this was an answer on a differant thread but holds goodlinks & info
ok, lets look at a few things because this is an expensive investment and you don,t want to make a bad choice.
heres what ID strongly suggest you do BEFORE SPENDING a LARGE CHUNK OF MONEY most areas have welding classes available at local colleges in the evening for about $100-$200 TAKE THE CLASS, PLAY WITH THE EQUIPMENT BEFORE SPENDING YOUR MONEY..AND THEN
... stop by your local MILLER or LINCOLN dealer and ask a great deal of questions, LOTS OF QUESTIONS
read this old post first
http://crossedflags.com/modules.php...&t=23549&sid=ab0663694c114bbe3c75ebcce44182eb
the first thing youll need to do is REALISTICALLY decide what your going to be USING the welder for.
theres not much sence in buying a 350 amp welder if your mainly interested in welding sheet metal in body work and youll never weld anything heavier than 1/4" thick.
and anything less than a 140 amp is likely to prove disappointing and not up to the tasks at hand ,IF you MUST have the ability to do BOTH steel and aluminum,the better quality mig/or tig welders with an optional gas shield in the 180-250 amp range will handle 99% of anything youll ever need, but the basic stick welders will do almost everything in basic steel welding youll ever need.
if you want to weld aluminum and steel the basic stick welders are out of the running.
you can weld aluminum with the larger amp MIG units with a gas shield but aluminum is better welded with a tig unit in many cases
a basic stick welder will do about 60% of anything youll need to do on a car in this hobby, but its best on things like custom making transmission cross members and suspension brackets where the material thickness is in the 1/8"-1/4" range and mild steel is the material used
a good MIG with a gas shield is more flexable and better for body work and can do fine, thin precise work and anything the stick welder can do,(in the correct skilled hands) and is by far the easiest to learn how to use, the better migs can do aluminum, but require optional accessories and higher amps than steel as aluminum requires more heat AND usually AC current and frequency control
tig is significantly slower, but far more controlable, in that both the heat and material feed and placement of BOTH can be changed instantly by a skilled opperator.
first let me state IM no whare near an expert, and while I can stick things together so that they won,t ever come apart,and have been welding for over 35 years, I lack the skills some guys have to make welds look super smooth
Ive used a great deal of differant welders,
I prefer TIG ,welders, but they are needlessly expensive in many shops.
migs are GREAT!,easy to learn on and very versital.
stick welders will do almost all the basic welding, youll need to do and can be dirt cheap compared to the TIG or BETTER MIG units
suggestions, BUY THESE, THIS SEEMS TO BE A GREAT OPTION IN YOUR BUDGET
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=43550
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=46092
OTHER OPTIONS
STICK
http://www.welders-direct.com/merchant2/merchant.mv?Screen=PROD&Store_Code=WD&Product_Code=K1297
MIG
http://www.welders-direct.com/merchant2/merchant.mv?Screen=PROD&Store_Code=WD&Product_Code=907312
http://www.welders-direct.com/merchant2/merchant.mv?Screen=PROD&Store_Code=WD&Product_Code=907321
http://www.welders-direct.com/merch...e_Code=WD&Product_Code=907312&Category_Code=M
http://www.welders-direct.com/merch...e_Code=WD&Product_Code=907321&Category_Code=M
TIG
http://www.htpweld.com/products/tig_welders/tig201.html
http://www.welders-direct.com/merchant2/merchant.mv?Screen=PROD&Store_Code=WD&Product_Code=500425
http://www.welders-direct.com/merchant2/merchant.mv?Screen=PROD&Store_Code=WD&Product_Code=K2535-2