I released a final ("final") design here: viewtopic.php?t=129925

I was able to remove all combinators, and improved the belt stacking

passback thumb 3.png
https://i.imgur.com/cbt3a5b.mp4
Hmm, I wonder what UPS-efficient Kovarex would look like?
--Me (more hours ago than I would like to admit)

Features:


Direct insertion. Less inserter and belt activity
Max beacons and productivity. Less centrifuges
Tiling
Stacked ...

I finally got back to working on this. Your (coffe-factorio's) design is the kind of breakthrough I needed, so thank you.

I know I tried free-feeding between the chem plants because that's the simplest thing which works fine for most ways of doing kovarex, and I remember it was jamming or thrashing ...

Download the save file and take a look. They already move exactly 40 U-235 and 2 U-238, so what you're theorizing is not how it's designed and is not the problem I am trying to find a solution for.

Factorio Screenshot 2025.07.05 - 15.19.04.67.png

I'm working on a very fast, UPS-efficient (I think), "passback" direct insertion kovarex design.

For debugging purposes, I've added combinators and lamps that display red for 1 second when a centrifuge stops working.

In previous iterations of ...

TL;DR
Make (straight) Rail hand-placeable for its 8 rotations in 2.0, rather than just the original 4 rotations.

What?
All 8 rotations of Rail Supports can be selected and hand-placed with the rotate / reverse rotate keybinds.
But only the original 4 rotations of Rail can be selected and hand ...

TL;DR
Make the "Toggle Rail Layer" keybind also toggle back and forth between Rail and Rail Support

What?
Currently the Toggle Rail Layer keybind does two things (to my knowledge):


When using the Rail Planner, it toggles between searching for a grounded vs. elevated destination
When ...

Error Util.cpp:95: Unexpected error occurred.

Toy save attached
Steps to reproduce:

1. Load toy save
2. (Verify /editor is enabled)
3. Left_Click on train to open its schedule and train remote view
4. Zoom in for normal view mode (rather than simplified view mode)
5. Shift + Left_Click the Train Stop
6. Crash

I agree that entities which do not impede walking, driving, nor enemies should not be damaged by railguns.

The mines still do not explode if destroyed during the deployment period. They will only explode on destruction once they are armed.

Ah, that is good.

I thought Stompers were intentionally resilient/immune to Land Mines and that the "bug" was how they didn't destroy Land Mines when en-route to a ...

Wasn't this the intended behavior? So that Land Mines are ineffective against Stompers? And so that Biters and Spitters can kill recently-placed Land Mines without blowing themselves up?

That deployment period was the only real downside Land Mines had, the only reason speedrunners and deathworld ...

TL;DR
Rename Personal Roboport in the English locale to Portable Roboport

Why?
"Personal Roboport" brings forth concepts like "customized, unique to the user, one-of-a-kind;" and "singular ownership, not shared between multiple people or multiple places." But Personal Roboports aren't just used ...

TL;DR
Keep the Blueprint Library open after deleting a Blueprint Book

What?
Currently, the library is closed when we delete a Blueprint Book stored in the Blueprint Library.

Instead, I would like the library to return to the next-higher nesting when a book is deleted.

Why?
This will improve ...

TL;DR: When placing or hovering a Land Mine, show a circle that visualizes their (or its) trigger area, similar to turrets.

Their trigger and damage radius are not the same. Trigger radius is 2.5 tiles, damage radius is 3.0 tiles.

I believe the trigger area is the most important thing to ...

I suggest to add the standard circuit icon on GUI: if you see the icon you know you can connect the radar to circuit.

Even the humble wooden chest has the circuit icon and the read-only checkbox that explains what it can do when connected to a circuit.

https://forums.factorio.com/download/file ...

They have visibility problems in combinator description fields, too, but only when the text field is active. This case could be resolved by changing or removing the text field highlighting.

Essentially: Curves are more fragile than straights. They cost more to build and have a larger surface area, yet they don't have more health.

When biters attack railroad tracks, they'll destroy 10 Curved Rails much more quickly than 30 Straight Rails, despite both requiring the same number of Rail ...

Opening the Factoriopedia (with alt + left-mouse-button) on any Curved Rail or any Half Diagonal Rail opens the 'pedia entry for Straight Rail.

The 'pedia entry for Straight Rail states that it yields 1 Rail item, which is inaccurate for Curved Rail and Half Diagonal Rail. Instead, they yield 3 and ...

Currently, all rail shapes have the same base health: 200.
I suggest increasing the health of Curved and Half-Diagonal Rails to counterbalance their higher material cost and larger surface area.


Straight rails cost 1 Rail item and cover 4 tiles
Diagonal rails cost 1 Rail item and cover ~8 tiles ...

This has been really bugging me. Large numbers are clamped, rather than overflow, in other parts of the UI, like constants in arithmetic combinators and constants in the conditions to enable/disable machines. And I do use this to set the max or min int32 without having to remember the actual values ...