Z-Slider modified for Foldarap

Hi!
These Z-Sliders for Foldarap are based on standard Z Sliders for foldarap. They have 2 important improvements:

1 - Top and Bottom surface are addeded upon and on the bottom of the nuts in order to delete the game between Sliders and M5 nuts. I made this because the game between Sliders and M5 nuts caused misalignment between Left and Right Sliders frequently.
2 - Now endstop holder is stronger than the previous version.

In photos you can see the previous part [white] and new par