This probably isn't what you mean, but I'm looking at it like this >
XP gets you to the next level
Each level is worth 10 skill points, e.g level 6 you will have 60 skill.
Skill affects the outcome of the crafting project, the higher the skill, the better the quality. eg, needing 40 skill for a beam, having less than that, you will get lower quality, higher than that, more likely to get a purple.
Each item has a suggested skill, eg, a level to reach before being able to craft it correctly.
Again with beams, being level 7 in beams and going to craft a Mk XII item (which is 150 I think). Having only 70 skill means you will probably just craft a white. The higher level you are, the more skill, the better quality item you will craft.
Hope I am not way off here, but thats how I am seeing how the R&D system works.
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