coz you need a ton of alu inggot

into blender :

• 375 bauxite ppm (1/2 of miner mk3)
• 250 coal ppm (1/3 miner mk3)

into refinery :

• 125 sulfur ppm (1/6 sulful miner )

into foundry (bottom left input) :

• 625 silica

into water (blue) pipe (any open junction, water pipe chained)

• 150 water ppm (1/2 water extractor)
• i use 2 pump (600 ppm), into 1 pipe, split into 4 of this setup

all miner and extractor assume mk3 pure node full overclock

output :

• 500 alu ingot

all power line/connector daisy chained