>Requires(in barrel): 8 rails; a bunch of coal; a bunch of cobblestone/cobbled deepslate/netherack.
>It's just everything you need to get started, no unnecessary stuff.
>Easy cart and barrel access.
>Automatically fuels itself with coal.
>To make it more efficient simply add more drills in the front.
>Can also just be used for tunnel making (for example: in the End, or in the ocean)(will require more blocks added manually since it won't be mining them).
Note: I noticed a problem with the original miner schematic (the redstone torch powered one) where it would kinda skip blocks once in a while because it was a little bit too fast, and the only way i could find to solve the issue was to make it furnace/coal powered instead. If you know anything about this issue, please lmk.. anyways, since i had to make it coal powered, the size of the whole contraption reduced quite a bit so it could be more efficient and ended up being cheaper and smaller than the original version!
also, at first I was like "man the coal is going to end super fast"... well not really, I was actually amazed by how long it lasts. A pack of coal could mine a maybe 2000 blocks or more, believe it or not, so it ended up not being too much of a downgrade even though it is no longer self-sufficient, still not bad at all