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ionic capital modeling (#2769)
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Joined: 4/10/2007(UTC)
Ok, I drew up the spirals for the Volutes (spiral areas) in CAD program, but now I need to model the spiral areas of the capital (similar to the link).
What is the most efficient method to do this in ViaCAD/Shark? It needs to have the flat high areas, and the concave low areas.
http://upload.wikimedia.org/wik.../9f/Colonne-p1040009.jpg Norbert
Rank: Senior Member
Joined: 4/10/2007(UTC)
ok getting to the Flute....but still not sure how I'm going to do that part...
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nbtsf
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Joined: 6/28/2008(UTC)
A Two Rail Sweep Surface, maybe?
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Originally Posted by: blowlamp A Two Rail Sweep Surface, maybe?
If you where to attempt to sweep around the spiral, you would need to break it into sections. The 2 rail sweep is not good in VC/Shark. It gets lost very easily.
I will have a play. Will try some networks.
Rank: Senior Member
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Maybe I could extrude the spiral part up, and the I will have a non concave trough, which I could then bevel to approximate the concave area???
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Originally Posted by: norbertsf Maybe I could extrude the spiral part up, and the I will have a non concave trough, which I could then bevel to approximate the concave area???
You could try that, maybe with a "variable blend/hold line". The line being along the bottom of the trough central between the 2 spirals?
Rank: Senior Member
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Extruded the spiral up, and booleaned the flat area with the extruded area.
Then used the Blend tool in Radial mode.
Seems to partly work, except it won't let me blend certain areas. Gives me errors.
By
nbtsf
Rank: Senior Member
Joined: 6/28/2008(UTC)
norbertsf.
While the accompanying picture and file are hardly the definitive examples of how to do this, they might be of some help, I hope. I used 2 Two Rail Surface Sweeps and a bit of line cutting to get a (very rough) approximation of what you're after.
Martin.
File Attachment(s):
2railsurfacesweep.sfx
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Capture.jpg
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It does look like using 2 rail sweeps is the way to go. I did make a quick attempt which was to create the spiral with the flat, then used Ellipse on the sections for the recess.
Steve.M attached the following image(s):
spiral.png
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Rank: Senior Member
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Guys thanks for the info/files. I will look into using a 2 rail sweep solution.
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Originally Posted by: norbertsf Next...I have to make a 3d Flame.....
What kind of flame?
Rank: Senior Member
Joined: 4/10/2007(UTC)
Steve, I'll post a separate thread for that. An organic Flame.
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