solidworks, Sketch Blocks and Derived Sketches

1. Re-deriving sketch?

I'm not quite sure how to put this question: I created an assembly X with  
parts A and B. Let's call A the "master part" which has no external  
references. Part B is based on a derived sketch from A.

By and by the assembly grew bigger and eventually became a sub-assembly of  
an even larger one (Y). More parts (C, D) were derived in-context from A  
and B. Later it turned out, from a logical standpoint, that A and B didn't  
really belong into X but into Y (which also contained X). So I moved them  
there with the result that pretty much everything went out of context (B  
with respect to A as well as parts C and D). Below are three crude  
graphical representations of what the assembly tree looked like at each  
stage:

1)
X
+- A
'- B->

2)
Y
'- X
     +- A
     +- B->
     +- C
     '- D

3)
Y
+- A
+- B->?
'- X
     +- C->?
     +- D->?

It seems that due to the reorganization of the project SW lost track of  
the in-context or derived-sketch relationships that existed. It did warn  
me that this would happen but I didn't have an alternative. This would be  
very easy to fix if I could just re-derive sketches from A into parts B  
thru D. Unfortunately this doesn't seem to be possible, and since the  
derived sketches form the basic feature of all these parts and not just an  
"add-on" feature, I can't just replace the feature with a new one.

Is there a good way to resolve this?

--Daniel

2. reorientating derived sketch

3. How to mirror derived sketches?

Hello People,

first off -- I'm German and I'm using the German version of Solidworks so 
I have a profound lack of the proper English technical vocabulary, but 
please bear with me.

I'm designing a part which is basically a square slab with almost 
identical features on all four narrow faces. The features all have the 
same shape but are milled out to different depths (which is why I can't 
use a circular pattern). So I made one sketch on one face first and then 
put derived sketches on the other three faces. Unfortunately I found that 
all of these sketches are a mirror image of the original one so all the 
derived features would come out as mirrored versions.

Why is this, and how can the orientation be changed? As far as I can tell, 
derived sketches can be translated and rotated within the plane on which 
they were place, but I haven't found a way to flip them.

Thanks for any tips,

--Daniel

-- 
"With me is nothing wrong! And with you?" (from r.a.m.p)

4. derived sketches between parts

5. R. reorientating derived sketch

Our News server crashed over the weekend and lost all the replies to my 
original post, but I was able to read them on Google.

Thank you to all who replied, however I had already tried to use Modify 
Sketch. Modify Sketch moves, scales and rotates but I can't see a way to 
use it to mirror a derived sketch. The Help doesn't list mirroring as one 
of it's capabilities.

Thank you,
Steven

>Sometimes when I create a derived sketch it is created facing the wrong 
>direction. Is there a way to flip the sketch about an axis or a technique 
>when selecting the sketch plane that will enable me to orientate it the 
>way that I want.
>
>TIA,
>
>Steven

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