| [[Assembling machine]]s || Items needed for the recipe || twice the items needed in the recipe ||
|-
| [[Furnace]]s || Items needed for the recipe || twice the items needed in the recipe ||
|-
| [[Lab]]s || [[Science pack]]s || twice the items needed for one research point ||
|}
* [[Boiler]]s, [[Burner inserter]]s and [[Furnace]]s will not accept more than 5 x [[Fuel]].
* [[Boiler]]s, [[Burner inserter]]s and [[Furnace]]s will not accept more than 5 x [[Fuel]].
* [[Gun turret]]s will not accept more than 10 x [[Magazine]] (since v0.8.4).
* [[Gun turret]]s will not accept more than 10 x [[Magazine]] (since v0.8.4).
* [[Assembling machine]]s: will not accept more than twice the items needed in the recipe.
* [[Assembling machine]]s: will not accept more than twice the items needed in the recipe.
* For smelting, [[Furnace]]s have the same limits as assemblers. Example: no more than 10 x [[Iron plate]] is accepted for smelting into [[Steel bar]].
* [[Lab]]s: will not accept more than twice the items needed for one research point.
* [[Lab]]s: will not accept more than twice the items needed for one research point.
* For smelting, [[Furnace]]s have the same limits as assemblers. Example: no more than 10 x [[Iron plate]] is accepted for smelting into [[Steel plate]].
Inserters are the fundamental structures of a factory, and are a vital component in almost all contraptions. They look and work like a robot-arm and take items from behind and place them in front of it, if the object in front of it has enough space to accomodate for it.
Inserters will act differently depending on what they are moving items to/into so as not to monopolize all of the items being picked up and allow other machines and inserters on the same transport belt to have items.
Insertion Limits
Inserters will not insert into certain buildings if they already have, or are above of, a certain amount of items; it will simply seize to function until space has been made, and it will resume insertion. It's not possible for a inserter to overfill, or spill, items.
For example, if a boiler has 5 pieces of fuel in it, then an inserter will not insert additional fuel until it has 4 or less.
