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Boolean operation within Extrude or not?

Boolean operation within Extrude or not?

Boolean operation within Extrude or not?

(OP)
Does anybody know what the difference is between using the subtract operation within an extrude operation, and doing it after the extrude operation as an external Boolean operation?

We had to change some of our exercises when “bland all instances” disappeared in the blend dialog. Now, you have to include the blends in the “pattern feature” to blend all edges. After many futile trials, we found that it only works if you place the Boolean operation as an external operation. If it is included in the extrude operation only one of the edges get blended.

Take my file, attached, and include the subtract operation within the extrude (4) operation, and the result is that only one blend is patterned.

RE: Boolean operation within Extrude or not?

Hm, I tried it in NX8.5.0 and it doesn't seem to make a difference. The Blend gets instanced anyway.

Regards,
Tomas

RE: Boolean operation within Extrude or not?

(OP)
We are currently using NX8.0.3.4 at the University.

Henrik Johansson
University West

RE: Boolean operation within Extrude or not?

Yes, this appears to be something which has been improved with NX 8.5 since I just verified that there was a incomplete 'instance' (one of the blends is missed) when doing this in NX 8.0 with an imbedded Boolean (subtraction) whereas in NX 8.5 (at least NX 8.5.1.3) it does not.

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
Siemens PLM:
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