modelling hierarchy

Hi all,

I want to create datum curves and boundary blends that are shared
between multiple parts, to create intersection curves, swept protrusions
and the like.

So the curves and the quilts are on top of a hierarchy that steer the
shape and the position of subordinate parts.

Is that at all possible ?
If not, is it possible in other parametric software ?

wzzl

 

I seem to remember this was discused in a recent thread. Your refering to
top down design - creating a parent model from which all others are
controlled.

Using Insert>shared data>copy geometry from other model... you can bring
external curves/datums/surfaces into the child model which is referenced
back to the parent and use it as a framework for your subparts. Use the
default coordinate system to make assmembling a breeze.

When you get into surfacing and more freeform modelling this is the only way
to ensure fit between parts. The classic example I use with my students is
creating the rubber grip laid onto the handle of a battery drill. The
surfaces from the drill handle are imported to the grip model.


Sean
--


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Sean Kerslake
Dept. Design & Technology
Loughborough University
Loughborough
LE11 3TU

01509 228317

 

I think if you googled 'master model', you'd find what you're looking for. PTC
probably has a bunch of stuff.

David Janes

: Hi all,
:
: I want to create datum curves and boundary blends that are shared
: between multiple parts, to create intersection curves, swept protrusions
: and the like.
:
: So the curves and the quilts are on top of a hierarchy that steer the
: shape and the position of subordinate parts.
:
: Is that at all possible ?
: If not, is it possible in other parametric software ?
:
: wzzl