An easy tileable Kovarex enrichment plant with beacons and some combinators. It keeps 40 U-235 for himself and output one on the right belt. On the left you can see the U-238 input and output. There are 2 blueprint, one with power switch and one without.
http://i.imgur.com/8cHrF6q.jpg

I've made a ...

Thank you for this wonderful game!