[TheForge] MIG Welding question

[Jeremy Seip]

Not quite a blacksmithing project, but if I do a good job here my new wife 
is more likely to let me set up a full shop. :-)
I'm fabricating a large trellis for a climbing vine, the plan calls for a 
frame of 3/4" square tubing lined every 4 inches by a 3/8" ring of  wire 
(about clothes-hanger wire thickness).   Eventually a mesh will be wroven 
across the trellis through these rings to form the actual climbing 
surface.The only welder I have access to is a Lincon MIGPack 100.
Bad ascii art:
            o                  o              o               o         Rings
       =================================  Tubing
The problem is while I've taken classes on oxy-acetylene and stick welding, 
I'm a newbi with MIG, and I'm destroying about every 5th ring by burning a 
big part of it away.  So far I've played with the wire feed speed and the 
amperage (currently amperage "C" and feed speed of 3 for those who know 
this welder) but I'm still having problems with the relationship between 
these two.  A second issue is how best to lay the bead. I'm working on a 
spot-like weld, starting the bead a little bit away from the ring and then 
moving the puddle against the ring and hopefully fusing everything together 
before the ring melts.

On the plus side I was able to justify getting a Dewalt Angle grinder to 
grind off the bumps.

Anyway, any advice other than "It can't be done like that, what were you 
thinking?" would be greatly appreciated.
Thanks!
         Jeremy

--
Jeremy Seip
jseip@earthlink.net
http://www.home.earthlink.net/~jseip