Thanks for the advice, I'll try some of it out on the weekend.. I'm not really sure what my welder is capable of.. its a BOC 250C.. perhaps its rebadged from something you guys might know..
You can see a photo of it here (and I have no idea what half of this stuff means :-) )
The specs I got from the BOC site are:
Supply voltage (V) 220 - 240 Frequency (Hz) 50/60 Phase 1 Rated primary current (A) 25 Supply fuse (recommended A) 32 Supplied primary plug (A) 15-Limited Output Primary cable length (m) 3 Welding current (Amps) 30 - 250 Duty cycle 30% @ 250A Output voltage 17 - 41.4 Voltage steps 16 Inductance settings 2 Polarity change for gasless wire Yes Remote interconnection cable lentght (m) n/a BOC gun/length (m) MG25i/4 Number of drive rolls 2 Wire feed speed (m/min) 0-18 Wire diameter (mm) Solid 0.6 - 1.0 Soft 0.8 - 1.0 Flux cored 0.8 - 1.2 Wire inch & auto wire load Yes Stitch/spot weld Yes
2T/4T switching Yes Burn back control Yes Isolated electronics Yes Fan on demand Yes Copper transformer Yes
I'll let you know how I go on the weekend..
Duncan. Adelaide, South Australia.