topic Betreff: Strange Offset Behavior in Inventor Forum

Strange Offset Behavior

checkcheck_master — Mon, 18 Jul 2022 19:10:06 GMT

Please see video, file attached.

Re: Strange Offset Behavior

Gabriel_Watson — Mon, 18 Jul 2022 19:19:35 GMT

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

Re: Strange Offset Behavior

kristin.jakuszanek — Mon, 18 Jul 2022 19:46:34 GMT

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

Re: Strange Offset Behavior

kristin.jakuszanek — Mon, 18 Jul 2022 19:47:23 GMT

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?

Betreff: Strange Offset Behavior

WHolzwarth — Mon, 18 Jul 2022 20:30:53 GMT

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

Betreff: Strange Offset Behavior

checkcheck_master — Mon, 18 Jul 2022 21:59:38 GMT

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.

Betreff: Strange Offset Behavior

SBix26 — Mon, 18 Jul 2022 23:09:27 GMT

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

Betreff: Strange Offset Behavior

johnsonshiue — Tue, 19 Jul 2022 19:59:31 GMT

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!

Betreff: Strange Offset Behavior

checkcheck_master — Tue, 19 Jul 2022 20:52:40 GMT

Thanks johnsonshiue for your reaction.

Betreff: Strange Offset Behavior

johnsonshiue — Tue, 26 Jul 2022 14:57:37 GMT

Hi! This has been reported as INVGEN-63205.

Many thanks!

Betreff: Strange Offset Behavior

checkcheck_master — Tue, 26 Jul 2022 15:59:11 GMT

Good to hear, thanks for the feedback.