,030 or ,035 fluxcore for baby MIG?

I use .035 flux core in my WeldPac 100 , same output specs as yours . Flux core burns hotter than solid wire , so I don't use it for really thin stuff . Up to about 11ga it does pretty good , but anything over that it just doesn't have the amps for a decent weld .

For the thicker stuff I fire up the AC Tombstone .

Have you ever used .030 fluxcore? Did it burn hotter than .035?

Thanks, Bob

Never tried .030 , all I've used with this machine is .035 flux and .025/CO2 or C25 . I actually prefer solid wire , but a lot of my welding is done outside and when the shield gas blows away it makes for a really shitty weld .

Yeah, like when you forget to open the gas valve! "WTF - this weld sucks. Oh ... no gas!"

My changeover point is at 1/8" ... unless it's a small piece , then I might go 3/16" . And I use CO2 a lot more than the C25 .

Which unit ? The tombstone is 225 amps , the Weldpak is like 90 amps at 18 volts IIRC . Max OCV is 32 according to the pdf manual I just downloaded ...

I use the suggested settings on the inside of the door for a starting point . I've learned what settings work for the materials I usually use , fr'instance 11ga square tube with .035" flux core welds nicely on power setting 4 and about 3.5-4 on the speed control .