
I left the support material on for this pic to show how little is needed.

Einfach genial mehr kann und brauch man dazu nicht sagen gute Idee und Ausführung,
Verbesserung vielleicht was zum Clipsen machen damit man das z.b beim umspulen montiert lassen kann

@KLM1318 Great stuff , I am please it helps, always nice to get feedback
It seems to me that the distances between the markers are the same, which doesn't make sense. The circumference on the 100% marker is a lot larger than at the 25% .. so the distances between 25 and 50 are bigger than 75 to 100%
@DrTerra so at 100% one circle holds more filament than at 25%
@DrTerra Yes I agree, Ive been playing around with this idea for a bit now and you are correct the outer layers will contribute more weight to the filament, this is mainly a starting point , I have monitored 1 spool down to its core , then compared it with another with varied results. I decided to publish this as a rough indicator but I am marking and tracking progress on 3 other spools (same brand) , eventually I should get something a little more accurate.