CAD Forum discussion (EN) : 3D poylines with arcs ???

CAD Forum discussion (EN) : 3D poylines with arcs ??? https://www.cadforum.cz/forum_en/ Sat, 05 Sep 2026 08:05:43 +0000 Fri, 28 Jun 2024 08:54:01 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://www.cadforum.cz/forum_en/RSS_post_feed.asp?TID=14326 <![CDATA[CAD Forum discussion (EN)]]> https://www.cadforum.cz/forum_en/forum_images/web_wiz_forums.png https://www.cadforum.cz/forum_en/ <![CDATA[3D poylines with arcs ??? : Hello Kent and Vladimir, at first...]]> https://www.cadforum.cz/forum_en/forum_posts.asp?TID=14326&PID=39396&title=3d-poylines-with-arcs#39396 Author: philippe JOSEPH
Subject: 14326
Posted: 28.Jun.2024 at 08:54

Hello Kent and Vladimir, at first I was happy that the 3Dfillet utility was working but it worked only one time for a "radius" and no more on the rest of the 3D polyline, then I realized when trying to place a radius dimension that it wasn't a radius but a lot of little lines.

Then I did a test by exploding my 3D polyline and manually filleting R:4000 each and every corner and it worked fine even if 3D without having to set an UCS individually for each fillet.

Then I did the command JOIN on the assembly of lines and arcs but it didn't work as : non coplanar I suppose.

Eventually see may AutoCAD file : DISCOVER THE ANIPATH COMMAND to see what is the use of my 3D polyline.

]]> Fri, 28 Jun 2024 08:54:01 +0000 https://www.cadforum.cz/forum_en/forum_posts.asp?TID=14326&PID=39396&title=3d-poylines-with-arcs#39396 <![CDATA[3D poylines with arcs ??? : philippe JOSEPH wrote:.......]]> https://www.cadforum.cz/forum_en/forum_posts.asp?TID=14326&PID=39394&title=3d-poylines-with-arcs#39394 Author: Kent Cooper
Subject: 14326
Posted: 27.Jun.2024 at 22:16

philippe JOSEPH wrote:

.... I have tested various 2D polylines with arcs to be joined with PEDIT and it doesn't work. ....

If they are not co-planar, join them together with the JOIN command, not with PEDIT. The result will be a Spline. I imagine the 3D fillet utility you refer to is just an automating of the same thing, changing the object type of 3D Polylines that you apply it to.

]]> Thu, 27 Jun 2024 22:16:46 +0000 https://www.cadforum.cz/forum_en/forum_posts.asp?TID=14326&PID=39394&title=3d-poylines-with-arcs#39394 <![CDATA[3D poylines with arcs ??? : Hello Vladimir and Kent, I have...]]> https://www.cadforum.cz/forum_en/forum_posts.asp?TID=14326&PID=39390&title=3d-poylines-with-arcs#39390 Author: philippe JOSEPH
Subject: 14326
Posted: 26.Jun.2024 at 10:22

Hello Vladimir and Kent, I have tested various 2D polylines with arcs to be joined with PEDIT and it doesn't work.

I will try the 3Dfillet utility if I find it.

I have found it, tested it and it works on the 3D polyline that I use in the ANIPATH command.

I hope that it will improve the fluidity of my videos.

Edited by philippe JOSEPH - 26.Jun.2024 at 10:32]]> Wed, 26 Jun 2024 10:22:03 +0000 https://www.cadforum.cz/forum_en/forum_posts.asp?TID=14326&PID=39390&title=3d-poylines-with-arcs#39390 <![CDATA[3D poylines with arcs ??? : You cannot fillet 3D polylines...]]> https://www.cadforum.cz/forum_en/forum_posts.asp?TID=14326&PID=39386&title=3d-poylines-with-arcs#39386 Author: Vladimir Michl
Subject: 14326
Posted: 25.Jun.2024 at 23:21

You cannot fillet 3D polylines using internal AutoCAD tools but you can do that e.g. with the 3Dfillet utility - see Download.]]> Tue, 25 Jun 2024 23:21:49 +0000 https://www.cadforum.cz/forum_en/forum_posts.asp?TID=14326&PID=39386&title=3d-poylines-with-arcs#39386 <![CDATA[3D poylines with arcs ??? : You should be able to construct...]]> https://www.cadforum.cz/forum_en/forum_posts.asp?TID=14326&PID=39385&title=3d-poylines-with-arcs#39385 Author: Kent Cooper
Subject: 14326
Posted: 25.Jun.2024 at 22:12

You should be able to construct the 3D path in pieces, changing the UCS as appropriate to each portion, and if the ends of the pieces meet accurately, JOIN them together in a Spline. Whether there's anything out there to automate any of the steps, I don't know.]]> Tue, 25 Jun 2024 22:12:40 +0000 https://www.cadforum.cz/forum_en/forum_posts.asp?TID=14326&PID=39385&title=3d-poylines-with-arcs#39385 <![CDATA[3D poylines with arcs ??? : Yes Kent I know that it's...]]> https://www.cadforum.cz/forum_en/forum_posts.asp?TID=14326&PID=39383&title=3d-poylines-with-arcs#39383 Author: philippe JOSEPH
Subject: 14326
Posted: 25.Jun.2024 at 17:08

Yes Kent I know that it's normally not possible but from what I see in the image of the TIP N£ 14154 ...

Could it come from an other software or is there any other solution like a CADForum application.

I would be very interested to get the way to do it for example for the 3D closed polyline that I use to navigate around 3 D solids when using the ANIPATH command.

Edited by philippe JOSEPH - 25.Jun.2024 at 17:11]]> Tue, 25 Jun 2024 17:08:24 +0000 https://www.cadforum.cz/forum_en/forum_posts.asp?TID=14326&PID=39383&title=3d-poylines-with-arcs#39383 <![CDATA[3D poylines with arcs ??? : 3D Polylines cannot contain arc...]]> https://www.cadforum.cz/forum_en/forum_posts.asp?TID=14326&PID=39380&title=3d-poylines-with-arcs#39380 Author: Kent Cooper
Subject: 14326
Posted: 25.Jun.2024 at 13:35

3D Polylines cannot contain arc segments. Help for the command is very explicit about that:

AutoCAD 2025 Help | 3DPOLY (Command) | Autodesk

Edited by Kent Cooper - 25.Jun.2024 at 13:38]]> Tue, 25 Jun 2024 13:35:42 +0000 https://www.cadforum.cz/forum_en/forum_posts.asp?TID=14326&PID=39380&title=3d-poylines-with-arcs#39380 <![CDATA[3D poylines with arcs ??? : I can see in the last TIP N° 14154...]]> https://www.cadforum.cz/forum_en/forum_posts.asp?TID=14326&PID=39372&title=3d-poylines-with-arcs#39372 Author: philippe JOSEPH
Subject: 14326
Posted: 24.Jun.2024 at 14:04

I can see in the last TIP N° 14154 :

How to add directional arrows to 3D polyline linetype and to spline?

what I suppose to be 3D polylines with arcs but I'm not able to do this.

Is it possible because I can see nothing on the internet ?

]]> Mon, 24 Jun 2024 14:04:57 +0000 https://www.cadforum.cz/forum_en/forum_posts.asp?TID=14326&PID=39372&title=3d-poylines-with-arcs#39372