Distance of tip to Shroud?

[Toyoden]

Hi again, noticed in the tutorial that the tip where the wire comes out, actually protrudes beyond the end of the shroud? mine is recessed about 1/4", would this explain why I sometimes can't get that nice sizzle?
Thanks in advance
Waz (Toyoden)
Using .6 gas wire, on car roof, metal is thin as, I am welding 2mm metal to 1mm, and even though I have ground it nice and shiny, just doesn't run nicely, still working on settings, sheesh next welder I buy will have dials for Amps, either have High or Low, mine also has a 2nd switch that has 1 and 2 on it, any idea what this is, got the dial for wire speed.
Oh yeh, got distortion, my mistake for going too long, not a bad distortion, have fixed it, but a valuable lesson learnt. Machine sputters, not sizzle, seems like a lot of gas comes out but there is just not enough wire, tried adjusting speed then get burn thru . Getting good at filling holes

 

[malcolm]

It's my torch that's wrong. I've never managed to find a tip to fit my replacement torch correctly. The original torch is back on at the moment with the tip recessed in the shroud by about 4-5mm.

The extra switch is handy. It gives a halfway setting between the two main settings. On my welder the order of increasing amps is:
1min -> 1max -> 2min -> 2max. On the Charke 90 I tried the order was 1min -> 2min -> 1max -> 2max. Guess it depends on the welder.

Spluttering not sizzling is probably the wire speed. If's it's too low it will form a big red ball of weld that'll get stuck to the tip. Too high and the torch will feel like it's pushing off the steel. The sweet spot inbetween is quite narrow. You'll need to reduce wire speed with decreasing current.

 

[Toyoden]

Thanks Malcolm, don't have to get the grinder out and reduce the size of the shroud lol.
Will try and get some sheetmetal tomorrow, zincaneel, which is what is sold for car repair over here, and practice settings, vertical and horiizontal, big red ball, hmmm sounds familiar.
Will let you know how I go, if you see a flash and what looks like a space shuttle taking off, it's only my welder being launched into oblivion

 

[Ugotit]

Quick note

Hi Guys
I'm still new with this MIG STUFF and I'm using a Clarke 180 / 220 volt Unit.
Guess I have learnt over the years is to do tests and not on the real work I'm working on. When my welder arrived last week I went straight to the sheet metal shop and got a bunch of scrap metal. 3/16 PLATE, 22,20,18,16,14 GAUGE sheet metal scrap free from there waste bin. Went home and started do test on one gauge at a time and watching my settings,and wire feed. Why screw up your work when you can screw up scrap and learn. So far with four tries I got the settings right for the 3/16. Not so lucky with the 22 gauge at my lowest setting and lowest wire speed blew hole as soon as I started to test.. Just using flux wire .035 when I get some dollars will get a roll of .023 and try the lighter gauge again. Didnt try the other gauges yet, no time. Test test test before you go to the real work, is my opinion for what it's worth