You need only one arithmetic combinator for this task: "Red Science Packs * -2". Then you should connect smart inserter to arithmetic combinator's output and science pack storage simultaneously. Also, do not forget to set "<0" condition in your smart inserter. Example: 5 science ...

Great job, but I am sure you could make your display more compact, and as result more comfortable in using. According to my calculations it is possible to reduce amount of combinators, at least to (comb + const comb) x 39 + 5 comb + 2 comb per each display cell, or 44 + 2n (without const comb). But ...

Boogieman14 wrote:

This doesn't work in some corner cases (try to take items in output only from one side).

More precise version:

MORE PICTURES doesn't change what you're doing. You have no way of actually measuring power - just detecting when an accumulator is drained, which is a well-known technique. A useful thing, but very different from testing live power usage when your power storage is relatively full. Hmmm... yes, you...

That doesn't actually detect power usage. That's another accumulator near-empty detector, which is not the same thing. Just another idea: if you want to measure power usage you can measure difference between two consecutive measurements of accumulator's charge level: first moment: 56% in accumulato...

Power usage: https://forums.factorio.com/forum/viewtopic.php?p=93265#p93265. That doesn't actually detect power usage. That's another accumulator near-empty detector, which is not the same thing. Take a look on the "MORE PICTURES" section. The "drill idle" detector you mention i...

my questions are: Is there anything I have overlooked that will cause problems? Yes, you missed next thing: Even if you take all fuel from train, the last fuel entity always will be inside, because this entity is already partially consumed. Overall result will be next: 1) train arrive to the statio...

There's no way to check power usage right now. Power usage: https://forums.factorio.com/forum/viewtopic.php?p=93265#p93265. At this moment in my factory I have next emergency protocol: 1: if accomulator's level is less than 30% - disable all available beacons in base and outposts (beacon's energy u...

As I promised, here is the further improvement of this CPU: added RAM device and several new instructions. And prime numbers calculation. Let's start: There are many different algorithms for finding prime numbers, some of them are simple and slow, like this for (int i=2; i<N; ++i) { bool is_prime = ...

Hi guys, Recently several people had shared their combinator-based computers, now it is my turn:) The main goal was to create easily-extendeble CPU (probably with multithreading, but i am still working on this) with hig-performance and very flexible to adding/removing/changing its functionality. Sta...

So if it were to receive a -2 on green and 1 on red, the output would be -1, but with a -3 on green and a 1 on red it outputs 1? That's right. For me this is counter-intuitive to how combinators usually work (summing inputs first, then comparing), but what works, works I suppose. I think this behav...

Wow, my explanation is not so simple to understand, but somehow it was very easy to create this thing.

belt is jammed 0: 0 plate, -4 plate (-4 from constant), 0 plate input inserter put one item into the chest 1: 1 plate, -3 plate (-4 from constant + 1 from chest), 1 plate (1 from chest) combinator's input: -3 from green (doesn't affect the result because value should be greater than -3), 1 from red ...

Perhaps, my counter requires more explanation: Example: (moment: chest value, green value, red value) 0: 0 plate, -4 plate (-4 from constant), 0 plate input inserter put one item into the chest 1: 1 plate, -3 plate (-4 from constant + 1 from chest), 1 plate (1 from chest) combinator's input: -3 from...

Lupoviridae wrote:That's interesting then. When output "Each" is selected, is the output specific to the wire color? E.g. does the input from the red wire get output on the red output only?

No, the same output goes to both wires.

Anyone know how to build logistic circuit to calculate delta in fixed time interval? I would like to build system to check every X sec if value is rising or dropping. https://forums.factorio.com/forum/viewtopic.php?p=93265#p93265 Probably this can help. Logic unit calculates difference between prev...

@Xknight, wouldn't that output a -2 signal each time it performed a count? Have you tested this setup? Do you think that I can share setup that doesn't work? Setup was tested with one item (copper plate, 2x100 amount), two items (100 iron plates, 100 copper plates, simulatenously) and several small...

Hmmmm, very interesting...
It is possible to create such system that will automatically finds the amount of specified items in logistic network using binary search and dummy checking.

Another belt counter, but more compact: 1 combinators per 2 green inserters. It also can work with jammed belts. H4sIAAAAAAAA/9VYYW+bMBD9KxVfZyYwkC6qvD9STYiC01gCg4ypGqH89xmSNuDaxjjKsn5rCj7fvXf37o6ifijrPCsfUtRjygknuEV9T7MKI2+XtdwntMWM Y+aBpm7F85qi/h3FPxNwQH70MzmCgjCcjw/gEVgfjXVH8XvDcNv6nGW0bWrG/Rdc8r...

Is there a smarter / better way to control your factory storage with less than a single constant combinators (to set the max items) + 2 decider combinators for each items you want to control ? The way I set them up: - a Constant combinator (eg. 50 lamps) - a Storage chest (with lamps) - a decider c...