herbk wrote: ↑
Fri Feb 15, 2019 6:51 am
At creating an array you have to set the parameters for the distance between the parts, e.g. the diameter of a "hole circle" at a flange to fit the screws to it.
If you have to change the hole circle of the flange, the screws placement don't change, because it is "constraint" by the arrays data. If you constraint the screws to the edges of a hole, they will change its placement with the change of the flange.
This behavior is in my mind a basic of an assembly, if i not have it, i don't need a assembly...
I don't think i understand you here.
what i think that you describe is the following: you say that if you have bracket what is assembled with a bold, ring and nut.
you have patterned the bracket with distance d_bracket and the bold, ring and nut with distances equal to distance d_bracket.
than you change something like the flange (diameter width etc). now the nut, ring and bold don't go with your change off the bracket.
i would thing that as long as the surface numbering don't change the first bold, ring and nut should follow the bracket and thus the existing pattern follows all the changed flanges.
there is only one way i could imagine how it could go wrong. i tried to do this in a screen grab from Creo. and that is that the axis of (in this case) the ring is placed of two distances from the flanges. and i can't imagine why anyone would do that...
in my opinion there is only one way the patterns may broke (visually). That is when (normally) the first pattern change the delta between each part.