this is basic lay out, 2 block on exit side, five on enter side, and 2 top 2 bottom
both resource goes in same direction



this is the different direction type

Both will be limited by the underground belt speed, which is 4/s, allows 8 basic canvas


The upgraded version


So we better version which will not belimited, but need 6 block wide on input area



reversed version


With shrinked version of dispatcher, the input area and out area can reduce to 3 and 1

the unslow version, takes 5 space..