Spool Gauge

Hook it onto the edge of the spool to measure what filament you have left, wouldnt say its accurate but gives a fair indication on what is left.

Ive made 3 versions length (metres) weight(KG) and Percentage(%).

Fairly quick to print 30-40 minutes.

I printed these ones on their sides, I intend to colour the letters with a sharpy , but you could print them letters facing up and pause at layer height and change filament to desired colour.

I printed on its side so no supports necessary , neither did I need adhesion , but that may depend on you printer or print bed, as usual I printed with 20% infil at 0.2mm resoloution.