Simple Spool holder idea from Voron 2 with PTFE tube

[Veti]

I had a look at the voron 2 spool holder.

Its such a nice and simple idea to use a piece of ptfe tube as the rolling surface

https://github.com/VoronDesign/Voron-2/blob/V2.4/STLs/VORON2.4/Spool_Management/spool_holder.stl