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can i make a mini electric welder out of a disposable camera? Answered

only for small joints not to be used, just as an experiment

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lemonie
lemonie

Best Answer 11 years ago

Welders need high current more than high voltage. A 12V car battery will happily weld stuff. These things are dangerous with e.g. metal watch-straps, screwdrivers etc.
Otherwise a heavy high-amerage power-supply (not mains, that's asking for trouble)

L

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sharlston
sharlston

Answer 11 years ago

how about drill batterys?

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stephenniall
stephenniall

Answer 11 years ago

You can But not very good .

I learnt this when  i was using a piece of pencil lead for an experiment and i welded a piece of wire to the battery !

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lemonie
lemonie

Answer 11 years ago

You might weld small stuff, but would risk damaging the batteries. If you're thinking about full size electric welders think around 50-100 amps (though what they actually use varies).

L

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Molten Boron
Molten Boron

Answer 11 years ago

That raises an interesting point. Could you conceivably convert the high-voltage low-amperage (watts = watts) into high-amperage low-voltage?<br />

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lemonie
lemonie

Answer 11 years ago

This is what electric welders do. Input up to 13A @ 240V, output maybe 100A, at maybe 30V (all rough). A big heavy transformer is the largest part of these devices.

L

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Molten Boron
Molten Boron

Answer 11 years ago

Badda-boom! Transformer-driven capacitor welding!

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nepheron
nepheron

11 years ago

I made one with a capacitor from a camera. I wired the capacitor up to a 12v wall adapter and wired the capacitor to two alligator clips. The wall adapter goes through a momentary switch before it charges the capacitor. This keeps the capacitor from over heating/ over charging.

It will "weld" constantly with hair-thin wire attached to one (the negative) alligator clip. The other clip attaches to whatever metal i weld on.

It works so-so for practical uses, but it makes the greatest toy ever!

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jtobako
jtobako

11 years ago

It might weld foil, or just burn holes in it.  Not much more.

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jtobako
jtobako

Answer 11 years ago

Not really.  The upgraded version sounds better, but the caps get expensive.  Most of the problem here is that the camera circuit is backwards-but I'm assuming anything that can blister my skin has a good chance of spot welding foil : )

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orksecurity
orksecurity

11 years ago

Very mini. If you want to weld the foil from bubblegum wrappers, maybe.

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steveastrouk
steveastrouk

11 years ago

You can use capacitor discharge to weld things, if the capacitors have a low enough internal resistance, because you can deliver a hell of a lot of current very fast. They ARE dangerous when they are run at high voltages.