Printerials Scale
A filament scale you print and build yourself. Set a spool on it and your inventory knows what is left.
Not ready yet
The firmware is written and compiles. Nobody has built one, so nothing here is proven and there is no parts list worth following yet. When a scale exists that works, this page becomes the build guide.
If you already own a filament scale, you can point it at your inventory today. How to connect one.