Little MasterSpool Roller + Sticker (fixed stl, multiple versions, including sourcefile)

I really like the idea of the masterspool system by **RichRap** (https://www.thingiverse.com/thing:2769823) and I loved the filament saving version by **dasfilament_de** (https://www.thingiverse.com/thing:2791930)!

As I tried to print the "Little MasterSpool Roller" by **tetradb** (https://www.thingiverse.com/thing:2793238) and the Sticker version by **raabi91** (https://www.thingiverse.com/thing:2808668) I found some errors in the stl files using Simplify3D.
Since I could not find any sourc