First of all @SpongyBob_8783 is a genius!

I just needed a shallow rack for a lesser depth in front of the cooker hood exhaust.
The 134x134 measurement is the area of the track.
This model has no endstop, and i also opted out of the endstop on the original models, since it collides with the back of the cabinet ages before sliding out or becoming unstable anyway. So it just seemed like a waste of filament.
I realize that having a center spot kind of defeats the purpose of the original model, but i just wanted it to take up to entire square that was too shallow for the originals.

This is not a true remix, since my skill level doesn't allow it :b
Instead i copied the basic principles in a new project.
Oh and i didn't add a top, since i don't see the point.