The original post: /r/3dprinting by /u/Leniwcowaty on 2025-01-03 15:14:56.

So today I have run out of filament literally 5 layers from the end, just before top layers started printing. I knew it would be a close call, the model required 56 g, I checked the spool with the remaining filament and it was like 180 g. I thought this spool alone cannot be more than 100 g, so let’s go.

Well, only after the filament run out I was able to check and the empty spool was actually 130 g. So I had about 50 g of filament. And yes, slicer is not always right, but if I knew it would be THIS close, I would reduce infill or something, to have a bit of a wiggle room.

And it struck me… How much more convinient would it be, if the spools had their weight stamped on them during manufacturing. It’s not like every spool is different, most of them are injection molded with precise amount of material. It can’t be hard to just include their intended weight on the mold, right? So that we can weight the material we have, subtract the spool and know exactly how much filament we have to work with.

So… why is it not a common practice? I saw that once, with some obscure, cheap filament. Never on any Fiberlogy, Sunlu…