Hi,
I'm wondering if it would be possible to make some kind of "trade machine" that trades items fairly, meaning in a 1-1 ratio.
General setup:
2 conveyors bringing one type of item each, let's say wood and coal. The trade machine should than only allow the coal to proceed, if there is also [Edit:] wood and vice versa.
Ideally, it should be fair, so that each arriving coal let's exactly one wood through and vice versa.
I played around with combinators a bit, but couldn't really find a good solution.
Or maybe I should just make a custom assembly machine for that? But then I would have to make one for each set of items, I guess?
exchange setup
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Greybeard_LXI
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Re: exchange setup
Load the items into a pair of chests with inserters for output. Then connect the chest to the opposite inserter with a green wire and the condition "If anything > 0". Also set the stack size override on the inserter to 1.
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They say a picture is worth a thousand words. Here is a blue print string so you can create your own picture.
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Re: exchange setup
Ah, so simple, now I'm a little mad, I didn't think of it myself 
Thanks!
Thanks!