Machine Frame (Thermal Expansion 4)/en

Machine Frames are a set of four component items from. They serve as the core of all Thermal Expansion machines. Machines can be crafted out of any Machine Frame. Machines crafted with higher tier Machine Frames will have higher energy, fluid, and capacities, and be able to accept higher tier Augments. The same recipes can be used to upgrade machines by replacing the frames with the machines you want.

Recipe
Machines crafted with lower tier Machine Frames can be upgraded to higher tiers with the same recipes as the Machine Frames themselves (replacing the center Machine Frame with the machine itself).