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Best way to draw

Best way to draw

Best way to draw

(OP)
Hi,

I have drawn the shape below.

http://i423.photobucket.com/albums/pp315/skaboy607/Uni/heat_exchanger_halfinch_2.jpg

I drew it using the line tool and then applying the desired radius I require of 38.1 mm.  I then used the 'tube' tool to create the shape with required inner and outer diameters I require.

The inner and outer radius' are smaller and larger respectively.  How can I create shape that has my desired radius but on the internal bend?

Thanks a lot

RE: Best way to draw

First, I hope you created a Sketch of the path of the tube and not just a bunch of lines and arcs since editing the sketch would be much easier.

That aside, I'm not sure exactly what it is that you're asking for.  Are you trying to get the inside bend radius of the tubes to be 38.1 mm?

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
UG/NX Museum:   http://www.plmworld.org/p/cm/ld/fid=209

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

RE: Best way to draw

(OP)
Er I think I created a sketch, all the lines are within the same sketch if thats what you mean.

Yes, that's exactly what I want.

RE: Best way to draw

Well, just go back to your sketch and edit the radius of the corners of the path of the tube by ADDING the value representing the radius of the outside of the tube to the 38.1 mm value.

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
UG/NX Museum:   http://www.plmworld.org/p/cm/ld/fid=209

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

RE: Best way to draw

Could you set up an expression that keeps that inside radius constant when you change the tube od?

RE: Best way to draw

That would be the only way to keep them related since the sketch cannot use an expression created when the tube was defined.

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
UG/NX Museum:   http://www.plmworld.org/p/cm/ld/fid=209

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

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