I've been playing with numbers a little, trying to take a somewhat similarity between a printer and a cornucopia machine. I came with these numbers, taking the objective of make bullets very easy to produce and pistols fairly easy. Please notice that this is only about TIME, getting the mats would be another thing entirely.
I broke the time requirements in three factors: Size, Complexity and Materials. Base time comes from the cost, and gets modified by the three factors.
Time related to cost:
Trivial - 5 minutes
Low - 10 minutes
Moderate - 30 minutes
High - 60 minutes
Expensive - 120 minutes for the first 10.000 creds or items without listed credits, duplicate per each 10.000 above that
Size (see Gear Size in the EP core book):
Nano - x1
Micro - x0.5
Mini - x1
Medium - x1
2 hands required - x1.5
Large (human size) - x2
Large x2 (up to 250Kg and 4x2x2 meters) - x4
Car size - x6
Bus size (small shuttle's hull) - x10
Complexity:
Simple (no moving parts or very few: wrench, screwdriver...) x0.1
Mechanic (purely physics) x0.5
Electronic, simple (LCD screen or equivalent to a mobile phone of 5 years ago) x0.5
Electronic, complex (smartlinks, modern smartphones) x1
Electronic, micro (circuit board recently commercialiced in the second semester of 2010) x2
Electronic, nano (ectos) x3
Quantum x10
Materials:
Common mats (iron, carbon, plastic and ceramic composites, steel...) x1
Exotic materials ("rare earths", Gamemaster's decision) x1.5
Radioactive materials (more for the housing of the plutonium than anything else) x3
Antimatter involved (again, for the housing. And notice that antimatter tends to need a cage thousands of times bigger than the amount of antimatter contained) x20 or more.
With this, you can assemble a standard pistol in 10 minutes (5 if you don't want stuff like the smartlink or the safety features), 1 hour for the railgun version, and you can produce about 100 normal bullets in about 15 seconds.
Now all this is just for the product, we need to take into account the size of the cornucopia machine. For the sake of simplicity, I'll use the Fabber (4L), the table-sized (40 L) and the Factory (bus size).
Size difference is not really a problem: we can assume that any CM can make a "profilactic" to protect the building area, being the problem just the amount of building nanomachines that the CM can produce.
The size of the CMs would be:
Fabber - Mini
Table - Large (human)
Factory - bus-sized
Take de number of sizes of difference and call it, for example, "N". If the CM is smaller, multiply the time for 2^N (this includes time to change the mat bricks). If the CM is bigger, then it can make 2^N items per timeframe, as long as it has enough materials.
As for the materials needed for making almost any given item, they cost one less level than the finished product, or the minimun if it was Trivial (if the cost was Expensive, divide it in two).
Remember that Biomorphs need a healing vat and about 2 years to be ready (a pod being produced "in one piece" woud take about a year or so). As for Synthmorphs, they would require, as a rule of thumb, about 1 week per 5.000 creds of cost, plus a Large-sized fabber and the radioactive mats option... and a cyberbrain would be in the "quantum" part of the components complexity.
Finally, this is a rule of thumb I will be testing, not a fully tested version. While the costs are mostly time, remember that there is something called "Opportunity cost", which refers to what you can't make when you are making something (so if you are making a sniper rifle, you are not making an assault rifle, for example). While players won't notice this very much, large scale operations like the ones directed by Hypercorps surely will.
And I'd like to hear opinions about this ^^
Welcome! These forums will be deactivated by the end of this year. The conversation continues in a new morph over on Discord! Please join us there for a more active conversation and the occasional opportunity to ask developers questions directly! Go to the PS+ Discord Server.
Revamped nanofabbing time
Tue, 2011-08-09 18:31
#1
Revamped nanofabbing time
Tue, 2011-08-09 21:57
#2
Re: Revamped nanofabbing time
Nifty! that'll be handy!
what about meals and drinks?
—
[center] Q U I N C E Y ^_*_^ F O R D E R [/center]
Remember The Cant!
[img]http://tinyurl.com/h8azy78[/img]
[img]http://i249.photobucket.com/albums/gg205/tachistarfire/theeye_fanzine_us...
Wed, 2011-08-10 06:39
#3
Re: Revamped nanofabbing time
Thermal sanity check:
Let's assume a bullet weighs 10 grams and is made of iron. To make that out of iron oxide you need to supply an enthalpy of formation of 825 kJ/mol; presumably nano feedstock has elements in convenient chemical forms, so let's assume just 10 kJ/mol. 1 kg of iron is about 18 moles, so you need to add 180 kJ. To do that in 15 seconds you need 12 kW of power, about the power of a car.
Not too unreasonable. I would think the bullets would be quite hot and your CM better have some good cooling. For small objects, especially if they are heat sensitive, the printing time is likely limited by overheating. And if you have limited power things get slowed down. Bad feedstock (especially if you need to recycle stuff to make it) makes the power requirements rush upwards a lot (you need to pay the full enthalpy of formation). I have ignored efficiency here; real CMs likely require a few times more power.
Or you get the parts as a IKEA flatpack that fits the machine.
This can be even bigger. Expensive nanoenhancements are built out of the same matter as cleaner nanobots, just more elaborately organized. The same biomass can be turned into a drug gland or a hamburger.
—

Wed, 2011-08-10 17:39
#4
Re: Revamped nanofabbing time
Food can be made in between 10 to 30 minutes, depending of the complexity. The good news, all dishes have an "autoheating" label. Or you can "print" the raw materials and enjoy cooking, it tends to taste a little more natural.
Heating: Well, if you go to a printer that uses toner or laser, the paper gets out really hot. Were that metal... However, I failed to write that this were "production times", cooling is something that can be done outside the CM, so the machine can works into something else. It's not too unreasonable to assume that some heat converters are installed into the "cooling bays" of the bigger fabs.
I think we can asume 10x(size modifier)x(complexity modifier) minutes as a bare minimun of time for a device to safely cool to ambient temperature, safety times at the GM's discrection when talking about weapons, tools...
Profilactic Vs Ikea: Most are irrelevant: weapons can be mounted/dismounted with the related firing skill (since it covers basic maintenance), clothes and armor will be produced as the different parts, so no really assemblage is needed... And most of the other stuff can be too complicated (for example, some quantum computer...), so I'll leave that to each GM.
Nanoenhancemens: healing vat required, medicine (nanotechnology) test required, mats required... I don't think that is really related to this text, and I think the production time would be included in the time you have to spend into a healing vat. There is no real opportunity cost here, since even if the players have access to only one healing vat, times can be adjusted to the GM's needs (I put a top of 3 hours top for augmentations... more than one can be done at once. However, by their nature, only when the character has been fully healed will the vat open).