> Presumably CAD also allows you to do things like "find a point 3/5 along 
> the length of this edge".

AFAIK there is not usually any automatic way to do that, you'd just need to 
add a formula to one of the point dimensions that says something like 
"Edge1.Length * 3/5".  That way, whenever the length of that edge changes, 
the point is always fixed 3/5 of the way along.  You could then draw some 
geometry referenced to that point, then of course that would all move with 
the point too.  It gets a bit like POV, where you can just define a variable 
for something like "screw position", and then drive lots of other features 
like holes and cut-outs in lots of parts from that one variable.  The 
benefit of this is when your customer says "ok we need that screw moved 
1.2mm" it only takes you a few seconds to update all your parts rather than 
an hour or two.

> the best feature of all is the way surfaces "stick" to each other as soon 
> as they touch...
...
> Also, you can't delete any item smaller than a certain size on screen. You 
> have to zoom in first. And the minimum size is significantly larger than 
> you'd expect.

I would expect there would be settings for these sorts of things?

Post a reply to this message