unable to revolve selected item...help

[gogolwriter]

Need help revolving a 2d polyline into a 3d solid. Every time I apply the revolve command and select the 2d polyline and pick my axis points (start and end) it states that "unable to revolve selected object". I have no problem if I want to extrude the same object but have no response with the revolve command except that statement, "unable to revolve selected object"

[ReMark]

Attach a copy of the DWG file to your next post. Someone here will take a look at it.

[gogolwriter]

Here is the dwg that I'm having trouble with the revolve command...any help with a solution to this would be great!

right profile.dwg

[nestly]

Looking at the screenshot, it appears there may be multiple vertices along the revolve axis, indicating that it's likely not straight, which I don't believe will work.

[gogolwriter]

cleaned up the vertex on the axis line but still unable to revolve polyline object

right profile.dwg

[Dadgad]

Welcome to CADTutor.

 

I deleted the few extra vertices on the revolve axis, ran OVERKILL and plumbed the Y axis and the bottom edge, but still no luck.

[nestly]

I think there's just too many vertices...

[gogolwriter]

read that a lsp / lisp might clean up the object....any Ideals how to use a lsp...this concept is new to me

[Dadgad]

The problem is not running the lsp, the problem is finding one that will do what you need it to.

Perhaps somebody who sees this will have one and share it with you.

[eldon]

Having an idle minute or two, and never having used Revolve before, I thought I would have a go. I got a 3Dsolid.

[ReMark]

Attach a copy of the DWG file to your next post. Someone here will take a look at it.

See, what did I tell you? These guys are not only persistent....they're good too.

[eldon]

I don't know why I was able to get it to revolve, when newer versions cannot.

 

It did increase the file size from 245kb to 11Mb in r2000.

 

Perhaps 16g of memory helps

[Dadgad]

Having an idle minute or two, and never having used Revolve before, I thought I would have a go. I got a 3Dsolid.

 

Well done eldon!

 

I only have 4G on the laptop I was using, will give it a go on my little 16Gb Acer on the morrow.

[nestly]

I don't know why I was able to get it to revolve, when newer versions cannot.

 

It did increase the file size from 245kb to 11Mb in r2000.

 

Perhaps 16g of memory helps

 

Now I'm curious... while you didn't state which version of AutoCAD you used, the assumption is you used 2002 since that's in your profile. What procedure did you use to open/modify it since the posted file is 2013 dwg format?

 

I only tried with ACAD2014 and 12GB Ram.

[Dadgad]

I just tried it again on 2013 with 8GB of RAM, and was unable to get a Solid,

but was able to generate a Surface Revolve.

It seems like if the issue is a shortage of firepower, the software should

clarify that, as 'Unable to revolve selected item' makes it sound like there is

an issue with the ITEM, which is apparently not really the case.

 

DWGTrueView maybe to open it and resave it eldon?

Looks like he did it on r2000. Old school.

Edited December 15, 2013 by Dadgad

[eldon]

Now I'm curious... while you didn't state which version of AutoCAD you used, the assumption is you used 2002 since that's in your profile. What procedure did you use to open/modify it since the posted file is 2013 dwg format?

 

I only tried with ACAD2014 and 12GB Ram.

 

Yes, I have to convert nearly all downloaded files, and I am currently using DWG TrueView 2013 to convert to r2000 format. My computer is Windows 7 with 16GB Ram and VMWare running Windows XP for my AutoCAD 2002.

[nestly]

It seems like if the issue is a shortage of firepower

 

Actually, I believe eldon's suggesting that the problem is with "newer versions" is correct. I used AutoCAD2014 to save it down to AutoCAD2000 file format and still got the unable to revolve error on my best workstation (16GB RAM). Next, I opened it in AutoCAD2005 on a 6yr old XP box with 4GB RAM (only 2GB available to AutoCAD) and sucessfully revolved it into a solid. The file ended up 8.64MB. Either way, I would still suggest that the polyline needs a few thousand vertices weeded out.

[gogolwriter]

Well this is a bit confusing. I've only been studying autocad for 5 months but it seems that your saying that you had success revolving the polyline with a much older version of autocad but new version run into difficulty. It make you wonder how earlier versions approach this profile polyline? I'll still have to sort out this revolve issue...if only to continue to increase my cad skills....thanks for all of your input on this issue!

[nestly]

Whether or not a particular version "can" revolve it, IMO it needs to be smoothed out to make it practical.

 

I would start another topic asking for assistance reducing the number of vertices in the profile/polygon. There are lisps (specifically one named weed.lsp) that can eliminate unnecessary vertices, but you'll have to specify what your control points for the profile are.

Edited December 15, 2013 by nestly

[ReMark]

How was the profile created in the first place?