upgrade?

Lincoln and Miller both make "suitcase" wire feed cabinets that can operate from Constant Current power sources. The better grade have gas solenoids for running solid wire and dual-shield. They are no cheap, but do work well.

They are very common on construction sites for running flux-core wire from stick welders.

Lincoln LN-25

Miller 8-RC and 12-RC

A less costly option is a Readywelder Spoolgun. They operate the same way as the larger suitcase welders, but cost a lot less.

You are limited to small 2 lb. spools, but I have had one for going on

Readywelder Model 10250

I have a hobart handler 135 115v and I find that it is a good wire feeder/welder for matl up to 1/4 inch. However I find it doesn't have the heat for anything thicker. Now like Ernie said there are suitcase feeders out there that work well on CC welders. I bought a used Hobart Hefty CC/CV suitcase with a gas solenoid, powerd by a Lincoln Ranger 8, I'm running .045 flux core and it works really well. With some weld prep on the thicker plates (5/8-1") I get good penetration and fusion with only 200 amps, oh ya and some preheat too. I try not to do 1" plate too often as the # of passes gets a little crazy.

These wire feeders are not cheap ($2300 CDN) but if you can find a good used one at a flee market or through a welding supply/repair shop you could save some money there. Mine was 6-7 y/old but had never been used and I paid $1000 for it.

Your other option is to use your syncrowave as a stick welder. With 250 amps available you can burn 5/32 jet rod to weld 1/2 inch and up.

suggestions?