The industry part of Advanced Autonomous Industries. Adds motors, powered offshore pumps, burner labs, and more. Alters tech and recipes. Additional features will be added gradually. Other AAI mods are not required.
The old recipe was 1 gear and 1 iron plate to make 2 belts, making each yellow belt 1.5 iron. The new recipe is 1 motor and 1 iron plate to make 1 belt, making each yellow belt 4 iron. That's more than doubling.
Was the move to 1 belt per craft instead of 2 intentional? Doesn't bother me too much but it is the largest jump in cost that I can tell.