Fractional Splitter
Posted: Thu Jan 04, 2018 11:52 pm
Hi,
I want to split a belt that ist 75/98 full of copper plates to have the perfect input for a factory producing one belt of green circuits. Oddly I didn't want to use mechanical splitting so I went for circuit based splitting instead.
Here is a screenshot showing the setup working for a ratio of 1/3 : 2/3 (because that can easily be verified using belts).
You can set the fraction you want in the constant combinators. There is one issue, though:
- the version to the north works flawlessly but never resets the internal counters, thus it will overflow at some time (assuming 1/3 and a limit of 2^31 (is this correct?) it will take about one year which might be considered reasonable (for this ratio))
- the version to the south resets, but it does not work for all prossible fractions. For example 10/30 is fine but 1/3 is not. This is probably somehow related to latency issues in the design of the circuits, but I don't know how to fix them. Does somebody have an idea?
How does it work:
Counter A is incremented by the value of the numerator for each tick. Counter B is increased by the value of the denominator each time B < A. One Belt only runs if B is increased, the other belt runs if B is not increased.
And here is the blueprint (0.16.14-1).
Once with a creative mode mod (https://mods.factorio.com/mods/Chrisgbk ... e-mode-fix):
And once without:
I want to split a belt that ist 75/98 full of copper plates to have the perfect input for a factory producing one belt of green circuits. Oddly I didn't want to use mechanical splitting so I went for circuit based splitting instead.
Here is a screenshot showing the setup working for a ratio of 1/3 : 2/3 (because that can easily be verified using belts).
- fractional splitter.JPG (134.03 KiB) Viewed 2093 times
- the version to the north works flawlessly but never resets the internal counters, thus it will overflow at some time (assuming 1/3 and a limit of 2^31 (is this correct?) it will take about one year which might be considered reasonable (for this ratio))
- the version to the south resets, but it does not work for all prossible fractions. For example 10/30 is fine but 1/3 is not. This is probably somehow related to latency issues in the design of the circuits, but I don't know how to fix them. Does somebody have an idea?
How does it work:
Counter A is incremented by the value of the numerator for each tick. Counter B is increased by the value of the denominator each time B < A. One Belt only runs if B is increased, the other belt runs if B is not increased.
And here is the blueprint (0.16.14-1).
Once with a creative mode mod (https://mods.factorio.com/mods/Chrisgbk ... e-mode-fix):
Code: Select all
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