Need Help Blending Surfaces

[teekay]

Hello, i'm not a pro at modeling and i need some help from you guys . I'm trying to blend to surfaces together and ProE wont let me . The protrusion on the left is just a circle 3" in diameter .1" thick and the protrusion on the right is made out of 2 circles (2" dia tangent to the center sketching plane) with tangent lines connecting them and then erasing the unnecessary lines. Basically what i'm trying to do is to model a 3" pipe being crushed/squished to resamble to figure on the right, but going from a circle, to the oval shape. I tried variable section sweep with a trajectory using a sketched line, blending surface... etc. and every time pro gave me some king of error ... please can someone help me model this part and what approach should i take to model it. Your Help is greatly appreciated, thank you.

-Tom

View attachment 4393

 

[wsylvester]

try swept blend


you need the same number segments on each each.. so your circle will need 4 to sync up with the oblong<4>


if it's all twisted then check your start point

 

[wsylvester]

if you want the thickness the same.. shell it instead

 

[james.lynch]

Hi,


I've uploaded a part to help.. WF3.02007-11-11_074132_example.prt.zip


View attachment 4398


it can be done easily with a swept blend or a boundry blend - the key and said above is to have 4 breaks in your circle - you will already have 2 by default (split by the horizontal of you sketching plane - add two more at 90 and 270 (break the sketch or sketch 4 quadrants of a circle) to get a smooth surface, I then rotated my extruded surface by 45 degrees allowing me to control the position of my control points within boundry blend


hope this helps!


James
Edited by: james.lynch

 

[mahtab_msa]

i also tried to make this part . here is the model made in WF 2

2007-11-11_121813_swept_blend.prt.rar

If you use Swept Blend,in addition to having same segments in all
sections, you also need to have four points on trajectory for four
cross sections for your case.

View attachment 4399


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[wsylvester]

I like the swept blend cause you can curve it real easy too





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[jraquet]

You can use a boundary blend:


View attachment 4408


Tangency constraints.


or a BB with second direction contols


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[design-engine]

Do that in Sheetmetal!! Thats more of the challenge. I think I remember do that a couple years ago on this forum.

 

[james.lynch]

Do that in Sheetmetal!! Thats more of the challenge. I think I remember do that a couple years ago on this forum.

Why?


James

 

[design-engine]

too easy to just do it with boundary blend. Try it using the Sheetmetal boundary blend.