Can't move train stop by size of 1 locomotive/wagon

[andyfth]

Imagine, that you have train station for locomotive-wagon-wagon. And you decide to ad one more locomotive, so locomotive-locomotive-wagon-wagon. Easy solution - just move train stop by 1 slot forward. And you don't have to change design of inserters at train station.

But train stops can't be moved forward by exact 1 slot. They are moving forward by 120% of slot.

So if you decide to ad 1 more wagon or 1 more locomotive in the front of train, it means rebuilding inserters. Because you can't move train stop by exact 1 slot.

[TruePikachu]

There is no bug in this post, everything technically works as intended. For technical reasons, both track and train stops are aligned to the 2x2 grid, and to my knowledge, there is no plan to change that.

[posila]

Hi, it truly is not a bug. As TruePikachu said, rails and train stops are aligned to 2x2 grid and locomotive is 7 tiles long, so moving train stop one locomotive length is not possible.
Personal roboport should help you with moving things around, or you can simply place the additional locomotive at the end of the train and have locomotive-wagon-wagon-locomotive

[Engimage]

While this is not a bug I personally find it would be much more consistent if wagons had spacing of 2 tiles.
This would benefit next things:
1. OP's problem - rotating stations would be much easier
2. Train pump can become a dedicated 2x2 entity also aligned to tracks like train stop. This would prevent inconsistency in wagon connections with pump and streamline connection graphics

Ofc this is a questionable change but I find it being more convenient solution.
However I do not expect this to be ever changed as it is not that much of an issue.