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thank you for all of your help, looking back over this i might as well have posted this in requests.

https://git.asie.pl/asie-minecraft/Nadeshicodec Apologies for scarce documentation, it's a bit of a project dump. It has a GUI, however. Feel free to fork and clean it up with the terms of the license in mind.

my code sample isn't using the predefined millibucket values at all. It reads user input and tries to convert it to a number. If you want to build something more clever that does a lookup for predefined sizes, you'll have to design that yourself. Here are a couple of snippets that would do some of what you're saying.   local size = tonumber(arg) if not size then if arg == "ingot" then size = 144 end end or local predefined_sizes = { ingot = 144 } local size = predefined_sizes[arg] or tonumber(arg) I could write the whole program, but you'll learn more if  you test your ideas yourself. There is a good online manual for learning lua: https://www.lua.org/pil/

thanks, this works with numerical values, but the program isn't reading the variables right, if i input ingot it skips straight to "could not understand" do i need to place the variable values somewhere else in the code, or is there some other way i have to do this. but at least i have a working prototype, so thanks!   after replacing arg with num in the print section, it now reads "could not understand nil" so, that means that it isn't recognizing that ingot = 144 right?

`io.read()` returns a string, and you want a number, there is a core lua function to convert strings to numbers: `tonumber(string): number` so something like: `local num = tonumber(io.read())` would be fine note that tonumber returns nil when the input can't be converted.   Also, I strongly recommend you get in the habbit of declaring everything local, unless you are intended to modify the global state of the operating system, and future scripts that you run, at least until the next time you boot. Thus: local component = require("component") local sides = require("sides") local ingot_mb = 144 local nugget_mb = 16 local block_mb = 1296 while true do local arg = io.read() if not arg or arg == "end" then break end local num = tonumber(arg) if num then component.transposer.transferFluid(sides.south, sides.north, num) else print("could not understand", arg) end end