help constraints

[alessio1983]

Good morning, I have to create a constraint for a telescopic door made by 2 elements, i.e. the first element hooks the second and drags it, I don't know what kind of constraint to use.
Does anyone have any ideas?
Thank you.

 

[Cast16]

I don't know with the constraints but I'm rich in using the "contact set" for that.

 

[Cast16]

another idea: use constraints with min/max limits.

 

[alessio1983]

I don't know with the constraints but I'm rich in using the "contact set" for that.

thank you for the answer but I do not know

 

[Cast16]

contact set video