[Bug?] Mirrored geometry and extruding...

[Analias]

I'm not sure if this is a bug or a procedural problem.  Your input would be apprecated.

I'm editing a sketch that will later be used to extrude protions of the model.  I mirror some of the geometry from one side of the center line to the other to avoid introducting errors and to reduce work.  I noticed that the mirrored geometry is inconsistently used to allow selecting polygons to be extruded.  Where the original geometry would be used to demark or restrict areas in the sketch that could be used to select polygons for extruding, the mirrored geometry most often did not behave the same.  This causes mirroring of geometry not to be an option when generating geometry for extruding and forces the operator to create all new independent geometry that can be used for selecting polygons for extruding.

Please let me know if I'm doing something wrong procedurally or if this is a bug.

Here is my screen capture to demostrate the problem:

https://screencast.autodesk.com/main/details/a503cb2f-560e-4061-a63e-30c167461c3b

-Freeman

[ADSKDJW4]

Hello Analias,

I reviewed the screen cast and tried to duplicate this on my Fusion 360 and cannot from scratch. As each portion of the area I am able to mirror and then the Extrude can select the areas fine without overlapping or selecting multiple profiles. Can you attach the file for me to review against your screen cast I would just like to see if I can see why this is occurring? Does this happen with another sketch in a new file too? Please upload this to the post I would like to get you an answer.

Best Regards,

Don Warner

[Analias]

Hm.  That's a problem.  I moved on to creating the new geometry that allowed extruding without a problem.  The original file is gone.

I did save a copy and delete all my work back to the original sketch.  I removed the non-mirrored geometry and attempted to duplicate the problem again.  My starting point was slightly different that the original file in that I had given a dimension between the center line and the first set of rectangles I created.  I was not able to duplicate the mirroring and selection problem with the rectangles, but the mirrored 1.5" x 12" slot exhibits the problem.

So I created a new file that does exhibit the problem.  I'm not sure how to save the file locally, so I exported it as an archive file.  Please let me know if this doesn't work for you.

-Freeman

[Analias]

Sorry Don, I didn't see your second question. Yes -- I created a new sketch referenced from the front side of the extruded model (relative to the name views). I added a center line to mirror from, added some geometry and then tried to mirror it. Again the mirrored geometry would not act like the geometry it was copied from and modify polygon that could be extruded.

The process I used to create the geometry in the example file is very similar to what I did and had failed.


-Freeman

[ADSKDJW4]

Hello Freeman,

I took a look at your file upon opening and see the "Slot" loop is being consumed in the "Right Side" of the sketch. I delete this side on my end and re-mirror it. The "Slot" loop is not consumed on my mirror and functions mirroring left to right side. I am still looking at this trying to figure out what might be causing this on your install. I will follow up with you after I look into this.

Best Regards,

Don Warner

[ADSKDJW4]

Hello Freeman,

I wanted to follow up and mention I will report this to the development team as it appears to be an issue with the fillets on the rectangle that is created as a slot. Even though this works on the "Left side" when mirrored to the “Right Side”, I needed to edit the sketch and then use the extend tool to extend the arcs (fillets) together on the right side. Once I do this it works and wanted to supply this to you.

Another option would be to construct this shape on the left side using the Slot Command in the sketching environment.

I hope this helped?

Best Regards,

Don