Curved Lamp Shade in solidworks? 1

[doncaballero]

I have been trying to create the attached, curved lampshade in solidworks. Each change in direction will be its own individual piece in reality - i just can't get the layout down. Nothing seems to handle running the loft and the curve at the same time.
Thanks for looking!

 

[Nella95]

Have you thought about creating a begninning and ending sketch and running a sweep through the two profiles? (That's one way to do it.)

 

[doncaballero]

Did you mean something like this?
I can't think of how to get a sweep to work.
Thanks a ton for the response.

 

[Nella95]

Yeah, I'm incorrect though - I think it's a lofted profile.

 

[CorBlimeyLimey]

don ... Your first image shows the shade as being convex. The second image shows a concave segment. Which shape are you actually trying to create?

 

[CorBlimeyLimey]

I would create the segment as a sheet metal part so that it could be flattened.

 

[ctopher]

I played around a bit, attached is a simple file to start from. Maybe what you are looking for?

Chris
SolidWorks 10 SP4.0
ctopher's home
SolidWorks Legion

 

[CorBlimeyLimey]

Image attached in case you don't have SW2011

 

[doncaballero]

Thank you for your responses! It's just the angle from the sweep image that makes it look concave - it is a dome.
I was able to get it to work as a whole using the loft command by creating the I/D and O/D hexadecagon for the top and bottom with 4 spline curves as supports.
My problem was every time i tried to create an individual leaf, there ended up being a diamond shaped hole in between the adjacent plane, or piece.
Still working out the kinks. Thanks Again!!!

 

[CorBlimeyLimey]

Give the sheet metal method a try. It is very simple and as I mentioned before, allows the segment to be flattened for cutting.

 

[kgwhipp]

Here's one attempt I made.

The key trick is using a Derived sketch to add the identical guide curve profile to a plane located at a 360/12° offset.

I then used a boundary surface and a cheap body copy to make the whole shape. You might want to do a better job and do a full set of 12 guide curves and do a proper loft/shell.

Up to you.

Good luck!

-Kevin

 

[doncaballero]

CorBlimeyLimey - I tried the sheet metal method, and it worked perfectly. It must have been that I was defining the curve with an arch at the outer edge of the shape when i ran the loft. Very slick approach, though. Thanks a ton. Now i have a flat DWG!

kgwhipp - i am interested in your approach, but i don't have SW11 (of all the things solidworks can do).

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