Sorry, I was out a while back and hadn't been checking the days leading up to and after it.
Pickaxe for the blacksmith is 3 heated ingots of a tier (copper > tin > bronze > zinc > brass > iron > steel > adelite > mithril > adamantine > titanium) - on axe selection
connect it to any grip (I think this still applies, I haven't recently tested it on Pole grips, but I always use one hand grip for myself on pick, just because)
YOU MUST USE 2h GRIP FOR CUSTOMER/TO GET NOTIFICATION OF CREATED ITEM.... but the blacksmith can use more than customers will buy..... just.. stressing that.... Don't want it to lead to confusion on someone's part...
Pickaxes can mine Ore of their tier or lower. - There's 6 ore veins available with no additional steps required on your part, but there are more in total. 2 veins are left of the Mine foyer, 2 right, and 2 in the foyer, the rest are in the mines themselves (though potentially more will be added for other reasons other places, I cannot vouch for these)
Ore that are undepleted reset/change at the turn of a new day, regardless of anything. If you were swinging your pick, for example, and the day changed before you hit, it likely won't count it and won't give anything. Old or new. - This can, in some cases, be advantageous, and of course, disadvantageous in others (more).
Depleted veins refill on some kinda timer which I don't really fully get, which may or may not, be borked this version - though, regardless, they will unload and respawn like trees and most other things when the game is saved and closed.
As a result, many have taken to, and recommend, Mining to 10% depletion, as this will cause it to reset/cycle over night (fills back to 100% of the new ore tier as well) with no miss, at the cost of 1/10 chance.
After you've equiped an item to each slot, you need to also select that slot in order to replace an item.