Can't get this thing to Loft.... Help??

AutoCAD 2007 file format. working in AutoCAD 2008. Can't get this stupid thing to LOFT. Any ideas? Thanks for the help.

Wall Stone.dwg

Hmm. "The selected entities are not valid". I can get a loft between the two profiles using cross-section only, but add the path and no-go.

I've got the same result as CADTUTOR

I also tryed to create a very thin region/polyline from the shape in order to do a sweep but no luck.

Yeah. I figured this would be a breeze. When I don't use the guides, then the two polylines loft easily. I didn't know if I was doing something wrong or not. Guess it's just the same old situation with AutoCAD not being able to do as much as it SHOULD be able to.

I don't think this is how I would create a stone. Your guides must be smooth (tangent).

Wall Stone.zip

Well actually it's a wall decoration that holds candles in my apartment. So can you explain to me how you created it? I would love to learn. Thanks for checking this out for me JD.

For the record I am recreating my apartment housing that I live in, so this is why I am doing this. Here's what I have from scratch. Took about 1.5 hours... started it last night. :wink:

Chat posts moved here: Styk's Apartment

StikFace

When you need "loft" something the best way is making more sections with slight differences in size so your loft shall be more smooth. Use equals spaces.

Regards.

Wall Stone-Lofted.dwg

... the best way is making more sections...

Not sure I would agree that is the best method.

... Use equals spaces.

Search Ed Eaton Curvy Stuff Tutorials DiMonte Group.

Yet using guides or paths in lofting (AutoCAD) I keep the idea with more sections because that is much more precise.

Look like the ships are designed and you see why. See topographic planes.

The "guides" or "paths" are generic and don't envolve the quite precision to "smooth" the curves but only when you know all points of curves in all axes.

I see the tutorial of Mr. Ed Eaton. It's Solidworks. I don't work with Solidworks.

Thanks everyway.

I see the tutorial of Mr. Ed Eaton. It's Solidworks. I don't work with Solidworks.

 

Thanks everyway.

Geometry is geometry - doesn't matter what CAD program - the principles are the same. I could go into quite a bit of detail on why more sections is not equal to better, but Ed does such a good job of it I didn't want to spend the time recreating the knowledge base. If you ever get a chance to see Ed at SWW I can highly recomend it.

hi all,

can you show me the way to subtract the solid face created by the "LOFT" command, I create the box, but i want to subtract it with a polyline? can i do it?

...can you show me the way to subtract the solid face created by the "LOFT" command...

You forgot to attach the file. Is this a new problem or a continuation of the problem that started the thread?

not sure if this project is still a running project or not but if you haven't got you lofting to work yet here is a thought you might wanna try, i changed the guide lines to Splines using the pedit command and to me they seem to loft just fine using the splined guide.

thanks for all, now i can do it.

May be it's too late for my reply. But I have just had a sort of the same "stupid" problem when trying to loft. And after trying 100 different things I've found a solution: SPLINE DE POLYLINE used as a guide... Don't ask me why I'ma beginner.

I keep the idea with more sections because that is much more precise.

Can you post an example that exhibits this behavior?

I see the tutorial of Mr. Ed Eaton. It's Solidworks. I don't work with Solidworks.

I work with several CAD programs. CAD is a tool. Geometry is Geometry, the tool doesn't change that.

This is just a quick example of what was happening to me. It took almost an hour to figure out this solution. I guess it when I read a post in this forum, where somebody said something about tangents. And then I thought this possibility. It's strange that when you read the Help of AutoCAD 2008 they clearely specified that a 2D polyline or 3D polyline CAN be use as a guide to loft...

Drawing1.dwg