Setting up my MM251 for Aluminum

[MtotheIKEo]

I pretty much decided that I cant afford to setup for aluminum right now. I want to do it right the first time, and using a spool gun seems to be the right way of doing it. I would only make 100, maybe 150 bucks welding his stuff up, and thats not gonna even dent the 7-800 for setting up

[fun4now]

wile i like the ideal of going all the way or not at all, keep in mind that the $100-150 would buy you the argon tank and liner, witch would alow for another small aluminum job at no $$ to you neaning the next $150 get's put in a cookie jar and befor ya know it ya got a spool gun.

JMHO

[jeffscarstrucks]

You might want to talk about renting the gun and tank as a learning tool to decide if your person wants to proceed. If he picked up the tab you would both find out if it is a worth while venture. Good Luck, JEFF

[fun4now]

good point he could probly rent the spool gun for about what it would be for the lineing.

[wireguy]

just went thru this a month ago. Bought the spool gun , use pure argon,
and make sure you get the correct contact tip that was the biggest problem.
The aluminum heats up and expands in the tip so you are drilling them out. There is a special tip for aluminum in the spool gun book or you can search on this site when I was on back in December and everyone helped me.
When I got the tip correct it worked fine never had another problem
good luck

[fun4now]

The aluminum heats up and expands in the tip so you are drilling them out

yep thats why i sugjested geting a tip 1 size bigger than the wire if he tryed it with his standerd gun. i supose you could do the same with the spool gun if they didnt have the aluminum tips in stock at the time you needed them.

[Tailshaft56]

Bare in mind it helps to keep the lead as straight as possible if you try the teflon liner. As for the spoolgun you might want to consider trading up to a MM210 as you can save a good chunk of money on a package deal.

Dennis

[Tailshaft56]

Belay the comments on the last half of my post. Somehow got confused and thought you had a MM175. Going from a 251 to 210 isn't much of " Trade Up ".

Dennis

[fun4now]

tailshaft56

i was thinking you must realy like your MM210 to say it was a trade up from the MM251

[MtotheIKEo]

Belay the comments on the last half of my post. Somehow got confused and thought you had a MM175. Going from a 251 to 210 isn't much of " Trade Up ".

Dennis

I had to read what you said a few times. Im putting off the idea for a while. I would not do enough aluminum to justify the cost.