How do I prevent quality nutrients being used as biochamber fuel?

[kaijyuu]

I'm making legendary biochambers and one of the ingredients is nutrients. Sometimes they stick in the quality nutrients in the fuel slot, wasting it... Any setups that prevent this?

[weareryan]

Use a filtered inserter for the legendary nutrients. Wire it to the assembler. Read the assembler contents and only enable your legendary when theer are already normal nutrients in the assembler.

[mmmPI]

I'm using this too, but it's not 100 foolproof i think, or i messed up my logic somewhere, it seem to me that it can still occur that the nutrient serving as fuel spoil while the nutrient as ingredient is still fresh, and in such case ,the quality nutrient may be inseted as fuel.

There are suggestions for "reading fuel" , which i +1 for this particular use vase.

[kaijyuu]

I see no way to get what's in the fuel slot into the circuit network. "Read contents" doesn't include it.

[mmmPI]

There is no way to read fuel directly, the complicated way is to use a memory cell and count the spoilage out, and subtract to the nutrient you placed, it's overly complicated imo, so i'm using the approach mentionned by weareyan when i need to

[kaijyuu]

Ah I think I misunderstood weareyan. I assumed by "assembler" they meant "biochamber". I guess instead they meant they use an assembler nearby to create nutrients and feed it directly to the biochamber?

I "solved" gleba by using nigh 100% logistic bots, so there are feeder requester chests. The normal nutrients one is already separate from the quality one, and the normal one is filled with fresh nutrients immediately. I could hook the quality ingredients inserter up to the normal nutrients chest and only have it work when nutrients are there, as extra protection. I think that's identical.

[EustaceCS]

viewtopic.php?f=6&t=120645 seems to be the right suggestion theme.

Actually... if you're OK with some time loss, there's way easier way.
Since recipes don't accept components below their selected Quality, use two different inserters for different quality nutrients and always activate fuel one first. One by one, never together.
As soon as spoilage removal inserter activities, activate them one by one one extra time.
And then each time crafting finishes.
Bam, case (kinda) closed.

[mmmPI]

The normal nutrients one is already separate from the quality one, and the normal one is filled with fresh nutrients immediately. I could hook the quality ingredients inserter up to the normal nutrients chest and only have it work when nutrients are there, as extra protection. I think that's identical.

You could, that would work similarly, but it's still not 100% safe. Because it can happen that the fuel spoil, and before it is replenished, while there is low quality nutrient as ingredient and in the chest, the inserter placing quality nutrient for ingredient may swing once.

There is a suggestion to literally "read fuel in biochamber" :

viewtopic.php?p=628723#p628723

Actually... if you're OK with some time loss, there's way easier way.
Since recipes don't accept components below their selected Quality, use two different inserters for different quality nutrients and always activate fuel one first. One by one, never together.
As soon as spoilage removal inserter activities, activate them one by one one extra time.
And then each time crafting finishes.
Bam, case (kinda) closed.

You assumed nothing will ever spoil in between the 2 swing, i think similarly this isn't 100% safe, if the fuel inserter swing once, "before" the other, . Because if you insert "almost spoiled" fuel, and it turn spoilage right as placed in the biochamber, or 1 tick after, then the second inserter will put quality nutrient in the fuel slot.

[EustaceCS]

You assumed nothing will ever spoil in between the 2 swing,

That's... another can of worms which has been opened somewhere else.
In this specific case, we can only beg for mercy here: viewtopic.php?f=18&t=122236&p=642927&hi ... ng#p642927
And/or level proficiency with wiring further, and/or exercise frugalty with spoilables.

As I'm not that familiar with wirings (and, specifically, a list of triggers usable to send for controlling this setup).
But it's safe to assume that with enough determination (and - praise Kovarex! - free red/green wires) - even this double trouble is pretty much solve'able.

(this theme specifically assumes that bajillions of produce are not a problem since people which are capable of barfing hundreds of Legendary biochambers are probably having a solution for this burned in their subconsciousness)

[mmmPI]

That's... another can of worms which has been opened somewhere else.
In this specific case, we can only beg for mercy here: viewtopic.php?f=18&t=122236&p=642927&hi ... ng#p642927

Yeah x), that must be pretty rare though, when i think about it again, the "activating the inserter for quality nutrient" AFTER the other as you described seem to be the safest system currently

[weareryan]

Actually I was very wrong. There is no way the biochamber will output its fuel as part of any signal. Almost any current solution is prone to breaking at some point due to spoilage.