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  #41  
Old 08-26-2012, 08:36 AM
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Quote:
Originally Posted by H80N View Post
MIG guns inspire a lot of personal preference and rabid brand loyalty... so expect some strong opinions...
For whatever reason I have grown to prefer Tweco for a conventional MIG gun , have several, and change them out for the application... All the manufacturers make a range of good quality guns, so it is up to you..

a note about the feed system.... the MM350P has a 4roll drive that allows for running a longer conventional gun with fewer feed issues..


I run a 25 foot Tweco #3 gun on my MM350P
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  #42  
Old 08-27-2012, 12:12 AM
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I've got to tell you guys a secret......I don't know if the fan on my 350P works, Or at least I've never pushed it to turn on.
Quote:
The 15ft Bernard Q300 that comes with the basic MM350P package should do everything that you need for your application as you have described it.....(both in duty cycle and durability)
I don't think I've run more than 100 lbs of wire through mine since I bought the the 350P. The Q300 is doing just fine and I've as yet meeded more length than what came with the package. I'm happy!
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  #43  
Old 08-27-2012, 05:03 AM
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I have a couple fo s-54 4 roll wire feeders, I like them.

It came with a Bernard gun, with the "slot" at the handle back,
for lead movement, the gun handle itself was curved. The
slot worked well when you needed to bend the torch into a corner.
The non-threaded tips need a bit of getting used to.

I changed one gun to a bernard style Tregakiss (I think) with
the ball at the back of the handle (where the leads enter).

This ball joint makes the handle "feel" or just plain work better IMHO.
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  #44  
Old 08-27-2012, 08:25 AM
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Default A question for you folks

Quote:
Originally Posted by derekpfeiffer View Post
I'd suggest upgrading. If you get a larger machine then you can spray transfer. I spray everything 3/16" on up. No splatter, lots faster, and deep penetrating, but then you'll have to go to a higher argon content gas. I use Moongone. Here's some 1/4" fishplates I welded last night.
Forgive my ignorance, but as a welder I make a pretty good Security Policeman. What exactly is "Spray Transfer"?
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  #45  
Old 08-27-2012, 09:00 AM
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Quote:
Originally Posted by Brian C. View Post
Forgive my ignorance, but as a welder I make a pretty good Security Policeman. What exactly is "Spray Transfer"?
Go to www.weldreality.com

Ed Craig has a good write up on it.

"Regular" mig is short arc. You see the end of the wire as a ball, flinging
off, into the weld puddle. Noisy crackle.

Spray (higher energy welding) will "pencil down" the end of the welding wire,
and the droplets flying off, into the puddle are in a "spray". Quiet spray.
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  #46  
Old 08-27-2012, 09:10 AM
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Quote:
Originally Posted by Brian C. View Post
Forgive my ignorance, but as a welder I make a pretty good Security Policeman. What exactly is "Spray Transfer"?
Brian

Here is a short video that illustrates the different transfer modes in MIG arc welding, including spray...

http://www.youtube.com/watch?v=vw5ntf3KbvE

this is how we learn...


wouldn't life be boring if we knew it all to begin with??

no anticipation.. no discovery??
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  #47  
Old 08-27-2012, 09:12 AM
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Doug and I were responding at the same time... guess more than one won't hurt..
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  #48  
Old 08-27-2012, 09:14 AM
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Quote:
Originally Posted by H80N View Post
this is how we learn...


no anticipation.. no discovery??
'Specially after your first try, when you stop welding, and find
both the gun and your glove is on fire......

It's kinda hot.....
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  #49  
Old 08-27-2012, 09:53 AM
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Here is another..

Mig Welding - Short Arc - pushing vs pulling vs Spray Transfer

http://www.youtube.com/watch?v=PI3pZ...eature=related

Minor Hijaak... it was a good question.. no harm done..with the sidetrack..
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