Tangent face mating

[cubalibre000]

Hi,
how do I mate the face cone on the cylinder with the sphere and the hole of the sensor?
The sphere must tangent to the face cone and coaxial.
The sphere must tangent with the edge of the hole and coaxial.
I attach assembly and image.

Thank you...

 

[JohnRBaker]

OK, attached is an assembly which is configured as I think you're looking for. The trick is to use Align to line-up the sphere with the hole in the cylinder and then Touch with edge of the hole and sphere. Then Align the cylinder with cone and then Touch between the sphere and the cone.

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

http://www.siemens.com/plm

http://www.plmworld.org/museum/

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

 

[cubalibre000]

Hi John,
perfect.
John...I need to understand better touch and align.
With yours examples I think that align is used to align geometry axis or point in the sphere case between them and touch used to create contact from external geometry.
Sincerely I would like an improvement as I attach...to understand better which geometry is concerned or to deselect directly.

 

[cubalibre000]

Sorry...this is the attached image...

 

[JohnRBaker]

What you said is exactly what I did, I 'Aligned' the center of the sphere with the axis of the cylinder and then asked for a 'Touch' constraint with the face of the sphere and the edge of the hole. I then 'Aligned' the cylinder with the axis of the conical face and then again asked that the face of the sphere 'Touch' the face of the cone.

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

http://www.siemens.com/plm

http://www.plmworld.org/museum/

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

 

[cubalibre000]

Hi John,
I'm trying with the original assembly, but I'm not able to do.
I attach the real assembly.
I would like that the component 4_109585_00 coincident to the sphere.

Thank you...

 

[JohnRBaker]

No attachement.

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

http://www.siemens.com/plm

http://www.plmworld.org/museum/

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

 

[cubalibre000]

Sorry John,
attached now..

 

[JohnRBaker]

I think I see at leat part of your problem. Why did you create 4_109585_00.prt as two bodies inside the SAME part file instead of just creating it as one and adding the part to the assembly twice?

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

http://www.siemens.com/plm

http://www.plmworld.org/museum/

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

 

[cubalibre000]

Because we buy with this code a couple of sensor.

 

[JohnRBaker]

I'm sorry as to how you buy them, but Assembly modeling works much better, particularly if you're going to be constraining the parts in an Assembly, if you accurately simulate the actual physical structure of your products. How items are purchased and tracked can be better accomplished by something like TeamCenter and the various purchasing applications that it can interface with.

That being said, if you need the assembly Parts List to reflect that, despite the fact that an item may appear twice in the Assembly structure, it will only appear ONCE in the Part List itself, that can be accomplished without much hassle.

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

http://www.siemens.com/plm

http://www.plmworld.org/museum/

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

 

[JohnRBaker]

Attached is an assembly based on my approach, including breaking the one component into a single body and adding it twice. I've also included a drawing where this item only shows up as a single item in the Parts List.

BTW, if you are having problems getting small parts, like the ball bearings, to properly constrain, start off with them near where their final position/location will be (just drag them around until they are close, which you can do while you're in the Assembly Constraints dialog by just place your cursor over the component, pressing MB1 and dragging the component).

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

http://www.siemens.com/plm

http://www.plmworld.org/museum/

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

 

[cubalibre000]

Hi John,
thank you.
I see you have add two properties to one component.
CALLOUT e DB_COMP_HANDLE.
The purpose of the two properties and their relative value.

Regards..

 

[JohnRBaker]

I never added THOSE properties. I did however add a do-not-section attribute to the ball bearings and a do-not-include-in-parts-list attribute to one of the components that you didn't want to show as qty 2, but rather just as 1.

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

http://www.siemens.com/plm

http://www.plmworld.org/museum/

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

 

[Hobbes1069]

I need to mate a sphere with a cone but I'm using NX2 and could not open the attached files.

To simplify my assembly, assume that I need to mate a sphere (such as a ball bearing) with a countersunk hole where I should get a line of contact in the shape of a circle.

I've tried mating, align, and tangent but nothing thus far as achieved the desired result.

Any tips?

Thanks,
Richard

 

[JohnRBaker]

OK, for NX 2.0 you can't actually Mate a Sphere to be tangent to the Conical face of the countersunk hole. The best that you can do is to create some addition Datums (Planes and Axis) and use these to perform the mate to. To see what I mean look at the attached NX 2.0 example (I'm having a problem with a slow up-load time so I'm going to have to load the assembly and the parts one at a time).

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

http://www.siemens.com/plm

http://www.plmworld.org/museum/

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

 

[JohnRBaker]

Here's the next part.

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

http://www.siemens.com/plm

http://www.plmworld.org/museum/

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

 

[JohnRBaker]

And the last (just put them all in the same folder and open Assy.prt).

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

http://www.siemens.com/plm

http://www.plmworld.org/museum/

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

 

[Hobbes1069]

Thanks!

For some reason when I used 'Mate' the sphere shot through the plane even after I backed it off away from the plane but I tried using 'Tangent' instead and it worked fine.

I don't know why it would matter but I actually have a cylinder with a spherical end but it seemed like it was trying to mate it tangent to the back side of the "sphere" but in my case the back side doesn't exist... Oh well.

Richard

 

[JohnRBaker]

With the old Mating Conditions, you can't use 'Mate' to place a curved surface tangent to some other face. That's what 'Tangent' is for. Of course, once you move to Assembly Constraints, you'll note that both 'Mate' and 'Tangent' have been replaced with a single constraint called 'Touch', which works with any shape.

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

http://www.siemens.com/plm

http://www.plmworld.org/museum/

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