If you’d like exact rates, you can use belts of various speeds & smart splitters, eg.:
Need 300, so take a higher belt (eg one of the 455) and smart split off into a mk3 belt (270), and overflow the rest. You should now have a full mk3 270 belt and 185 remaining (overflowed). From that you can smart split into a mk1 (60), and split it in two (30, 30). Take one of those and merge it with the 270 from before and you’ve now got 300, with 125+30 remaining for more siphoning off. Basically, 300=270+60/2.
Similarly, you could do 2000=1200+780+60/3. The rest is left as an exercise to the reader.
If you’d like exact rates, you can use belts of various speeds & smart splitters, eg.:
Need 300, so take a higher belt (eg one of the 455) and smart split off into a mk3 belt (270), and overflow the rest. You should now have a full mk3 270 belt and 185 remaining (overflowed). From that you can smart split into a mk1 (60), and split it in two (30, 30). Take one of those and merge it with the 270 from before and you’ve now got 300, with 125+30 remaining for more siphoning off. Basically, 300=270+60/2.
Similarly, you could do 2000=1200+780+60/3. The rest is left as an exercise to the reader.