Most people know OctoPrint as a must-have for 3D printer users. It provides remote access, easy file uploads, and powerful plugin support. But lately, I’ve been using it for something a little ...

It seems a simple enough concept: as a 3D printer consumes filament, the spool becomes lighter. If you weighed an empty spool, and subtracted that from the weight of the in-use spool, you’d know how ...