Filament Cutter with Compartment (remix): V2.0

I printed the stl's from "martin_au" as provided, then I noticed the fit was rather loose with my particular printer and the "pressure" from the printed spring not so strong.

Adding a bit of material in the case (I used some PTFE tubes I had laying around) improved quite a bit!

So.... I decided to remix the "martin_au" files and include a groove to the spring and edge to the compartment holding the string, see the posted picture.

This improved the functionality a lot:

- The tension t