How do I properly calculate ratios?

[Bobby Hill]

So, I'm a bit confused on how to actually calculate ratios for machines and stuff. So, the solar panel in a mk1 assembler makes 9 per minute, the recipe says it takes five seconds to make it with 6 copper, 6 high purity silicon, and 4 circuit boards. So I assume it not making it not making 12 a minute is due to the assembler? So does this mean I have to supply 30 copper/silicon and 20 circuits a minute?

[Troll Norris]

I do apply my experiences form Factorio and running the modular factory where is no problem to increase or decrease the ammount of anything.

[3Ddeath]

All I know is that fast belts go WEEEEEEEE!

[N0ma13]

With maths

[Troll Norris]

MATH - Mental Abuse To Head

[N0ma13]

So the easiest way for me has been to break down to per second production which is super easy.
Your example:
Recipe takes 5 seconds with full resources so to make the output 1/s you build 5 assemblers.
So every 5 seconds you have to provide recipe x5 resources.
30 copper, 30 silicon, 20 boards/5 = 6/6/4 per second on your inputs. That can be done with normal belts. If you are producing 6/6/4/s on inputs then the reason you're only producing 9/min instead of 12 is because of the assembler tier 1. A tier 2 will use posted recipe speed. The tier 1 is slower.

[Nexii]

This thread is showing up quite often on google, so for people searching there are some online calculator tools out there to help with ratios:

• FactorioLab supports DSP: https://factoriolab.github.io/?s=dsp&v=9 — great full featured calc
  
• I created DSP Ratios: https://dsp-ratios.com/ — simple calc, beginner friendly
  
• chinese community are maintaining calc as well: https://dsp-calc.pro/

[Nellvan]

Publicado originalmente por Zyro:

i suggest not to work with full belts, try to brainstorm the ''perfect ratio'' because this game has noone of it.

This is simply wrong. This game has perfect ratios the same way any other process has. Exactly hitting them is not always the best way to go, but it's absoulutely a goal you can work towards.

You're right in that you do gotta watch the inserters and see if any particular build gets every component delivered in time.