topic Re: Sweep Profiles around path without alignment in AutoCAD Forum

Sweep Profiles around path without alignment

KB2408 — Mon, 23 Sep 2019 15:31:12 GMT

Hello there,

I am trying to sweep some profiles (see attached photo) around a path. When I choose to not align the profiles I get the msg "Path curve is coplanar with or tangent to the plane of the profile curve. Unable to sweep 1 selected objects"

how can I sweep these profiles and keep them in their position?

Thank you for your help!

The dwg. file is also attached

Re: Sweep Profiles around path without alignment

Anonymous — Mon, 23 Sep 2019 16:33:09 GMT

You want to align them with the path. Is this the result you are looking for?

Re: Sweep Profiles around path without alignment

KB2408 — Tue, 24 Sep 2019 06:26:44 GMT

Thank you for your reply @Anonymous

Although it seems yes, that what I'm looking for, but I can't judge 100%! Could you share the dwg. file please.

Actually I tried the following: when I selected all the profiles at once to sweep them and choose the path, it works! the issue is when I am trying to sweep each profile alone, then the created object (from this profile) will be shifted to align with the path; and when I try to choose "no" by the option "alignment" I get the msg ""Path curve is coplanar with or tangent to the plane of the profile curve. Unable to sweep 1 selected objects"

Re: Sweep Profiles around path without alignment

pietro.pedone — Tue, 24 Sep 2019 08:13:18 GMT

Hi @KB2408, I think that I got the same result as @Anonymous (find my file attached)!

Also, take a look at this screenshot:

The Alignment option of the SWEEP command only rotates the profile to align it to the sweep curve. However, the profile will be moved anyway closer to the sweep curve--regardless of the value chosen for Alignment.

The error message that you were getting was due to the fact that the start point of the sweep path was such that it had a tangent vector actually coplanar to the profile plane, and the profile was throwing an error for this reason. I had to explode the path to get rid of the error message.

Hope that clears things up! Of course, please mark my answer as Solution if it helped you! 🙂

Re: Sweep Profiles around path without alignment

pietro.pedone — Tue, 24 Sep 2019 13:50:56 GMT

Hey @KB2408 ,

Just checking back about my post earlier today. Did it help you? If so, it would be great if you could mark it--or some other user's answer--as a Solution! 🙂

Otherwise, just update this thread with any additional info and we'll be happy to continue helping you 🙂

Re: Sweep Profiles around path without alignment

KB2408 — Tue, 24 Sep 2019 15:54:09 GMT

@pietro.pedone much appreciated 😄

one more question please, is there any way where I can sweep a profile aligned with a path and to keep the profile (or in this case the generated object) in its place and not moving it close to the path?

Re: Sweep Profiles around path without alignment

dieters — Tue, 24 Sep 2019 16:01:51 GMT

@Fadi.Alkhoury ,

If the SWEEP command (/Align or /Twist) is not satisfactory, try using the EXTRUDE /Path command. These commands work a little differently in alignments: For EXTRUDE, the path will align to the profile, while SWEEP will align the profile to the path. Also, the profile rotation/twist works differently. For threads, I use EXTRUDE /Path.

Dieter