problem with constraints.

[Cast16]

I don't know if it's common, but it's making me nervous about the loss of assembly constraints.
1. I had made a hole in one part by binding the position with "project geometry" of another hole of another part - changing the position of the first hole the geometry designed remains in the old position.
2.Sometimes placing a "x" part in assembly trying to bind to a "y" part that was previously fully bound, the "y" part starts to go crazy changing position ...

I press that I use inventor recently and come from solidedge and I know that working begins to understand the tricks, but I'm trying to figure out what I can trust to make an assembly a minimum parameterized

Thank you.

 

[stefanobruno]

adactivity is a bad beast for those who have experience (and use it with a lot of moderation), for a novice it is to scan absolutely species on a real commit.
the risk of making mistakes is very high.
I'm not saying it doesn't work, actually.
the problem is that you carry links between the various files and that you have to be more than aware, otherwise you fall all the hair you have.