Filament Gage
thingiverse
FilamentGageScale estimates meters of 1.75 mm filament remaining on a 1 Kg Hatchbox spool. (199 mm OD, 80 mm core, 62 mm inside width) FilamentGageScale2 estimates meters of 1.75 filament remaining on a 0.2 Kg MakerBot spool. (152 mm OD, 87 mm core, 32 mm inside width) Simply put the tool on the spool flange and rest the scale on the filament. Then read off how many meters remain on the spool.
Download Model from thingiverse
With this file you will be able to print Filament Gage with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Filament Gage.