Mirror Command?

mirror of features? is that good?

Mirror of components, I can deal with...

Its always been lacking, especially compared to NX.

I only tend to use it for basic geometry at the start of the model, or untill the geometry remains symmetric.

You can select the model name from the top of the feature tree and then mirror. This will then mirror all features before your mirror feature, you can also add newgeometry before the mirror which will be added

Im yet to find a way of adding features to a mirrored group, although you can add them to a patterns group????

Mirror in sketch is pretty good.

Mirror Part can be good for creating handed parts as it also copied associated drawings, but lacks the association for future modification. We therefor tend to side with family tables for this.

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Personally I don't use it. Have seen too many issues downstream over the years. I primarily work in jigs and fixtures, but we have a few production parts that started out as mirrored and now are not! My biggest issue is usually with modifying mirrored weldment  assemblies someone outside designed. I probably don't understand the functionally of the command as I usually manage to blow up the whole model then try to figure out how to fix it. I have enough trouble figuring out how I may have created something after a few years/software updates!

Some other thoughts on the subject of "Mirror"

Wondering if anyone has seen something like….mirrored features create dependencies that we should be aware of.  The biggest issue comes in when trying to create drawings using "show dimensions". 

The mirrored features are most likely not parametrically dimensioned like you would want to show on a drawing. 

1. 1. I have not investigate this issue especially with Annotated Models? Any thoughts?

Based on “show dimensions” from mirrored features, when creating drawing, you would have to create dimensions will need to be used.  (Not sure if that is a reason to not mirror on its own.)

Mirroring parts (not features) is another thing that is actually easy to accomplish for new mirrored components.

Developing mirror features during concepting and preliminary design (in my book would be acceptable); however, most likely I would re-creating the mirrored part as a standalone part when it is time to do the drawing.

1. 2. Areas of concern and I have not investigate these…
   1. a. When utilizing mirroring, what happens downstream with manufacturing when they receive the model? Does manufacturing prefer a mirror component or a new component for the tooling portion?
   2. b. What about the mindset of Configuration Management, Data Management and Logistics, don’t they have to be aware of a mirrored component? If you show a drawing with a mirror component, they should be aware but life is not perfect…someone could drop the ball with potential losses (profit) because someone forgot to add a mirrored component into the sequence.

I've used it many times successfully.....while in part mode.  I will NOT use it in Assy mode, especially with the "new" mirror command in creo 3 (not sure when it was introduced).  I've certainly had SOME issues with it, especially if rounds and drafts are involved.  Sometimes it works, but you need to reselect references for the rounds to work, sometimes it just bombs.  Sometimes I use it to create mirror image parts within the same part (family table instance of left and right).

Yes, it SHOULD be more robust, and only mirror the geometry (without having to copy the surfaces), not the features if that's what you want, but I digress.............

Using Creo 2.0

FYI, I have used PTC software for 20 years now.

I am seeking input from others with their opinions/issues/concerns with this command.