rebuilding multiple times

Has anyone every had the experience that when they ctrlQ once their part
does NOT break, but when they do it a second time it DOES break. What the
hell is this? Do I have to rebuild my parts 2 or 3 times in order to make
sure that they are not broken?

Ahhhhhhhh...insanity is setting in.

Craig

 

Even if I had a circular reference why would it not break the first time I
did a ctrlQ rebuild? I mean a ctrlQ rebuild is a full rebuild right?

Normally when you have a circular reference (and more often in an assymbly)
it will rebuild over and over by itself....

This phenomenon is different.

 

No, not necessarily. Say you have a part (part 1) on which you change a
dimension. Now rebuild, and the part (part 2) you have based on it changes.
All is well. However, suppose that part 1 also has something tied to part 2
that just changed. Now another rebuild will update part 1, another rebuild
updates part 2, another rebuild updates part 1, etc. This is the basis of
Mike Wilson's poor man's animation.

WT

 

Ok just to clarify.
I have part1 open (only...no other files open at all...ie. part2 can NOT
change). I ctlrQ rebuild it once....it is fine. The next thing I do is ctrlQ
rebuild it again and my part breaks.

Are you saying that a part that I dont even have open can change (and thus
change my current part the second time I rebuild it)? I have a hard time
believing this, BUT Im not a seasoned user.

BTW...Is there a link to MW's poor mans animation....is it an assembly? What
your talking about would make sense to me if I had an assymbly with in
context relations going on...but Im not. The only thing I have open is
part1.

Craig

 

No, my answer was all based on an assy, not a part. What kind of part do
you have? Send me a copy?

WT

 

Its a multibody part (13 surfaces and 1 body).

I would love to send you a copy, but I cant...this is a new product an
protected by NDA.
Plus the part is 350Mb...Yuck.

 

Ok, time to turn it over to the surfacing crowd - I don't do those....

WT

 

If your part is referencing another part depending on your settings it may
be opened in the background, if that is the case than what wayne described
could be exactly what is happening. I believe that someone created a
utility that will export the references of a model to an excel spread sheet
helping you to determine circular references. www.cadml.org I got the link
from an earlier thread about circular references on an assembly but the
principles are the same.

Corey Scheich

 

Erm....why can't the Solidworks software work out that a circular reference
is being applied and generate a warning message?
An enhancement request maybe?

 

I had no idea that SWx could open a file in the background. Wow.
Where in my settings can I find the control for this???

I will check out the software. Thanks!
Craig

 

They have some checks for them but they missed a few. I don't know why.
You could create an example and send it to your var and see if they will do
anything, but they will more than likely try to get you into a class that
would explain that you shouldn't create circular references.

Man at the doctors office says "Doc it hurts when I do this."
the doctor replied "Don't do that."

Corey

 

That is exactly what an assembly does there could be 5000 parts that will
not show up under your windows menu. Options>External References I am not
sure if it will open them visible or not. I was just able to open a
referenced document in the background.

Corey

 

You could have circular references in equations that would cause this,
and that would be completely inside the part without any external
references.

For example :

Starting with A = 0, B = 1, C = 2

A = B
B = C

After the first rebuild, A = 1, B = 2, C = 2

After the second rebuild, A = 2, B = 2, C = 3

The setting to open referenced parts is Tools, Options, External
References, Load referenced documents.

matt

 

No equations in this part...

 

Well, the most famous one is "Ship in a Bottle" in which it's never
done rebuilding, but it uses equations.

So just to confound and astound the audience, I shall present my
recirculating-reticulating-reciprocator device...

http://www.mikejwilson.com/misc/wonderworld.zip

Hit CTRL-Q as fast as you can and go weeeeee!

Mike Wilson

PS: It's not an assy and uses no equations.

 

Wow--I am not worthy

 

Hey Mike,

"Cool!" or shall I say "God that's scary"

How in the world did you get those two sketches dependent on each other? If
I roll back to Orbit and look at the external relations the midpoint
relation points to lines in the sketch Gravity...Hummm... but that sketch
shouldn't exist because I'm rolled up past it... I'm confused.

A good magician never revels his secrets, but if you feel inclined to share
then it would be greatly appreciated...not to insinuate your not a good
magician

Thanks for the great example...or shall I say "wonder".

Craig

 

You must go on a quest...

http://makeashorterlink.com/?K142218E8

Be safe in your travels.

 

I know your dirty trick is that a bug?

Corey Scheich

 

It's a feature!