Anyway, few observations, if anyone is interested:
1. main bus approach is inefficient and distracts from things that do matter;
2. all you need to do is to assemble 1100 processing units. You may do it in as much time as you wish. Moreover, there is no need to have your factory run during that on its full speed. Production of processing units puts a sever strain on copper / iron supplies; it is quite likely that other parts of your base will starve. That's normal. Depending on how efficient your production is, it can take from couple of minutes to couple of quarters. Once it's done, you're done too.
3. game without a goal is boring. And easy. Good we have achievements. But I'd like to have more logistic challenges.
4. coal era goes too soon. I'd like a coal assembler.
5. I drive 1-1 trains. It is easy, it is expandable, it won't fuel your magebase, though, but it's more than enough to launch a spaceship! The concept has been taken from this guide: http://steamcommunity.com/sharedfiles/f ... =668428689 All I added was PAX stations. I theory I planned a supply train which would deliver goods (ammo, mainly), but that wasn't necessary.
6. it takes a lot of time to sky-rocket evolution to 1.
7. yellow belts are fine in 75% cases; in remaining 25% use red ones. Does not pertain to mega-bases and weird cases, mind you.
Screenshots, if you please. Hey, I want to brag too!
Overview:
![Image](https://forums.factorio.com/images/ext/e542d16b7ba8d866e834a8386ce10488.png)
Science:
![Image](https://forums.factorio.com/images/ext/c83f167e9cb322b290fce86a3ba9a253.png)
Processing units:
![Image](https://forums.factorio.com/images/ext/92853e41cff4aaf968a549f7429076ac.png)
It runs at 32 PU / m.
Rocket:
![Image](https://forums.factorio.com/images/ext/a0d1304fa673e96944b40fbaaf95c648.png)
Building Store (*):
![Image](https://forums.factorio.com/images/ext/8712f0419fafafa8186513bee0c789a9.png)
Map:
![Image](https://forums.factorio.com/images/ext/3357feffd08a4fd4bf4c34b76c27b9ec.png)
(*) derived from this thread: viewtopic.php?f=8&t=26760 This is the approach I take in each of my games.