This is my first farm, so it may be more efficient

This farm produces around 133 iron ingots per minute, around 8k iron ingots per hour, this variates from the gravel wash itself, so theres no way to produce more, also, I don't know how lag-friendly it is, so be carefull.

This farm needs 177,716su to work, the dimentions are 26x18x23 and has an automatic overflow protection (in case you need it)

Setup steps are in the signs all over the farm but i'll put them below too if needed:

1. Put lava in the bottom of the cobblestone trap left to the energy imput.
2. Water in front of all the encased fans.
3. Replace the vaults if needed (3x3x9)
4. Break the tanks on the top of the farm
5. Water the Mechanical pumps.
6. Replace all the tanks (3x3)
7. Put ONE (1) Lava bucket in each of the tanks
8. Put a minecart in the assembler
9. GIVE ENERGY TO THE MACHINE
10. Pull the levers next to the asseblers to run the farm

Credits to Our Creation for the cobblefarm idea (https://createmod.com/schematics/super-compact-xp-farm-v1)