### Author Topic: this way it's simpler  (Read 1958 times)

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#### Zahex

• Guest
##### this way it's simpler
« on: May 09, 2005, 03:15:36 PM »
Hello:
i admit that maybe my previous post was kinda complicated to understand..hopefully this is simpler.ahere it goes:

imagine this
i have a polygon,for example a 4sided polygon (insertion point:0,0,0) ,then i would like to create a new polygon only now the insertion point is different because i want a different height,insertion point 0,0,10 (10 is the solids height) finally with the 3d face command create the faces that define a solid figure(sides and bases).

simplifying:

1-draw a polygon with the polygon command
2-give it the insertion point
3-draw another polygon with the same number of sides of the first and the z coordinate variable.
4-create 3d faces to transforme it into a solid

#### Mark

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• Seagull
• Posts: 28708
##### this way it's simpler
« Reply #1 on: May 09, 2005, 03:28:51 PM »
As I see it #4 is the hard one. But I'm no 3D expert either.

If you're going to the same polygon (#3) why not just copy the first using the same X,Y and change the Z?
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#### Mark

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• Posts: 28708
##### this way it's simpler
« Reply #2 on: May 09, 2005, 03:40:47 PM »
Just a shot in the dark but, could the extrude command do the job?
TheSwamp.org  (serving the CAD community since 2003)

#### daron

• Guest
##### this way it's simpler
« Reply #3 on: May 09, 2005, 03:46:09 PM »
I know Hendie and Stig did some studies on this. I'm just waiting for them to point to it.

#### daron

• Guest
##### this way it's simpler
« Reply #4 on: May 09, 2005, 03:48:40 PM »
Then again, maybe I can't be >that< patient. Is that link what you're looking towards?

#### Zahex

• Guest
##### this way it's simpler
« Reply #5 on: May 09, 2005, 04:26:11 PM »
is it possible to extrude from one polygon to another even if these polygons don't have the same radius?
any other clue?can either of you maybe teach me how to do these kind of solids?
Thanks

• Guest
##### this way it's simpler
« Reply #6 on: May 09, 2005, 05:19:35 PM »

EXTRUDE will allow you to extrude an existing polygon, a fixed height and taper angle.

if the two polygons are not congruent, BOX will build a uniform 3d box, the use the SLICE (3 point) command to slice it to the dimensions of the upper polygon, 2 points of the lower corners and one of the upper.