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Invention: Difference between revisions

From EVE University Wiki
Applied some of the changes to invention post-Phoebe, as meta items no longer affect chances. Added the new equation image.
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=== Optional Items ===
=== Optional Items ===
# Base Item (recommended)[[File:Selecting a decryptor.png|right|thumb|Selecting a decryptor]]
[[File:Selecting a decryptor.png|right|thumb|Selecting a decryptor]]
#* One optional item that can be included is a base item - a "named" Tech 1 item of the type you are trying to invent.
#* These items increase the chance of a successful invention job significantly. The "[[Techs,_Tiers_and_Meta_levels#Tech_1_Meta_1-4|Meta Level]]" of an item is the key factor.
#* You can use Meta Level 1 to 4 ("named" tech I items) as a base item for invention - Meta 0 items have no effect, and you cannot use higher Meta Level items than Meta 4.  The higher the Meta Level of the base item, the better chances of success.  Like datacores, this base item will be consumed during the Invention process, whether you are successful or not.
# Decryptors (recommended for big expensive invention jobs, like T2 ships)
# Decryptors (recommended for big expensive invention jobs, like T2 ships)
#* Decryptors are an optional item that can be added to the invention process. Decryptors affect the invention chance of the process as well as the material efficiency, time efficiency, and number of runs of the created T2 BPC. Decryptors will be consumed during the Invention process, successful or not.
#* Decryptors are an optional item that can be added to the invention process. Decryptors affect the invention chance of the process as well as the material efficiency, time efficiency, and number of runs of the created T2 BPC. Decryptors will be consumed during the Invention process, successful or not.
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== Maximizing invention success ==
== Maximizing invention success ==


The chance for a succesful invention is calculated by this formula:  
The chance for a successful invention is calculated by this formula:  


[[File:Invention equation Crius.png]]
[[File:Invention Equation Phoebe.jpg]]


Base Chance:
Base Chance:
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* Science skills each improve the chance of success by twice as much as the encryption skill, so since all are 5x rank skills, you should train science skills up first. A decent option is to initially train encryption to 3 and science skills to 4. Eventually you should consider training encryption to 4 and the science skills to level 5 - especially the ones for ships - if you are going to be producing significant amounts of certain items.
* Science skills each improve the chance of success by twice as much as the encryption skill, so since all are 5x rank skills, you should train science skills up first. A decent option is to initially train encryption to 3 and science skills to 4. Eventually you should consider training encryption to 4 and the science skills to level 5 - especially the ones for ships - if you are going to be producing significant amounts of certain items.
* Higher meta-level Tech I items can also affect success significantly: while optional, always try to use meta 3 or 4 items if you can. Meta 4 items can be expensive, but you might judge them worthwhile for some high-value T2 items. You can place buy orders in the market to get some of these at very low prices from mission-runners who want to dump their loot. Then again, many meta 1 and 2 items may be purchased for very low prices.
* Decryptors can virtually guarantee success, but can also be very expensive: in general, use the expensive ones only for big items like Tech II ships.
* Decryptors can virtually guarantee success, but can also be very expensive: in general, use the expensive ones only for big items like Tech II ships.
* 'Symmetry' and 'Augmentation' type decryptors are often cheap, and add +2 or +9 (the latter at the cost of a lower invention chance) runs to the resulting BPC, so they can be very worthwhile (especially for ships and rigs, which only give 1-run BPCs by default) in driving down invention costs per manufacturing run, as well as increasing T2 manufacturing throughput by loosening the invention bottleneck.
* 'Symmetry' and 'Augmentation' type decryptors are often cheap, and add +2 or +9 (the latter at the cost of a lower invention chance) runs to the resulting BPC, so they can be very worthwhile (especially for ships and rigs, which only give 1-run BPCs by default) in driving down invention costs per manufacturing run, as well as increasing T2 manufacturing throughput by loosening the invention bottleneck.