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How to create variable N blends on closed edge

rchen-5
2-Guest

How to create variable N blends on closed edge

Hello,

 

I have created a 3D part in Creo Elements/Direct by following the dimensions of the 2D drawing

2D dimensions are showned bellow:

6.JPG

 

The red circles in 2D drawing are the variable blends which I want to create in 3D part.

Picture below is the 3D part. Top edge of the part is where I want to create variable blends.

4.JPG

 

Because software doesn't allow user to create variable N blends on closed edges.

So I cut the part in half and then use variable N blends.

 5.JPG2.JPG

 

 

Finally, I mirror the part. But the problem is that there are discontinuities on the mirror plane.

7.JPG

 

Is there any method which can create the smooth variable blends on closed edge.

The second question is that is there any way to select a specific point on edges to create variabe blend. It's hard to create variable blend on specific point in Creo Elements/Direct. 

 

 

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