Not much to the alcohol extraction really. Some people do it frozen but last time I tried it room temp and it came out okay but did need the winterizing, quite a bit of wax dropped out. Doesn't matter much if you intend to winterize anyway, the freezer method is extra trouble for not that much benefit. If you want to really leach the material you should leave it soaking for 2 days, otherwise you can just make a drip extractor from some kind of large bottle, if it's a big extraction, like a water dispenser bottle, something that tapers to a hole like a funnel when you cut the bottom off. I just use a gallon water jug for doing pound at a time, gotta really stuff it in there though to get that much in. By jug I don't mean the kind with a handle built in, just the plain jugs, they sometimes have a plastic loop around the neck as a handle of sorts.
You just position the jug upside down over a round container, I guess with a water dispenser bottle you could probably use a 5 gallon bucket. With that set up you just slowly pour in the alcohol until it starts coming out and then you let it drip for some time. When the drips get slow you add another portion, and do that a few times, about 5 times usually does it. After the last portion you let it drip out for several hours or overnight, it takes quite a while for all dripping to stop. You don't need to grind it up or anything, because the resin is on the outside, though if you wanted to soak it and get everything out then grinding might help, or at least some hand crushing.
It's pretty much the same routine as butane extraction, but less dangerous and you don't need a special column, just an empty poly bottle of some kind. I put the cap on the bottle, with a hole drilled in it about 1/8th inch diameter. I don't bother filtering because no particles even come out but if you're going to winterize then you'll be filtering it anyway. BTW I leave the filter over the container inside the freezer, with plastic over it so it won't dry out, not out on a counter or something. You want the alcohol to stay cold until it's filtered. Also wet the filter with alcohol first so it won't absorb as much of the extract alcohol like a wick.
You can find other tutorials but the drip bottle method is what I've found to be practical and effective.
