Why can't I convert this to one single pline?

[CADIDAC]

I am trying to convert this into one pline by using the pedit, multiple, then join command. But it won't let me. Anyideas? I saved it in 2004 format

[mdbdesign]

Use fillet R=0 to cleanup all corners-lines are not join at endpoint

[CarlB]

Also, the top right hand area with jogs included as gemnt on top of a segment within the polyline. Explode it and you'll find the extra segment.

Where that area meets the arc is where endpoints do not meet which mdbdesign refers to.

[CarlB]

Uh oh I'm replying to myself ...

I just realized that a faster way to create a closed polyline is to use the BOUNDARY command rather than trying to find the problem area.

[mdbdesign]

Don't forget to delete old stuff from under

[CADIDAC]

Thanks a lot, boundary worked great, what is the difference bwtween a ragion and a poly line?

[CarlB]

They are a lot more different than similar. They are similar in that you can use either with the EXTRUDE command but otherwise they are quite different. A region is a planar surface that can be used in some solids editing commands like UNION. A lwpolyline is also on a single plane, but is a linear object. Regions are more used as a step in 3d solids modelling. Lwpolylines are used for lots of 2d purposes.

[Ronrico19]

I've always made my 3d objects by drawing it in 2d then pediting it to single polylines then extruding or revolving it. I taught myself 3d so that was the first thing I found that worked. Because of how much I'm forced to use pedit I made myself a handy little pedit>multiple button. I also made a 3d view flyout which is really helpful.

[CADIDAC]

What do you do if 07 reconizes it as a single continous polyline for a complex object but when extruding it turns them into planes and a unified volume?

[Ronrico19]

I've never had that problem. It makes it like what it does when you explode a 3d object?