Strange Offset Behavior

[checkcheck_master]

Please see video, file attached.

[Gabriel_Watson]

2022.3 here works correctly without those issues. What's your version? Try updating.

[kristin.jakuszanek]

My guess is the offset you are trying to do will not work with the dimensions you are giving it. I.E. too big of an offset for a small part. I see you are working in mm, I was able to follow your workflow using mm and also couldn't offset it at that large of an offset, but could at a slightly smaller offset. I have included a video showing how a offset will work at 24mm but won't at 25mm. 

I am running Inventor 2022.3.1

[kristin.jakuszanek]

I could recreate it on 2022.3.1 using their dimensions. They are working in mm, had you recreated using inches? or use larger dimensions than what they did?

[WHolzwarth]

Using 2022.3, I could create an offset of 30 and edit it later to 25

[checkcheck_master]

Thank you all for the support and kind comments.
It's still curious, I think I just cracked the hidden code and now won a prize or something 🙂
The number 25 is of course also just magical.
All kidding aside, it can also be reproduced in a 'normal' sketch.
When you select the hypotenuse for the offset of 25, the side is not included, with the other sides it can be included.
It must be a sloping side of 25 by 25, 25 x 25.001 is no longer involved.
Tried on two PCs, IV2022.3 / IV2022.2.1
See video.

[SBix26]

I recreated the chamfered cube in 2023.1 and found the same issue.  I discovered that trying to offset by the exact amount of the chamfer is the problem.  If I reduce the cube to 80mm, no change.  If I change the chamfer to 24.99, it works at 25.00, but not at 24.99.  If I increase the chamfer to 30mm, then the offset fails at 30.

I think you've discovered a bug.  Congratulations!

---

Sam B

Inventor Pro 2023.1 | Windows 10 Home 21H2

[johnsonshiue]

Hi Folks,

Indeed, I believe this is a bug in the Offset command. The repairing ability seems to kick in a bit earlier than necessary. I will work with the project team to understand it better.

Many thanks!

[checkcheck_master]

Thanks johnsonshiue for your reaction.

[johnsonshiue]

Hi! This has been reported as INVGEN-63205.

Many thanks!

[checkcheck_master]

Good to hear, thanks for the feedback.