Fix extruder aluminium profile

#1
HI again and sorry for my noobest.

How i can fix the aluminium profile of the extruder to the Z carriage parts? Any screw in the building manual to fix it and put it in line. He have a little movement between the profile and the printed parts.
Maybe i can fix myself but if i can fix like the others users maybe is best.

thanks a lot i think is the last question :lol: