what type and kind). Would love to have that for my mig / aluminum spool machine.

Not sure what your build was for the TIG kit, any explanation?
 
   / Bought a Miller Multimatic 200
  • Thread Starter
#56  
There are many different versions available elsewhere, but these are the ones I used. These are more expensive because they have Viton seals (internal) for gasoline. I doubt the seal material makes any difference for welding gases but you can find them elsewhere for less. Search for CPC Quick Disconnect Coupling.

The 6mm fits the smaller 1/4" hose, and the 8mm fits the bigger 5/16" hose. 100-0100 and 100-0106.. I didn't use a clamp and it holds pressure for weeks.

For my TIG kit --- I just bought the Miller Multimatic 200 TIG Torch Contractor Kit wth Foot Control (301287) on eBay
 
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   / Bought a Miller Multimatic 200 #57  
Sodo, I have the same Multimatic and also love it. Haven't been as active welding as you have but I find it extremely convenient and capable of more than I know how to do. I have the TIG set up but haven't had a chance to use it. Mostly using MIG and stick for repairs.
 
   / Bought a Miller Multimatic 200
  • Thread Starter
#58  
Island, you know I had fun with the TIG. Gotta have a project though, that's where you get motivated (thats how it works with me ;) ).

I have one and teh machine is AMAZING - can't say enough good about it. Great Article in FABRICATINGS METALWORKING. A guy in a business bought on and tel how he uses it all over the place in the field, all all types of welding work.

For me I never touched a welder and I bought the spool gun. 30 minutes later I was welding like a "pro". After YEARS of people crying how hard welding aluminum is and what a premium people charge to weld it. I got a price on big aluminum job and the prices they wee asking were crazy high. Let's put it this way, I bought all the material, bought the welder, did the job myself, and I still made money on the job - PLUS I got a free welder out of it. That's how high the "welders" wanted to do the job.

I am still stunned that a machine that size can weld what it does. AND to so stick, tig, mig to boot.

Welding with the spool gun on aluminum makes me want to do everything in aluminum now because of the weight.

Cat_Driver, can you tell me more about running the spool gun with Aluminum? I have the Spoolmate100, but haven't opened the box yet. I'm currently planning a project that could benefit from Aluminum sq. tubing construction.

How thick are you welding with the MultiMatic200? With 2"x2" sq tube, whats the max thickness do you think can be welded if preheated? And without preheat? Got any pics?
 
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   / Bought a Miller Multimatic 200 #59  
I'm in the same boat, Sodo... I bought the SpoolMate100 as part of a package deal with my Miller 211 and it is still in an unopened box as well. Haven't played with aluminum yet. Eventually want to make a railing.
 

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