This little piece attaches alejandrosnz's cable chain https://www.thingiverse.com/thing:2006671/
to the fabulous aluminium Y carriage from
It attaches to the larger hole (intended for excentric nut) so make sure your carriage is alligned correctly,
The only additional thing you will need is an M3 screw and nut.
I hope you like it. Please post if you made one ;)
UPDATE: I've added two versions for the smaller hole. One intended to use an M4 screw and nut. The second one uses an M3 screw and nut. The latter one has more play so I would recommend using the M4 one.