CR10 spool holder

Spool holder for my Creality CR10S with 608 bearings.
You can exchange core2 part for different length versions without any tool.

This thing is a modification and combination of different parts from:

http://www.thingiverse.com/thing:2058683 (longer core for iroberts low friction spool holder by sleepybishop) Not modified

https://www.thingiverse.com/thing:3052347 (Mount for CR-10 of "Low friction spool holder" by sanjabyelkin) Used a different parametrized version.

http://www.thingiverse.com/thing:235925 (Low friction spool holder by sneakypoo) Not modified 608_nut. Used a modified 608_core1. Additionally you can use 608_core2 if it fits your spool width.

Additional material:
1x M8x70 screw (alternatively M8 rod)
2 x M8 bolts (or 3 x M8 if M8 rod used)
2 x 608 bearings

Comments are appreciated.