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Incorrect feature recognition with holemaking

Valued Contributor
Valued Contributor

I really want to get the hole making options to work correctly, but I am not having luck. I created a shaft with a cross hole and chamfer. I would like to use a center drill to create 60 degree chamfer for the hole which I defined first with a step drill. The issues are  that the cone geometry it create is an incorrect diamter and and it only goes in tip depth.

 

I later tried again using a 90 degree countersink tool and a 90 degree chamfer on the hole. Just using that, the part is being gouged.

 

I am wondering how I can create a chamfer in NX in a cross hole using a center drill?

 

 

Using NX 8.0.3.4
3 REPLIES

Re: Incorrect feature recognition with holemaking

Gears Esteemed Contributor Gears Esteemed Contributor
Gears Esteemed Contributor

How are you creating the chamfer?

Note if you just use the default "chamfer" icon/settings, the chamfer may not be at a constant angle to the cross-hole.

(take cross sections parallel to, and perpendicular to, the shaft axis & measure the angle) relative to the cross hole CL)

Ken Akerboom Sr CAx Systems Engr, Moog, Inc.
Production: NX10.0.3.5 MP16/TC11.2
I'd rather be e-steamed than e-diseaseled


Re: Incorrect feature recognition with holemaking

Valued Contributor
Valued Contributor

The chamfer was created with a sketch and then a revolve.

Using NX 8.0.3.4

Re: Incorrect feature recognition with holemaking

Gears Esteemed Contributor Gears Esteemed Contributor
Gears Esteemed Contributor

You would have to change the manufacturing rule in MKE that is creating the operation.

 

If this is not a regular case, changing the depth in the operation should do it.

Stefan Pendl, Systemmanager CAx, HAIDLMAIR GmbH
Production: NX10.0.3, VERICUT 8.1, FBM, MRL 3.1.7 | TcUA 10.1 MP7 Patch 0 (10.1.7.0) | TcVis 11.4
Development: C (ITK), .NET, Tcl/Tk Testing: NX12.0 | AWC 3.4 Preparing: NX12.0

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