>>528596754
This is the Observation Array Teleportation Node. This is what actually does the assembling. It consumes items in a specific order. Each item will have a matching nanite that overrides the recipe nanite tier. If you swap out nanites while a recipe is running, it will dynamically speed up the recipe. Removing nanites or use a nanite lower tier than required, then it will pause the recipe. Every tick, it will add one point of progress per nanite it has available. Nanites in the assembler are shared among every node.
This machine can be one-ticked, meaning if you fill the assembler with a lot of high tier nanites, it will finish recipe in a single tick (assuming the amount of nanites is greater than the progress ticks required).