Dual filament unwind stopper

[d.herrendoerfer]

I had the issue that the upper filament roll would always unwind when the lower one was used.
Also there was a lot of vibration in the stack.
I made this small turntable-arm like retention tool for the upper filament coil.
It needs something sticky like a rubber band at the end to keep the coil from unwinding.

Picture:

Picture

:wq
D.Herrendoerfer