When designing belt balancers it usually takes a large amount of time to properly test it. Therefore I decided to write a tool to help me with that. No more need to painfully test every input ingame. Now I also decided to release it to the public. You can get it from github . Because of technical re...

Your 6 belt balancer is not a 6 belt balancer at all. For example, there is no path from input 1 to the outputs 4 & 5.

About your 8 belt balancer, I have a smaller one that only occupys 11x8 tiles:

I fixed the iron shortage for that one assembler for you. http://i.imgur.com/Y8MabNx.png?1 H4sIAAAAAAAA/8VZf2+jMAz9KlP/BgkIUKoTn2WikNuiowGFcNpU9btfoN2PliQ2SXv7a9JUO/Hzs58dmu6p7eqqfXouj5RLJhkdyuORVwdabuhbL+gwhFJU fOg7IcM9beUm6LtB/bDj5fGtDEnwXoZxegoaJmg9/zs5BWs8JEsP6ToP8dJDvspDZHOwp1Xd8Zsjs9lCRcokPUyQ...

I started to build a big perimeter wall in my rather large map. Alongside the wall is a long railway so that I can setup a supply train. When I build a second access rail in the north, the train pathfinding chose to go to the first access rail in the south and move all the way around my wall. I mark...

This did also happen to me. You can see I got 6 achievements at once and only 3 of them registered for steam. Also I was using version 0.13.1

I too, ran into that problem when updating from 0.12.29 to 0.12.33. But in my case it doesn't include chain siganls. http://i.imgur.com/PrpNGfH.png In the save file, the coal train stops after a couple of seconds at the yellow signal. https://dl.dropboxusercontent.com/u/10493000/Factorio/mult_12_154...