Smelting Blueprint help

[Bertscout]

Give me idea or strings of your iron smelting with copper and steel

[DCYW]

use this site >> https://factorioprints.com/, but dunno if it helps

[impetus_maximus]

a fairly popular way of splitting ore/fuel which takes evenly from both halves of the belt.
https://steamcommunity.com/sharedfiles/filedetails/?id=1212972896

i connect the insterters with a wire. input inserter set to enable if *everything is 0. output inserter to read hold, no enable condition. this prevents them from filling the buffers. my setups saturate the belt, therefore they would never be able to empty them anyway.

[astrosha]

Personally, I don't have any real issues with furnace output buffers being filled; it only means I'm producing more plates (or steel, or whatever else I may be applying heat to) than I'm consuming.