Factorio Forums

I feel like I've mentioned this at some point but I couldn't begin to find it.

The idea is for an underground belt or pipe to have any length you want, but it spends belts or pipes from your inventory in order to place it. For example, if you try to make an express underground belt with a length of 18 tiles from end to end (16 tiles in between the end pieces), it will cost you 16 express belts from inventory, or it will fail to place the second underground belt piece if you don't have them.

When you pick up one end of an underground, you get the middle pieces along with it--or it fails to pick up if you cannot hold all of them.

I maintained a mod like that for a short time, these two mods are the surviving deriatives: https://mods.factorio.com/mod/Subterrain_modified and https://mods.factorio.com/mod/realvicto ... bterranean

Thanks! It works great! Seems to have some bugs with tracking items when loading into an existing save, but it's entirely consistent. If I pull up fifteen segments and only get 1 pipe, I can put the fifteen segments back down as it was and it only costs 1 pipe. Weird but it works.