can i make a mini electric welder out of a disposable camera?
only for small joints not to be used, just as an experiment
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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
Otherwise a heavy high-amerage power-supply (not mains, that's asking for trouble)
L
Oct 16, 2009. 4:05 PMMolten Boron
says:
That raises an interesting point. Could you conceivably convert the high-voltage low-amperage (watts = watts) into high-amperage low-voltage?<br />
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
L
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
L
Jan 1, 2010. 10:22 AMstephenniall
says:
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 !
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 !
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!
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!
Oct 18, 2009. 7:57 PMWesley666
says:
If you want to make a small welder or what I have been wanting to do for a while but haven't got around to doing is making an auto-soldering iron. I had a dead UPS and they have a transformer in them that plugs into the wall and puts out 30 amps (ENOUGH TO KILL YOU SO BE CAREFUL!) and my plan was to make it like a MIG welder. A MIG welder has wire fed through the cable to the gun and when the trigger is pressed it feeds it out. I was going to do the same thing on a smaller scale with the UPS transformer and solder. You hook ground clamp up to the board in direct path with the joint as to not fry components and then press a button solder flows out and contact to solder. In theory this should work. If I get around to making this I will make an Instructable and you can check that out.
Oct 16, 2009. 3:28 PMjtobako
says:
It might weld foil, or just burn holes in it. Not much more.
You'd be surprised what you CAN CD weld<br /> http://ledhacks.com/power/battery_tab_welder.htm<br />
Oct 17, 2009. 6:52 PMjtobako
says:
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 : )
Oct 16, 2009. 6:13 PMorksecurity
says:
Very mini. If you want to weld the foil from bubblegum wrappers, maybe.
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.
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