Hello fellow 'iblers! Today i'm going to teach you, how to build a Welder with plain Water and Salt, yes you did read it right! WATER AND SALT! And there is even Historical
reference to this kind of welder.
Check out the Video:
Despite from the Video name, I'm not Mexican and I don't speak Spanish!
Step 1: High Amperage! Careful Is Just the Beginning!
This project uses High Amperage and High Voltage and it's mostly lethal if not handed carefully, allways wear gloves and shoes, don't operate exposed parts or not securely insulated components, If you need to change the positions of the cables inside the water, unplug it first. Use all the recommended welding equipment when working on this project incluing: Welding Glasses or Mask, Leather Gloves, Leather clothes and an insulated surface. Don't forget to be dry (always dry your hands if you change anything on the water).
Step 2: Materials
10m of AWG #7 (10mm) wire
20L of water
1Kg of salt
6013 or 6011 Welding rods
10m of AWG #5 - #7
20L of water
1Kg of salt
2 Insulated Pliers
6013 Welding rods
Step 3: Cut the Wires
OK, first we are going to need 3 pieces of wire, take the 10m piece and cut it in half, next take one of these half's and cut in half again.
Now we got 3 pieces of wire:
1 5m piece
2 2,5m piece
Take the 5m piece, scrape about 1,5cm on each side of the cable, it will be used as the ground wire.
Take the 2,5m cable and scrape 1,5cm on one end and 20cm on the other end, these will be our positive wire.
Step 4: Install the Contacts
Now Install the Electrodes holder on the 1,5cm end of the 2,5m cable, and the earth clamp on one of the 1,5cm end of the 5m cable.
Step 5: All Goes in the Water!
Fill the 20l gallon with around 15l of water, put the 20cm end of the 2,5m cables in the water and put something on the bottom to hold them submerged and straight. Pour around 500g to 800g of salt on the water.
The salty water will work as a variable resistor, powering the AMPs up based on Electrolysis
Step 6: Plug and Arc
To turn the power on, Attach the 5m cable on the neutral line of your wall plug and the 2,5cm cable on the Positive line, DON'T PUT THEM AS YOU WISH, YOU MUST KNOW WHICH ONE IS THE HOT WIRE AND WHICH ONE IS THE GROUND WIRE. Put the 6013 electrode on the electrodes holder and try striking an arc, if the amps are too low, put the two cables nearer inside the water, if the amps are too high, space them from one another. DON'T FORGET TO UNPLUG THE WIRES BEFORE ADJUSTING THE CABLES.
Step 7: Why It Works?
OK, let's go to the Science of the thing!
Take a look at the table, as you see, water is very resistant, so plain water will not allow any current being draw, the objective here is to lower the resistance of water until you can draw current from it, and as you see it varies on cm, so as much as you take them apart, more resistance is added, if you put them together less resistance is added.
[note] Elaborate a simple equation later.[/note]