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Loft with a Hole in the Section 2

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Tugummi

Mechanical
Apr 9, 2018
2
Does anyone know of a way to create a loft on a set of curves including a hole?

Attached is an image of the curves I'm working with. They are irregular shapes. I've been messing with some of the surface features (mainly loft) for a while and I can't figure out if it's possible to include the hole in a single loft-like operation. Can I select all of the bottom curves as the starting point, then select all of the top curves to be the end point some way? Does a hole basically screw up the boundary conditions and make the solution impossible?

I can loft the outer curve and inner curve separately then subtract the hole, but I'm looking for a more concise solution.

Thanks!
 
 http://files.engineering.com/getfile.aspx?folder=51e07129-ba09-4fa7-8524-77447240ab70&file=NXSolid.png
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What are you modeling? It looks like a section of a tree-trunk. Like one of those tables made from a slice of a Cypress tree:

football-coffee-table-shaped-tablesfootball-tables-herringbone-rh-timber-pinterest-wood-for-top-search.jpg


John R. Baker, P.E. (ret)
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You can not, as a general rule , create freeform objects with interior holes-s , in one step.
( There is to my knowledge one exception which is the Bounded plane feature. - not "freeform" but a surface.)
In this case you must create the outer and the inner as separate features and combine at a later stage.
in this case i would imagine that you should use the alignment by points, I imagine that the other methods will not do what you expect.

Regards,
Tomas

 
Thanks Toost.

And John, it's a leg muscle, the hole is where the model of the bone will be incorporated. There are thousands of these cross sections for the whole leg, I only included two of them to get the idea across. Since there are so many I was looking towards automating the process, which is why I wanted to see if the operation could be simplified.
 
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