Circular pattern error on fillet feature

Circular pattern error on fillet feature

carlossommer1
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Message 1 of 6

Circular pattern error on fillet feature

carlossommer1
Explorer
Explorer

I'm following a training video https://www.youtube.com/watch?v=H80Kc-E_NSY&t=41s 

The problem starts at 3:56 where he creates some fillets on a rib of 1.25mm. This gives me an error where it is unable to create part of the fillet. If I make the fillet 1.22 or less it works fine. But than when I goto the next step and create the circular pattern, it errors out because of the fillet. What I fond is that if I keep the fillet .9mm or less it works, otherwise I get an error. Why is he able to do it at 1.25mm and I'm not? 

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Replies (5)
Message 2 of 6

wmhazzard
Advisor
Advisor

It looks like for some reason the plane at an angle is being created 2 degrees off from normal to the XZ plane, that is creating odd surfaces at the bolt hole. I set the plane at 92 degrees and the fillets and pattern work. I don't know why the plane is created that way. 

Message 3 of 6

TheCADWhisperer
Consultant
Consultant
Accepted solution

@carlossommer1 

Your model does not match the original.

Chord Length.png

 

There is also something else going on here that I haven't quite figured out - the "Lip" that I referred to isn't even symmetrical relative to the center of the part?

 

@jeff_strater 

This is an interesting one.

I can't figure out why Extrude3 did not come out symmetric along that intersecting edge with the fillet?

Message 4 of 6

g-andresen
Consultant
Consultant

Hi,

Make sure that the profile-defining circle is concentric so that everything runs like clockwork.

 

Screencast

 

günther

Message 5 of 6

carlossommer1
Explorer
Explorer

Dumb rookies. I figured it was something I did but was not able to figure out what. Thanks.

Message 6 of 6

wmhazzard
Advisor
Advisor
Accepted solution

It looks like a bug with the projected line from the chord length fillet. If you delete the projected line in sketch 3 and replace it with a projected line from the bottom of the plate, the extrude is smooth. 

 

Screenshot 2021-11-07 091637.jpg