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In the Technic Pack, especially with BuildCraft, a common problem I have when setting stuff up is that I end up filling up a machine, and then it starts overflowing if the machine fills up, or is processing another material.

Is there any way to prevent this automatically? Or do I just have to manually regulate my redstone engines?

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I think this can be accomplished using Logistics Pipes. I'll have to test it though... –  Unionhawk Mar 15 '12 at 18:04
I know how to do this, but can't test it now. Will post an answer once I have access to Minecraft ASAP. –  Alexis King Mar 15 '12 at 21:29

4 Answers 4

up vote 8 down vote accepted

You can use obsidian pipes to redirect the outputs of chests. Take the following test rig:

I have filled the chest with buckets, as a sample:

If you pipe another item into the chest, it will simply pop out of the pipe, like so:

Fortunately, obsidian pipes do not connect to themselves, so you can use this to create a somewhat compact device to channel additional items elsewhere. Here's a possible system:

The iron pipes will keep the items from flowing directly into the new chests, and the obsidian pipes will pull in items that overflow.

You can also use more powerful engines of course, if you want to. This is all just an example.

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I'm accepting this answer, because it covers BuildCraft more generally, but I'm also going to post an answer that uses Logistics Pipes, as sub-mod of BuildCraft. –  Unionhawk Mar 17 '12 at 0:55

A green insertion pipe will do the trick, and, you can easily chain them to fill 20 chests or machines.

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I have found what I was looking for using the Logistics Pipes sub-mod: Using a supplier Logistics Pipe connected to the furnace, and a provider pipe connected to an ores chest, I can tell the supplier pipe to keep, for example, 64 iron ore in the top part of a furnace at all times, or the bottom part filled with coal at all times.

Granted, this solution requires that I have segregated furnaces, but, I think it's worth it.

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Of course, this will not work with Tekkit SMP, because Logistics Pipes are SSP only. –  Unionhawk Mar 17 '12 at 11:59
There are Logistics Pipes versions that are SMP compatible. –  Hubert Kario Nov 25 '12 at 16:23

Instead of iron pipes and engines, use gold pipes to make the item fly out at max speed. However, if your blocks are too close to each other, it will not work. For example I have a wall of furnaces and I was trying to have it insert an item it mines, directly into the furnace. I have also found that diamond pipes will work if you know exactly what you want going to a certain place.

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It's not clear how making items fly out of pipes at high speed can prevent items from coming out of pipes. Can you explain more how this is supposed to work? –  SevenSidedDie Aug 31 '13 at 19:33

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