Filament Spool Gauge

prusaprinters

<p>This print was designed specifically for the quick and useful prints contest. &nbsp;I am always curious on how much filament I have left before I start printing, so I decided to design something that will give me an estimate on how much filament is left on my spool. &nbsp;The design was inspired by the gauge that lets you know roughly how much propane you have left in your tank. &nbsp;Although it is pretty simplistic in nature, I think it is super useful. &nbsp;My hope is to create more detailed amounts remaining in the future. &nbsp;I will also weigh my spool in the future to make sure this is fairly accurate. &nbsp;It seems to work fairly well for the standard 1kg spool (Prusament). &nbsp;I used the markings on the inside of the spool to help out a little.</p>