DrMark666 Thank you Potto, that does work. F4.

DrMark666 I have a bank of 4 Li-ion batteries salvaged from laptops with a buck convertor. There's likely to be more later but these are plenty for now.

DrMark666 I think it depends what you put in it - it'll burn a graphite crucible & it likes ferrous stuff, it depends more on what makes it cut itself out, I find - needs to put enough power in but not too much, so size and convection etc matter more for max temp. The actual temp. of what you're heating is a bit irrelevant to this machine, it just puts energy in.

DrMark666 I imagine so; not actually tested raticidal properties myself but am sure they won't come back. You couldn't just leave it running, obviously - need a trigger.

DrMark666 The supplied 12v PSU runs the pump fan & display. You need a hefty 48v, 2kW power unit as well.:] I found a number of these via BG.

DrMark666 It's the voltage that needs to be right for the product - it'll take what current it needs (or try to :] ) - if the current required is too high it's the batteries that suffer (but that's only a few amps so it's fine).