Edit Coordinate System issue

[phousel]

Changes made in Sketch #2 have changed features that are referenced in following sketches (Extrusion #15 & 16 for example).
Systems says I need to "Edit the Coordinate System".
I have tried, several times to move the coordinate icon to the new edge, but it will not stay.

Why does the coordinate system not move with the referenced geometry?

Plese refer to SV with same topic.

Thanks.

[Anonymous]

That's the $6,000,000 question. Occasionally I can understand why it does it, such as when faces become swapped over (sheet
metal) or the face it's attached to becomes oriented in a different plane. I can't quite understand why it's throwing toys out of
the pram with this one though, and some of the errors about constraints to reference geometry...

The worst one is when openening an assembly, update it, sketches become detached and constraints then fail and you end up with
several parts like this and a broken assembly, but thats another story...

BTW it does the same in 6 as well.

John Bilton

[Anonymous]

The workaround is, never make changes to the part. Make sure you create it
perfectly every time. Ok?

--
Dave Jacquemotte
Automation Designer

[Anonymous]

What works in many cases, is pick "redefine
sketch" instead of "edit coordinate system".  It doesn't change anything in
your sketch except the base geometry.  If you are lucky and didn't do
anything too weird with the part, everything will be fine.

Anthony.

style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">

"phousel" <phousel@ptd.net>
wrote in message
href="news:f16d18f.-1@WebX.maYIadrTaRb">news:f16d18f.-1@WebX.maYIadrTaRb...

Changes
made in Sketch #2 have changed features that are referenced in following
sketches (Extrusion #15 & 16 for example).
Systems says I need to
"Edit the Coordinate System".
I have tried, several times to move the
coordinate icon to the new edge, but it will not stay.

Why does the coordinate system not move with the referenced geometry?

Plese refer to SV with same topic.

Thanks.

[Anonymous]

As long as you know what face the sketch in question was defined off of,
simply RMB on the sketch in the browser and select Redefine and select the
same face again.

99% of the time it it will fix itself and the keep the heirarchy healthy.

It seems to me the iTeam has spent more than a few hours on the whole
redefinition thing. I have noticed that faces of parts (with assembly
constraints) are staying defined with sketch and workfeature definition.

This is a good thing.

QBZ


"phousel" wrote in message
news:f16d18f.-1@WebX.maYIadrTaRb...
> Changes made in Sketch #2 have changed features that are referenced in
following sketches (Extrusion #15 & 16 for example).
> Systems says I need to "Edit the Coordinate System".
> I have tried, several times to move the coordinate icon to the new edge,
but it will not stay.
> Why does the coordinate system not move with the referenced geometry?
>
> Plese refer to SV with same topic.
>
> Thanks.
>

[Anonymous]

I managed to fix it in the features that aren't suppressed by putting the
coordinate system off the left vertical face instead of the flat that ties
into a radius. I have had trouble in the past with sketches where the CS
ties itself to any shape with a arc. My uneducated guess is it is a
rounding problem of some sort when it rebuilds the arc. Anyhow try tying
the CS to only right angle edges if at all possible, and they don't even
have to be on the same Z

--
Kent Keller
http://www.MyMcad.com/KWiK/Mcad.htm

Assistant Moderator
Autodesk Discussion Forum Moderator Program

"phousel" wrote in message
news:f16d18f.-1@WebX.maYIadrTaRb...
> Changes made in Sketch #2 have changed features that are referenced in
following sketches (Extrusion #15 & 16 for example).
> Systems says I need to "Edit the Coordinate System".
> I have tried, several times to move the coordinate icon to the new edge,
but it will not stay.
> Why does the coordinate system not move with the referenced geometry?
>
> Plese refer to SV with same topic.
>
> Thanks.
>

[phousel]

I have tried redefining the sketch(s) and at first glance, that seems to work. As you unsuppress the following features though, the sketch problems reappear (same sketches).

Kent: I tried doing as you suggested (at least as I understood it). I selected a flat surface (lower left) that only had right angle edges. Unfortunately, the sketch now is located off to the left of the part!!!
I tried projecting the work plain, then making the "old projected work plain" colinear with it but the results were any thing but usefull

[Anonymous]

I was afraid of that, after I posted I noticed the sketches of the hidden features were
off the part. I didn't have time to investigate if it was because of the relocation or
not, but I am sure it probably was. My bad, I should always drink at least a full cup of
coffee before posting.

--
Kent
Assistant Moderator
Autodesk Discussion Forum Moderator Program


"phousel" wrote in message news:f16d18f.5@WebX.maYIadrTaRb...

> Kent: I tried doing as you suggested (at least as I understood it). I selected a flat
surface (lower left) that only had right angle edges. Unfortunately, the sketch now is
located off to the left of the part!!!
> I tried projecting the work plain, then making the "old projected work plain" colinear
with it but the results were any thing but usefull
>

[Anonymous]

Why can't each sketch have the part origin and
the appropriate part axes projected into each sketch?  Then the sketch
could have axes that are independant of the faces that they were created on so
that if you change some geometry, the sketch doesn't freak out.

-Mike