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Create a reverse solid from a pocket
3

Create a reverse solid from a pocket

Create a reverse solid from a pocket

(OP)
Hi,

I was wondering if there is a way to create a solid from an existing pocket/ mold?

I have a solid part with a tapered pocket and was wondering if there is a quick way to create the male version of the pocket. I can always redraw it but thought there might be a faster method.

Thank you

John

RE: Create a reverse solid from a pocket

Extract the faces of the pocket, create surface(s) to cap the pocket, then sew them together.

www.nxjournaling.com

RE: Create a reverse solid from a pocket

Extrude the edges of the pocket.

MZ7DYJ

RE: Create a reverse solid from a pocket

Yes, there is a way to do this that does not use the procedures outlined by cowski snd mz7dvj but it depends on the shape of the model. Could you provide either the model itself or at least an image showing the pocket that you're attempting to extract a solid representing the void?

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

To an Engineer, the glass is twice as big as it needs to be.

RE: Create a reverse solid from a pocket

Subtract your pocket/mold from a block, and trim.

Proud Member of the Reality-Based Community..

To the Toolmaker, your nice little cartoon drawing of your glass looks cool, but your solid model sucks. Do you want me to fix it, or are you going to take all week to get it back to me so I can get some work done?

RE: Create a reverse solid from a pocket

What I'm talking about is a procedure, which can be done in a single operation, with depends on deleteing all the faces of a model that are not part of the 'pocket' and then having the model be 'healed' so that all you have left is a solid body which represents the 'void'. In other words, you end up with a solid of the 'air' inside the pocket. If can upload the model or at least provied an picture of what you're working on we might be able to provide you an example. BTW, what version of NX are you running?

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

To an Engineer, the glass is twice as big as it needs to be.

RE: Create a reverse solid from a pocket

Here's my version...

RE: Create a reverse solid from a pocket

That's not a solid model and there are problems with the topology. Do you have a better model?

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

To an Engineer, the glass is twice as big as it needs to be.

RE: Create a reverse solid from a pocket

Mr. Baker,
Based on the topic of this thread, could you create a (simple) model for us?
I did have the feeling that NX would have the capability of creating a solid using the brief description that you placed on your second reply! But I do not know how!....................

MZ7DYJ

RE: Create a reverse solid from a pocket

It's still a pretty poor model, but even if it was a better model, this particular shape, with multiple faces that need to be created to close the 'void', you're better off trying what cowski suggested.

I'd be glad to continue this thread, but I'ev got to head for the airport. I'll be back on-line tomorrow sometime.

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

To an Engineer, the glass is twice as big as it needs to be.

RE: Create a reverse solid from a pocket

Have a safe trip!
We look forward to get a model from you!

MZ7DYJ

RE: Create a reverse solid from a pocket

(OP)
How would I make that dovetail cutout in NX into the solid model?

Yes I look forward to John's how to as well!!


RE: Create a reverse solid from a pocket

Refer to the model I uploaded on 1 May 14 8:53.

www.nxjournaling.com

RE: Create a reverse solid from a pocket

(OP)
Hi Cowski,

Thank you for that file!

I was referring to the original solid, it was drawn in Mastercam. I can't figure out how to cut the tapered dovetail into the solid?

Again thank everybody for their ongoing help!

John


RE: Create a reverse solid from a pocket

Quote (TheeCircle)

I can't figure out how to cut the tapered dovetail into the solid?

Are we talking about adding the dovetail to the NX solid model, or the machining process to make a physical part?

www.nxjournaling.com

RE: Create a reverse solid from a pocket

(OP)
Adding the tapered dovetail to the solid block.

RE: Create a reverse solid from a pocket

Now that you have a solid of the dovetail, you can subtract it from the block.

Unless there is something else that I'm missing?

www.nxjournaling.com

RE: Create a reverse solid from a pocket

(OP)
Thanks! Now it make sense.

RE: Create a reverse solid from a pocket

Mr. Baker,
Can you give us a sample of your previous thoughts regarding this thread?

"(................. procedure, which can be done in a single operation, with depends on deleteing all the faces of a model that are not part of the 'pocket' and then having the model be 'healed' so that all you have left is a solid body which represents the 'void'. In other words, you end up with a solid of the 'air' inside the pocket.?"

I am very interested!
Thanks,

MZ7DYJ

RE: Create a reverse solid from a pocket

2
Attached is a video showing how to use 'Delete Face' to, in essence, 'delete' the outside of the model leaving a solid representing the void or the 'air' inside the pocket. The thing to remember is that you have to use the 'Face Rule' of 'Region Faces' where you select a 'Seed Face' for the 'region', then the faces to define the boundary of the 'region', press MB2 and then you have to reselect the 'region' face(s) to include them in the faces to be deleted.

Anyway, watch the video (note even though I did this using NX 9.0. this has always worked).

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

To an Engineer, the glass is twice as big as it needs to be.

RE: Create a reverse solid from a pocket

Great, thanks a lot!

MZ7DYJ

RE: Create a reverse solid from a pocket

Here is another method of using the synchronous delete face command but with a different twist on using the selction intent and reversing the selection.

http://screencast.com/t/QEpHuvtavpy

Cheers

Si

Best regards

Simon NX 7.5.4.4 MP8 and NX 8.5 (native) - TC 8 www.jcb.com

RE: Create a reverse solid from a pocket

Yea, the trick is to select and delete all of the OUTSIDE faces and with the 'Heal' option toggled ON, it will, if the 'ends' are planar, create a solid representing the void.

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

To an Engineer, the glass is twice as big as it needs to be.

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