topic Sweeping command issue in AutoCAD Forum

Sweeping command issue

Anonymous — Fri, 04 May 2018 06:42:15 GMT

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

Re: Sweeping command issue

Patchy — Fri, 04 May 2018 13:39:57 GMT

Sweep and twist it 90 degrees

Re: Sweeping command issue

Anonymous — Fri, 04 May 2018 14:11:26 GMT

how did you do this? i tried and failed.

Re: Sweeping command issue

Anonymous — Fri, 04 May 2018 14:15:22 GMT

see snips attached

Re: Sweeping command issue

Patchy — Fri, 04 May 2018 14:17:29 GMT

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.

Re: Sweeping command issue

Anonymous — Fri, 04 May 2018 15:07:23 GMT

what coords did you use.

Please see snipit

Could you make a vid by any chance?

Re: Sweeping command issue

Patchy — Fri, 04 May 2018 15:25:10 GMT

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.

Re: Sweeping command issue

Anonymous — Fri, 04 May 2018 15:40:33 GMT

thanks man. does not want to work.

What version are you using?

Re: Sweeping command issue

Patchy — Fri, 04 May 2018 15:44:22 GMT

2008 Autocad

Re: Sweeping command issue

j.palmeL29YX — Fri, 04 May 2018 17:37:33 GMT

@Patchyschrieb:
2008 Autocad

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

Re: Sweeping command issue

j.palmeL29YX — Fri, 04 May 2018 18:05:32 GMT

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