I dont have personal experience, but porcelain is a very hard and dense material, and a wet saw is usually recommended for cutting it due to the risk of cracking or shattering the tile. However, it is possible to cut porcelain without a wet saw by using a manual tile cutter, angle grinder with a diamond blade, or tile nippers. These methods require more skill and patience, and may produce less precise cuts than a wet saw. It is always recommended to practice safety precautions when cutting any type of tile, especially porcelain due to its hardness.