mating

[andrea1974]

in the "perno-foro" coupling, example a screw placed in its hole, to fix it how much constraints do you need to be minimal? I'll put 2
coincidence
concentric with rotation block
But maybe one?

 

[MassiVonWeizen]

You can only use one if the diameters are the same, and then you can select the two edges and give a coincidence bond. but in this case you cannot block the rotation.

 

[andrea1974]

ah ok therefore always need 2 to fix it

 

[apalazzi]

in the "perno-foro" coupling, example a screw placed in its hole, to fix it how much constraints do you need to be minimal? I'll put 2
coincidence
concentric with rotation block
But maybe one?

My advice is to bind the part completely, so if you see that the vine has degrees of freedom it means that it is not properly bound.
in the specific case use "insert", or the axial constraint with blocked rotation and matching plans when I am lazy and I go behind the old habits

Andrea

 

[MassiVonWeizen]

@apalazzi the software in question is solidworks and does not solidedge.
Moreover, the question did not ask whether a hole must be bound by a complete hole, but if it is possible to do so with one constraint.

 

[apalazzi]

Doh, see the rush...

 

[SimoneCRV]

in the "perno-foro" coupling, example a screw placed in its hole, to fix it how much constraints do you need to be minimal? I'll put 2
coincidence
concentric with rotation block
But maybe one?

you can also use the profile center with locked rotation.
so you have only one bond