You weren't wrong to buy the Tin Soldiers kit. It is expensive, but buy it once and be done. You don't save money by half assing it 3 times. Now you have room to grow.
If your welds are grey, they are either too hot, not enough gas coverage, or both. Use a Jazzy 10 cup or a Fupa 12, with a gas lens and about 20-25 cfh.
@@DieselRamcharger 20-25 cfh with a 10 cup?? Not. I weld stainless, mild steel, and aluminum, daily. Rule of thumb, is, double the cfh for the cup size. I run 35-40 cfh with a 16 cup and titanium and sometimes stainless. Depends what type of weld, too. A fillet weld will take less than and outside corner.
@@Rev2lateRacing Yeah, with mild steel, you sometimes can't help they graying. If your tungsten it getting oxidized, then you need more gas. Just see how the tungsten is looking, that helps, too.
Plain mild steel will ALWAYS weld like shit. Secondly, it looks like your practice box has mill scale on it. Thats a no no. Get yourself some wire wheels and dedicate them. Never use a mild steel wheel on stainless or aluminum and so forth. You want to use ER80SD2 1/16th inch filler wire. We use gas lens with a 6 or 10 cup. 12-15cfh {entire purpose of a gas lens is to SAVE gas by reducing turbulence} your tungsten should stick out 2-3 filler wire diameters from the cup. {i stack 3 pieces and tack em together to use as a gauge} Inside corners youll need a little longer, outside corners a little shorter. I run something like a 60 amp base and 1 amp per thousandth. so .090" wall plus 60 = 150ish. i use .060 - .120 wall tube all day so i leave my machine set at 169. When im welding .250" wall spuds i will turn the machine up. Practice feeding the wire using your thumb and first two fingers. {pinch feeding} When you use 1/16th wire youll have to feed alot when you got the heat up. MOTORSPORTS WELDERS PUMP THE PEDAL WITH EVERY DIP! No one is going to tell you this. We DO NOT WELD LIKE PIPELINERS! The machines are set hot, we use the pedal to maintain. Light your torch by just pressing the pedal past the high frequency switch {youll learn to feel it} you can use it like a flash light and just sort of sit and look around. find your groove, your filler, get lined up, floor it, dip, back off the pedal, advance one half a dimes distance {advance one radius not one diameter} punch it, feed in the wire, back out...rinse and repeat. You want to keep the wire inside the gas envelope at all times, or it will get grey crusties. You want to dip into the puddle not the arc. if you hear an electric crackling noise each time you dip, that is your filler wire passing through the arc. instead, feed it into the edge of the puddle. Dipping - Heat the puddle as it melts it will form into a kidney bean shape. fill the kidney bean with filler to make it a circle. let off the heat to let it cool and freeze before moving. its all timing and rhythm. Im a professional chassis builder.
