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Topic Closednurbs (api)

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kmorgan View Drop Down
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Direct Link To This Post Posted: 02.Jun.2014 at 19:47
Basically, I think? I've generated shapes before and then I've sliced them using the "Slice" Command.
Then I've used "interference checking" to generate new shapes. Or make new
surfaces that are perfect!? So, how can I generate an ellipse in three directions? Mesh or otherwise, so that I may "SLICE" it every 12" with an 1 1/2" solid? Did I ask that right? BTW, Thank you for your responses!
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John Connor View Drop Down
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Direct Link To This Post Posted: 02.Jun.2014 at 19:57
Create one quarter of the dome using the Loft command.  That will create a surface.  Use the Thicken command next to get the overall thickness.  Then mirror and union the separate pieces to create the entire dome.  Extrude a circle through the dome and Subtract for the hole.  Slice it up as you see fit.


Edited by John Connor - 02.Jun.2014 at 19:59
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

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kmorgan View Drop Down
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Direct Link To This Post Posted: 02.Jun.2014 at 20:27
Thank you, very much for all your help. But I'm just not getting it...My lack of experience and my trial-and-error technique to learning has only allowed me so much. I'll keep trying thou. The rat gets the cheese eventually, right?! Have a good one!
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John Connor View Drop Down
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Direct Link To This Post Posted: 02.Jun.2014 at 23:53
What aren't you getting?

If you could do the 3D model you uploaded to this site then you can do this.

You're going to be working with just one quarter of the ellipse in plan, front and right views.  You're going to loft the two vertical sections of ellipses and specify the horizontal section as the "guide".  That's what will create the surface.  The surface needs to be given a depth.  That's what the Thicken command is for.  Once you have one quarter of the dome completed you mirror it to create half a dome then mirror the half to create the whole dome.  Join all four sections of the dome together using the Union command.  I'm sure you can handle it from there right?
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

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John Connor View Drop Down
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Direct Link To This Post Posted: 03.Jun.2014 at 11:46
Another method to create the surface would be to use EDGESURF.  You need four edges though so take the piece of an ellipse that is the longest of the three and break it.  Once you've run EDGESURF you can then run the Mesh-to-Solid lisp found here at the CADforum to generate a solid.


Edited by John Connor - 03.Jun.2014 at 11:48
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

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kmorgan View Drop Down
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Direct Link To This Post Posted: 03.Jun.2014 at 15:54
Please see 'New Blocks' For a Look @ ellipse2
The 3dconstruct is pretty cool. Thanks for all your help & tips!
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John Connor View Drop Down
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Direct Link To This Post Posted: 03.Jun.2014 at 16:13
Sure thing.  Thanks for sharing your design too.
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

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