Molding on Barrel Ceiling


Adam_Gibson
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Although the molding will only be 1/2" thick, I assume what I'm attempting is to coffer a barrel ceiling. I've tried with ceiling planes and with polyline solid. I prefer the look of the p solid because the arch can be much more fluid if I break the arch (see close up of yucky barrel just below the more fluid one). Either way, I can't figure out how to apply molding to either so it matches the arch.  Heck, I wish I could just apply cabinet doors to form the arch. Any suggestions would be much appreciated. 

LANZA KITCHEN 01.plan

Untitled 01.jpg

Untitled 1.jpg

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39 minutes ago, Adam_Gibson said:

Heck, I wish I could just apply cabinet doors to form the arch.

You can use a bow front cabinet-sides and back as just openings. Delete a few surfaces in 3D, convert to a symbol and rotate the symbol. Getting the curves right is likely easier done other ways where you can use a CAD detail to get the curves. But it can be done.

barrel.png

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29 minutes ago, solver said:

These are molding polylines. I used a square edged molding, but they could have a edge profile.

 

ct1.thumb.png.bb3095c3fe6b9f6b2ad74eb162079019.pngct2.thumb.png.7d671fc48b2876e66feefc2631743eec.png

Eric, would you mind explaining your steps? I'm having a difficult time getting molding lines to generate in elevation view, which is where I assume you did this? Please?

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Draw Arc in elevation following ceiling.

 

Convert Curve To Polyline to increase the number of segments making the molding smooth.

 

Convert to 3D Molding Polyline.

 

Space as required.

 

I might make the molding into a symbol for easier placement.

 

For the pieces running front to back, you will need a profile with a curved bottom. If you make this from a p-solid, or a symbol from a molding, you may be able to copy and rotate around the radius of the ceiling.

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16 minutes ago, solver said:

If you make this from a p-solid, or a symbol from a molding, you may be able to copy and rotate around the radius of the ceiling.

 

Looks like a p-solid can be rotated in elevation, but not a molding or symbol -- can't seem to select them.

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ct1.thumb.png.f8ad72e28a372c71faba179f259254ec.png

 

Molding Polyline arched to match ceiling. Converted to a symbol.

 

Used it as a background to draw a profile against so I could match the curve. Converted profile to a p-solid.

 

Placed the center p-solid, then placed a point marking the radius. Used Transform/Replicate to copy and rotate the p-solid about the point.

 

 

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16 hours ago, solver said:

Looks good -- how did you do it?

 

I followed your instructions! Although, I couldn't figure out the part about a  point marking the radius and using the Transform/Replicate to copy and rotate the p-solid about the point. I thought I had a good handle on that tool, but apparently not. Thank you so much!

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How did you place these? That seems like the tricky part of this process.

 

ct1.thumb.png.5327914c2dd771247a196c0569b9d612.png

 

Here is what I did. Took the radius of the ceiling and placed a point there. Selected the center trim and copied/rotated it around the point. Taking a couple of angles gave me the info needed to space things evenly.

 

ct2.thumb.png.47619f911d62d0357c9694b1e9ac43de.pngct3.thumb.png.693a5a1f810c4fa3f60f389590aeb8a4.pngct4.thumb.png.8da9dbb8f8d6dc76278b9c7b172e89c7.png

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I see! That's a much better method. I simply did it manually. Once I'd done the left half I copied and reflected about the center object. My method would have resulted in hair pulling if there'd been more than a couple of p-solids to manipulate. Thanks again for the lesson!

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