Sweeping command issue

[Anonymous]

I am busy designing a Haul road under ground and my sweeping command is not sweeping correctly .

My path is a 3d polyline.

Please Help...

File is attached

[Patchy]

Sweep and twist it 90 degrees

[Anonymous]

how did you do this? i tried and failed.

[Anonymous]

see snips attached

[Patchy]

That was how I did it, after sweep command, I chose twist and used 90 degrees, it took about 30 seconds to complete that task.

Try the red 3dpoly and see if it works for you.

[Anonymous]

what coords did you use.

Please see snipit

Could you make a vid by any chance?

[Patchy]

I'm using your drawing, copy the path and the section of the tunnel, I always leave the original alone.

I cannot make videos, but you can see all the commands I used, nothing special.

[Anonymous]

thanks man. does not want to work.

What version are you using?

[Patchy]

2008 Autocad

[j.palmeL29YX]

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@Patchyschrieb:

2008 Autocad

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In newer AutoCAD versions this does not work correct anymore.
Here a screencast how I got an approximated solution in ACAD 2018:
https://autode.sk/2KBiALx

But attention: A good value for the twisting you must find by experimenting. A value a bit smaller than 105° (I only did guess) can give a better result. A correct solution is not possible this way. (This also applies to the solution shown above).

cadder

[j.palmeL29YX]

A better result you will get this way:

Put some sections (the tunnel contour) along the spline. This I din't show in the screencast. Then use the loft command, from one section to the next next next ... Then choose the Path option and select the Spline. (Now you have to wait some seconds - voila)

https://autode.sk/2jutcPL

HTH

cadder