Postby James Hussar » Thu Dec 31, 2015 5:24 pm
I think I've got a good handle on asteroid mining, but haven't built up the credits to outfit a ship to do it "at scale" yet. Currently doing some trading and general RES policing to build up the funds for a proper mining vessel. I've worked with an Asp and a Cobra mkIV, limpets and up to 64 tons of cargo so far.
If you go solo, you need to go armed and armored - the better your luck with mining, the worse your luck with pirates. Having to arm and armor up means you'll be using hardpoints and internal bays for things other than mining equipment - wing up with a few fighters, let them get the bounties for covering your back, while you focus on finding those tasty P's (Painite, Platinum, Palladium).
High Intensity RES seem to have the best quality ores, but are rife with pirates. You can mine anywhere, but your wingmen may get bored well away from a RES.
Get the Medium mining laser, provided you have the power plant to feed it. Limpets are a game changer. I've been packing 16 limpets per 64 tons of cargo and it seems to work out well, with some caveats. I pack a prospector and a collector controller (two internal bays). A multi-bay refinery is a must, the more the merrier.
Here's my approach - assuming no pirates. Find nice metallic rings. Major reserves or better seem preferable for limpet work. I tend to pick a point in the ring that looks dense, but is close to the planet. Not sure if this is consistent but I find better metals closer to the planet than farther out. Over time, I work my way toward the planet so I don't get lost and revisit spent and worthless rocks.
I blast ONE fragment off the asteroid and target it. If the fragment is crap, I move on. If it looks "decent", i.e. the valuable ore fraction is in the upper teens or twenties, I deselect it, file a prospector limpet at the asteroid and target that. You don't have o target the prospector for collection, but it will tell you what the asteroid is made of and how much more value remains in it. Using prospector limpets doubles the extractable ore quantity once attached to the rock, hence the ONE test fragment at the start.
Once you've got a good rock tagged with a prospector, blast away at it - do not target any of the fragments - and fire off a collector limpet. The thing with collectors i that they will either go after the targeted fragment, then die (useful for grabbing that special piece of salvage cargo), or they will scurry back and forth grabbing fragments and bringing them back to your cargo bay. They live longer than it takes to pick up all the fragments you can blast off of one asteroid. If you're in a rich environment, the challenge becomes juggling multiple asteroids and prospector limpets.
Depending on the limpet controllers you have, you can use one of more limpets of that type. I will sometimes find a cluster of asteroids all worth mining - and here it becomes a race against time because ore fragments degrade with time.
I've heard that it's a good idea to orient yourself along the axis of rotation of the asteroid, since this will keep the fragments you blast off from getting knocked about and flung off in random directions. This makes a lot more sense without collector limpets since it's much faster to manually scoop up fragments that are floating in a line than it is to go chasing them. Collectors are so quick it hardly matters where you shoot if you have them, I think.
Consider three reasonably good asteroids. Blast a chunk off of each to make sure, prospect one, blast all the possible bits off it (dual 2-class lasers speed this up but eat up power), fire a collector, prospect the next, blast all the chunks off, prospect the next, blast chunks off...
Once a collector limpet picks up all it can, it will follow you to the next asteroid for as long as it lasts. If you have your cargo bay closed when the limpet retrieves a fragment, you'll get a warning and the collector will wait for you to open the scoop. I've seen my collectors fail, often, in this scenario, so be advised. Not being able to boost with the cargo bay open gives you one extra thing to remember - close the bay, boost, open the bay before the collector comes back with a fragment.
It's easy to get a ton, sometimes two, of a valuable ore from a single asteroid. I've found asteroids containing Platinum an Palladium in the 25% fraction per fragment - that's 25% of a ton of each per fragment - easy money, and I wasn't even in a Pristine ring. The multi-bay refinery will soak up any other less useful ores, and you can either vent or keep whatever that is.
Hope this is helpful, and if you're interested in winging up some time, give me shout.