Allow to create sketches on a thicken/offset face

[Anonymous]

We cannot create sketches on a face created via Thicken / Offset command. We can create the desired sketch only on the 1st (main?) face.

Steps:

1. Create a simple sketch (eg. a rectangle)

2. Extrude it to taste but be sure to use in the "Output" the "Surface" option in order to create a surface and not a feature/object.

3. Select the surface and run the "Thicken / Offset" command. In the dialogue which appears select "Quilt" option. Also, select the surface generated at step 2. In "Distance" drop-box enter a sensible value in order to see the difference between the vertical faces (IOW make thick walls).

4. Press Ok. Now you should have some thick walls around. Great!

5. Hover with the mouse on any face, right-click, and choose "New Sketch"

Expected: A new sketch is created

Actual: A new sketch is created only for certain faces. In my case only for the faces "inside" of walls.

Note: I consider this rather a bug.

TIA for your support.

[DRoam]

I followed your workflow and I'm not experiencing the bug, I an create a sketch on any resulting face.

Can you create a Screencast of the bug in action? --> Autodesk Screencast (Free)

[Anonymous]

It seems that Thicken / Offset must be done with Direction : Inside.

See here an annotated video showing the problem:

https://drive.google.com/file/d/1OATwjSDQKUXSUbQys2bWU4kC6pJGnOUJ/view?usp=sharing

[DRoam · Accepted solution]

Ok I'm able to reproduce the bug as well by following the steps in your video. @johnsonshiue, has this bug been logged before? Here's a quick breakdown of the repro steps:

1. Sketch a rectangle
2. Extrude it as a solid in one direction (away from you in the image below)
3. Share the sketch and extrude the same rectangle as a surface in the OPPOSITE direction from the solid (towards you in the image below
4. Thicken the extruded surface as a quilt toward the INSIDE (join operation)
5. Attempting to create a sketch on one of the four outside faces (red in the image below) will result in an error

[johnsonshiue · Accepted solution]

Hi DRoam, This is a bug. The faces are not properly tagged. It should work. I will work with the project team to understand the behavior better. Many thanks! Johnson

[Anonymous]

Thanks both for your support!

@johnsonshiue: Where I should post such quirks? (I am new to this community)

IMHO this is not so much an idea but a lack of functionality. Sometimes there is a grey area between a "frontal" crash and a completely new functionality.

If posting here is ok with you then no problem. 🙂

[Xun.Zhang]

Hi John,

Yes, posting here is well enough.

Thanks!

[johnsonshiue · Accepted solution]

Hi! The issue was reported as INVGEN-13536. It is indeed a legacy geometry-specific naming and matching defect in Extrude/Thicken. I checked the latest status. There isn't much progress to report at the moment.

Many thanks!

[Anonymous]

Thanks Johnson. No problem. Just making sure that it is on your radar.