Ultra Super Smelter

When you press the button, both minecarts will depart. The right side is for fuel, and the left is for materials. They will each go around, back and forth on the smelter until they're empty, where they will then return. I'm unsure if this design would work on Bedrock, but it's definitely worth a try because as far as I know, there isn't a reason it shouldn't - the redstone doesn't use any Java-exclusive techniques. This super smelter design is incredibly efficient and has been optimized material-wise to make it as survival-friendly as possible. Unfortunately, making this design bigger won't help, as it's capped at how fast it can transport items, making this potentially the fastest you can get a super smelter. Hence, I decided to go with droppers instead of hoppers (this doubles the speed!) This is currently version 7 of every super smelter I've designed and by far the best. IMPORTANT NOTE: In order for the smelter to work, you HAVE TO and I repeat, HAVE TO build the right smelter based on direction. The schematics to north, east, south, and west are all included in the folder. They're slightly different because of how minecart derailment takes priority of a certain direction; I've tweaked them to work around this and get it to work properly.