The Layout
This guide is not up to date, I am currently working on an updated Steam guide: https://steamcommunity.com/sharedfiles/filedetails/?id=920967372
Old
How Does It Work ?
Start the setup with 40 uranium 235
The long inserter adds uranium 238.
After one process turn the top inserter puts everything into the top chest.
The filter inserter puts 40 uranium 235 into the bottom chest but there is always 1 unit left in the top chest
When the bottum chest got 40 uranium 235, the top chest is emptied into the right chest.
There we get 1 uranium 235 every round + uranium 238.
When the top chest is empty the bottom inserter returns 40 uranium 235 for the next round.
Make sure the inserter stack size bonus of the stack filter inserter is set to even numbers.
Blueprint
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Source: https://steamcommunity.com/sharedfiles/filedetails/?id=917379311
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