it dont matter what make or model welder you get really theres only 2 main rules to it
1 make sure its got more than 100 amps otherwise youd have better luck using a bic lighter
2 dont fook about with self flux cored wire and just use co2/argon mix gas
with the self fluxing stuff youll never get a clean weld as theres no regulation to it so youll get welds that look like gerbil turds for months and totaly dishearten yerself with the whole welding process and probably give up as most do
with the gas theres an easily cureable solution to its main downfall
if you use the little white cylinders available at hellfrauds or B&spew theyre gonna cost yer bout £15 a pop and would only last roughly 1 hour or so and the little toy regulator tap on the top of them is less use than a chocolate teapot
to cure this you just need a good mate that happens to be a landlord at the local watering hole and a decent regulator and some high pressure hose to connect it to the gubbins in the machine
personally i use a 20 odd yr old SIP migmate turbo 130 that ive tweaked to give up to 190 amps by using a bigger transformer and as low as 29 amps with an ickle transformer for delecate stuff ( at a push i can weld fray bentos pie tins if i need to )
to get maximum adjustment and versatility out of this rig i use .06 wire as its a lot more controllable on the thin stuff and its just a question of speeding the hell otu of it for anything up to 10mm thick
a suggestion while you learn to weld try making something of use for the welder such as a trolley so yer dont have to drag and lift the bugger evrywhere when you finally do begin with a progect such as a landy chassis
this will also boost your confidence in marking measuring and setting out ending up with what you want and something to show for your efforts rather than ending up with a mangled heap of sharp edges destined for the scrap yard
hope this helps
but i couldnt be bothered reading the entire thread arguments anorl