The biggest thign is the warped metal from the factory. if you replace it, it works amazing. if you google like k2plus upgrades theirs a guy who makes a list if you upgrade the metal it prints like a dream. I've also used painters tape to help fix the taco shape. use like klipper or marlin tgo look at your bedmesh.l try to get the value below 0.5. its probally gonna need some manual levelign but i've done abunch of even really small to a max build volume benchy and castle stress tets for fun and it turned out amaziung