Generator

There are two types of generator: Obsidian Generator and Liquid Generator. Most of the time, Obsidian Generators have two liquid generators in them, one for lava and one for water.

Liquid Generators
Liquid generators are used to create more water or lava than you originally have.

Essentially generators are based on the fact that when you drop either water or lava on the top of a block, which has no other blocks to it's sides, the water or lava will split, creating twice as much of the liquid as you used.

Water and lava have slightly different properties, lava flows much slower than water does, and so this restricts the way you can generate lava.

What you will need:
 * Bucket
 * Water or Lava
 * Dirt (or any other building block)

Backup Supply
When making a generator you should build in a backup supply of the liquid, so when you empty the bucket over your block, on one side of the splitting block the liquid will fall into a pool, and on the other side the liquid will fall into a backup supply. To make sure that you don't over flow your backup supply, build it two blocks high, as shown in the picture.

Rapid Generation
The easiest way of generating lots of a certain liquid at a time is to repeatedly empty and pick up the water on top of the splitting block. When you empy your bucket it, the liquid will split into 3 parts: The liquid dropping to the left, the liquid dropping to the right, and the liquid left on the surface of the splitting block. Immediately after emptying your bucket, you should click again, so as to pick up the liquid left on the surface of the splitting block, givin you another full bucket.

So effectively spamming just above the splitting block will generate a lot of liquid, and if you weren't quick enough with picking the water up, there will be some in your backup supply which you can pick up and start again with.

Lava & Water
There are some crucial differences between lava and water. Because lava is a lot more viscous than water, if you repeatedly click (spam click) above the splitting block, when trying to generate more, all you will do is empty it and pick it straight back up without it splitting, so you have to give it some time for it to split.

So when you empty the bucket of lava, wait half a second, and pick it up again. You can effectively do the "pick up, put down" in quick succession, with there being no time you need to wait for between the picking up of the lava, and the putting down of it.

Using the same design of generator for both liquids is fine, however you can slightly adapt it for lava to increase it's yield.

By getting rid of the splitting block and placing the bucket of lava on the right hand side of the top shelf (see picture) and then creating a backup supply beneath the new splitter, this acts as a double splitter, because when the lava overflows in the backup supply, and tips over the edge, it will split again, aswell as splitting after it falls off the top shelf.

Yield
If you have the space, you can increase the yield of each click by building a tower of bricks, so that when water falls either side of the primary splitting brick, each of those streams then gets split by another brick, and so on. This is useful for filling things like artificially built lakes.

The design is a simple pyramid, which has a space of no bricks between each layer, and a space between each bricks horizontally, as shown in the picture.

Obsidian Generator
As you may well know Obsidian is made by touching together water and lava. To facilitate in making obsidian, you can create two vats, one filled with water and the other lava.

Obisdian Generators have 7 parts to them:
 * Lava Vat
 * Water Vat
 * Lava Generator
 * Water Generator
 * Lava Tunnel
 * Water Tunnel
 * Ledge

Vats
The vats are big tanks of either water or lava, which are there for the purposes of storing a liquid, generally the lava vat is smaller than the water vat, because the lava to water ratio for creating obsidian is about 1:20, therefore you don't need as much

Liquid Generators
To fill the vats with water or lava, you will need liquid generators to facilitate in filling them and then refilling them when you have used up the water/lava.

Tunnels
Leading from each vat is tunnel which connects with it's opposite vat's tunnel, for example the lava tunnel will lead to the water tunnel. Because water flows quicker than lava, the water tunnel should be one block below (if you are mining from below) or above (if you are mining from above) the lava tunnel, this is so that the lava doesn't retreat all the way to it's vat, because the water will follow it.

To make the generating of obsidian easier, and decrease the chance of the liquids getting stuck, the tunnels should be two blocks thick, unlike the ones in the picture, which are only one block thick.

Some people like to use glass instead of bricks in their vat tunnels so they don't accidentally destroy any of them, flooding the world, or killing people. This is because you need a hammer to break glass, whereas you need to pickaxe to break other bricks.

Ledge
The ledge that you stand on should be able to access all along the tunnel length so that if the obsidian block does start moving up and down the tunnels, it is still accessible.

500px|Obsidian Generator