Trim/Unite/Subtract question

[ilovedividends]

I'm relatively new and learning.

I'm trying to create a dome on a block. I created the sketch to interfere with the block and then I extrude it longer than the block, see 2nd pic.

How would I unite both bodies but cut the trim/excess width and length of the dome so that it matches up?

 

[Xwheelguy]

Welcome to the forum - from now on, please include the version of NX you're using, as you may not be able to perform some tasks in older versions that you can in newer versions.

Why not Extrude whole the section you want rather than make them in 2 separate features and then trim them down? Is it necessary to do this in 2 steps? I've attached an example just using curves (no Sketches), but you can easily create a Sketch with the correct profile. See layer 1.

If you absolutely MUST do it in 2 steps, then look at the solid on layer 10. 2 sides can be trimmed using the Extude command, the other uses Trim Body using 2 planes of the base. Play around with commands and see what happens when you change the Trim direction.

There's more than 1 way to skin this cat....

Extrude_NX8.prt

Tim Flater
NX Designer
NX 8.0.3.4
Win7 Pro x64 SP1
Intel Xeon 2.53 GHz 6GB RAM
NVIDIA Quadro 4000 2GB

 

[jerry1423]

Yes, it can be done as mentioned above with only one step . . .
But you may want to see my attached file using replace face. It was done in NX7.5.
You may not necessarily want to utilize replace face in this situation but it sure comes in handy for others.

 

[jerry1423]

and you can use replace face in your current model to put the end faces where you want them. In other words you would pick the one end face that you want to stay as is and the other end face to move to that one.

 

[jerry1423]

I think the attached file is more what you are looking for.
You need to step thru the model feature by feature to see how I did it. The two extrudes are united at the creation of the second extrude.
I used replace face (in syncronous modeling) to do the rest. You can swap out the end faces if the replaced face should have been to the other one.
Don't hesitate to ask more questions if you need to.