I'm using the Mindcrack FTB modpack, and this includes Twilight Forest which gives the chance to find an Uncrafting Table which, when aforementioned Logic Matrix Programmer is inserted into the left-most square will give you a recipe that will grant you not only a Logic Matrix Programmer it will also give you a Logic Matrix and a Dark Iron Ingot.
Dark Iron ingots are used in a lot of recipes related to Factorization and are pretty hard to get otherwise, requiring you to get Nether Bricks from the Nether to craft the special bricks needed for the furnace that makes dark iron ingots.
I'm not sure it was intended to make Dark Iron so easily with one item from one particular mod, all you need is the aforementioned Logic Matrix Programmer, an Uncrafting Table, and an XP collection method and you'll have all the Dark Iron Ingots you'll ever want.
Mind you the Uncrafting Tables are in those Hollow Hills in the Twilight Forest, so you do need to take a bit of risk to go finding them due to the mobs that spawn there so it might be fairly well balanced but once you have the above mentioned set up you're basically rolling in Dark Iron Ingots.
I really think they should have balanced it a bit better for the Mindcrack FTB pack anyway, and I'm not sure I like having a recursively usable item that is for practical purposes infinite. Crafting in Minecraft has always about consuming one set of items to make another, and apart from sandstone blocks being able to make themselves over and over again in the same quantity, has never had any items that can be increased in number through duplication of an item.
Cheers ...
BrickVoid
Dark Iron ingots are used in a lot of recipes related to Factorization and are pretty hard to get otherwise, requiring you to get Nether Bricks from the Nether to craft the special bricks needed for the furnace that makes dark iron ingots.
I'm not sure it was intended to make Dark Iron so easily with one item from one particular mod, all you need is the aforementioned Logic Matrix Programmer, an Uncrafting Table, and an XP collection method and you'll have all the Dark Iron Ingots you'll ever want.
Mind you the Uncrafting Tables are in those Hollow Hills in the Twilight Forest, so you do need to take a bit of risk to go finding them due to the mobs that spawn there so it might be fairly well balanced but once you have the above mentioned set up you're basically rolling in Dark Iron Ingots.
I really think they should have balanced it a bit better for the Mindcrack FTB pack anyway, and I'm not sure I like having a recursively usable item that is for practical purposes infinite. Crafting in Minecraft has always about consuming one set of items to make another, and apart from sandstone blocks being able to make themselves over and over again in the same quantity, has never had any items that can be increased in number through duplication of an item.
Cheers ...
BrickVoid