I've added fluid and barrel to the machine but won't do anything more than staying still.
Both slots somehow gets filled even tho i only have it fill barrels not empty them.

strange, because i use them extensively with barrels and other containers as well. So you see the fluid in the machine as well as the barrels?
Did you tweak anything within the mod settings?
what fluid do you want to barrel?

maybe some mod tweaks with something, we will get to it. With your help we can check ingame what the status is.

strange, because i use them extensively with barrels and other containers as well. So you see the fluid in the machine as well as the barrels?

I do see them in the machine with the barrels i put in. From there noting happens.

Did you tweak anything within the mod settings?

No.

what fluid do you want to barrel?

lubricant.

maybe some mod tweaks with something, we will get to it. With your help we can check in game what the status is.

I belive to know why it didn't work and that would be that my barrels have more than 50 fluid in them using this mod:
https://mods.factorio.com/mod/barrel-capacity-modifier

i will look into it, if this combination might be the cause and try to figure how to prevent the problem

my first guess would be that the barrel size of 10000 makes the recipe stuck, since the input buffer of the barreling machine is 1000.
So the recipe wont fire since the needed amount of the ingredient (fluid) will not reach 10000.
As a work around you may try to set the barrel size within the barrel-capacity-modifier mod to 1000 which is already 20 times larger than the standard barrel.
If this is the "solution" for the time being i need to think about a universal method to prevent this with similar mods as well.
All my current fluid containers are smaller than 1000.

i have intentionally set them to(1 Million)(Max limit in settings) Max so it wouldn't be the solution on my end.

i see, setting it to 1000 worked at least ... one million wth :D

if i resize the input buffer that high it will just suck the pipes empty, i need to find a more adaptive approach.

ok, i checked, the limitation is that you cant fill or empty containers larger than the fluid buffer.

When handling barrels with the standard fixed recipes in an assembler the recipe will define the fluid size, and the assembler mechanism expands the in and output buffer accordingly to a size bigger than the amount of fluid handled also depending on the used modules/effects.

I now made the fluid buffer size configurable in version 2.0.2, so it is now up to the user to define the size, default is 1000, maximum is the same as the maximum for barrels tweaked with the barrel-capacity-modifier mod.

Please be aware that already placed entities are not affected when you change this setting and load a saved game, they need to be rebuilt
.
Another approach may be the introduction of another barreling-machine which uses manual set recipes like in assemblers, but that would counteract the flexibility to use any available barrels like burnable fuels ...

Thanks