topic Re: Inner+Outer Corner Round Blend Offset in Inventor Forum

Inner+Outer Corner Round Blend Offset

rcolon9E4ZX — Tue, 19 Aug 2025 20:03:45 GMT

Hello.

How do I prevent this offset when selecting edges to Fillet/Corner Round in a single feature? Should inner and outer rounds always be separated to avoid this behavior?

Before

After

Regards,

Re: Inner+Outer Corner Round Blend Offset

kacper.suchomski — Tue, 19 Aug 2025 20:06:41 GMT

I wonder if the order of clicks might have an impact on this, but to check that we need the file.

Re: Inner+Outer Corner Round Blend Offset

rcolon9E4ZX — Tue, 19 Aug 2025 21:43:56 GMT

@kacper.suchomski ,

Thank you for the response. Please find attached IPT from INV2024.

I have seen this happen on a few different parts. If I recall correctly, it is usually with sheet metal parts and the Corner Round feature. Not sure if this is an issue with the Fillet feature.

Regards,

Re: Inner+Outer Corner Round Blend Offset

dan_inv09 — Tue, 19 Aug 2025 22:05:08 GMT

I don't think that it is the order of clicks that matter, Inventor seems to do it in a sort of clockwise manner (but you are not going to be able to tell if it is from the top or the bottom or the side and it will figure out what you are trying to do if you try to trick it).

For a more controllable blend of fillets - if it is more simple parts like this it is probably better to create that corner as rounded in your sketch for your sheet metal face (or your extrusion if it is a standard part).

I was trying to model some old castings some time ago and so many fillets came together in some spots ... you know, do believe that this problem was even able to confound mirroring at times. (I do know that I did have mirrors fail because what looked identical wouldn't fillet as a mirrored feature.)

Re: Inner+Outer Corner Round Blend Offset

SBix26 — Wed, 20 Aug 2025 01:11:53 GMT

For what it's worth, I tried this in Inventor 2026.1. I first deleted your corner round feature, then created it again, with perfect results.

The Corner Round tool has been updated in the last release or two.

Sam B

Inventor Pro 2026.1 | Windows 11 Home 24H2

Re: Inner+Outer Corner Round Blend Offset

kacper.suchomski — Wed, 20 Aug 2025 03:53:55 GMT

@dan_inv09 wrote:

I don't think that it is the order of clicks that matter, Inventor seems to do it in a sort of clockwise manner (but you are not going to be able to tell if it is from the top or the bottom or the side and it will figure out what you are trying to do if you try to trick it).

The order of selection matters.

(view in My Videos)