Model Creation Help

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Model Creation Help

Anonymous
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Model Creation Help
There is a type of shape I have to draw often. I consider it very simple but it always becomes very completed in Inventor. My current project is a Fluted Tucsan Column which I will mill on my CNC Router. The bottom third of the column is straight then taper down. The taper is not straight but is a curve defined centuries ago. I also do odd shaped domes which are similar in that there XY cross section only changes in scale. I will try and give a simple example of the type of shape I am trying to create.
Draw on 2x2 square centered on 0,0,0 on the XY plan
Draw a 1x1 square centered on 0,0,2 parallel
Draw a 2 radius arc on the YZ plan from 0,1,0 to 0,.5,2
Now what I want is a loft along the Z axis between the (2) squares with the radius controlling the size of the intermediate XY plane cross sections. IE if the squares where circles the shape I want could be created by revolving the 2 radius around Z.
A while back I did a dome for Las Vegas. I had to draw over 100 ellipses and loft thru them to get the correct shape. It should have been simple.
Any suggestion would be appreciated

Alfred C Jolley
DesignForm, Inc.
Portland Oregon
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Anonymous
Not applicable
aljolley54@hotmail.com ha scritto:
> Draw on 2x2 square centered on 0,0,0 on the XY plan Draw a 1x1 square
> centered on 0,0,2 parallel Draw a 2 radius arc on the YZ plan from
> 0,1,0 to 0,.5,2 Now what I want is a loft along the Z axis between
> the (2) squares with the radius controlling the size of the
> intermediate XY plane cross sections.

Is this what you need?

M.

--
AIS 11 SP4
Pentium 4 3 GHz - 2 GB RAM
NVIDIA Quadro 330 6.14.10.9136
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Anonymous
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Thank You for your effort but No it is not. I need all horiz. cross sections to be square. In a elliptical dome all cross sections are true eclipses. In the tuscan column I need to make all cross sections need to be identical to the original,base, but scaled down
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Anonymous
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aljolley54@hotmail.com ha scritto:

> Thank You for your effort but No it is not. I need all horiz. cross
> sections to be square.

Uh, you are right, they are not.
This is not perfect, but it's better then the previous one.

M.


--
AIS 11 SP4
Pentium 4 3 GHz - 2 GB RAM
NVIDIA Quadro 330 6.14.10.9136
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Anonymous
Not applicable
Thanks I think this may work I will try on my more complex shapes. I did not remember scaling the the sweep

Alfred C Jolley
DesignForm, Inc
Portland, Oregon
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