First, Ron has valid points. Look past the sarcasm and try to learn something.
Let me see if I can give you some good advice...
downhillracer said:
The question is pretty damn simple if ya ask me. Will a 110v flux core welder, weld metal up to 3/16". It is pretty much yes or no.
Almost nothing about welding is that black and white. Can a 110v flux core welder throw down an adequate bead on 3/16? Sure, it can. BUT -- as you mentioned, you will be maxing out the duty cycle. Joint prep will be crucial on 3/16 material. And flux core sucks. I used it for years... now that I have gas, I dont want to touch the stuff. I only use it when its appropriate for the application (i.e. welding outside when windy). You have already stated the downsides... and I think they are pretty significant. Welding is hard enough as it is, the more you can do to make it easier on yourself the better fabricator you will be. I have fabricated enough to know that shitty equipment is frustrating and makes for shitty products.
You are no different than than a ton of people who want to start fabbing -- everyone ALWAYS asks if they can get away with a cheap 110 machine. And do you know what the answer ALWAYS is? Get a quality 220 unit, period. If you weld enough, you will be exceeding the limits of your welder and your welds will likely suffer as a result.
Spend the $550 for a hobart 187 - its (imho) the best bang for your buck. All the power and (almost) all the features of the nicer more expensive 220 machines without all the cost. Most people recommend what they have, I dont have a HH187, so I am trying to just make a recommendation based on what I am hearing - not what I own.
Do yourself a favor, dont skimp.