Filleting

[panfield]

Hi All

I am trying to put a fillet of 3.5mm around the edge of the attached model, but keep getting the following message

'Modeling Operation Error:
Could not find acceptable sequence of capping faces to trim blend face.
Failed to perform blend.
Failure while filleting'.

Am I missing something?

Mike

[SEANT]

Ideally, AutoCAD likes edge fillets smaller than the smallest underlying radius. I modified your drawing to increase the rads at the square notch. A 3.5 edge would then work.

[panfield]

Thanks Seant

As I can't change the radius I tried a fillet of 3.4. Still no joy. Did you perform the fillet using the 'Chain' function around the whole model? If not how did you achieve the finished result?

[hazardman]

the 3.5mm fillet radius is too large for the corner i revclouded in red on the attached drawing--that is your problem area...(oops i have the cloud over the wrong corner so i reloaded the cad file)...

[SEANT]

Unfortunately, the Chain option will only work if each edge segment meet tangentially (all adjacent edges are tangent). The rectangle in the attached file could make use of the Chain option; your shape must have each edge selected individually. A PITA to be sure, but not that bad.

[panfield]

Thanks guys

But both files are coming up as incompatable versions??

[SEANT]

Oops, forgot to save down.

[hazardman]

ok i updated the file in the previous post...:wink:

[panfield]

Thanks for the help guys.

I have looked at your files and experimented a bit more. It seems that i can fillet upto 1.6 - 2mm after that i get the same error message. This is with selecting each edge individually i.e. not using the Chain command. Surely I should be able to fillet upto the smallest radius on the model!!