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I printed this and don't know how to use it now.
A lot of filing was needed to make them slide easily. But now I'm stuck - not the sliders ;-)

It would be great if you could explain/show:

  • how the long screw is attached (how many nuts? Three or just one?)
  • and/or how the adjustment mechanism works.

edit: I just posted a make showing what I've tried so far.
It didn't felt right and so I tried to remove the screw (it was too long anyway).