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curved tunnel uphill

  • Thread starter Thread starter GiGa
  • Start date Start date

GiGa

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I would need some tips to shape the excavation of an uphill tunnel that, however, seen in the plant has a slight curve.. .
I hope the attached sketch is quite clear. . .
 

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it was so simple (at least for me). .
The problem is that I should give guidelines, but getting them properly is not easy. . .
If you have any idea how to use the loft...
 
perhaps even with a sweep whose trajectory is given by a 3d sketch. Of course it's not a job recently, at least for me...

I now reread your post above: "at least for me" is not ironic at all referring to your previous post, I came like this.
 
One step forward I did it... with the loft...
But the loft gives me two problems:
1 - "short" problem: the initial profile, however thin, is not zero... then there will always be a staircase (as small)
2 - not acceptable problem: the loft, because of the tangences, does not overlap exactly to the desired path. . .

In the images we see the version built with two works (a vertical excavation that follows the curve and the loft for the climb)... also with a loft created with one or two guides (lateral or central) from sketch3d, the problem of the tangences does not allow me to reach the desired solution.. .

I can't use the sweep because the start and end profiles are different.. .
 

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  • Rampa2Top.webp
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I see in the first image that you posted, that at least for one verse the walls are "plane", in the sense that they do not slip.
then it is simple to create a solid with the shape of your tunnel, insert it into a fictitious set, derive and use the solid for emptying.
if you have at least inv2010 you can create it in the same ipt and then subtract it with the joint command.. .
 
if I wasn't clear, post the file with the views and send it back to you by the method I told you
 
what I feared then remains but the loft.
Okay, sorry for the slowness of the answers, but I'm a little messed up at this time. . .
in the end I solved with a simple digging loft to which I assigned the 4 sketches3d (replaced from intersections of the excavation projections) as guides... and the result looks perfect. . .
I don't know if for the fact that I used 4 guides instead of the 2 I used before or simply because I erased everything and I started from scratch, but the result no longer has the tangence problems I had before... So it's okay like this:wink:
thanks to the support. :finger:
 

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