Help needed: 3D Design withing Acad R13 for Windows

Gerhard Botha

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Jun 7, 1996, 3:00:00 AM6/7/96

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Hi. Can someone please tell me if it is possible to make 3D objects within autocad by drawing the top, front and cross section views and then
have autocad loft this into a 3D object??? I's kinda like 3D Studio's Fit-Shaping in the lofter.

Dennis Shinn

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Jun 8, 1996, 3:00:00 AM6/8/96

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vir...@lia.co.za (Gerhard Botha) wrote:

>Hi. Can someone please tell me if it is possible to make 3D objects within autocad by drawing the top, front and cross section views and then
>have autocad loft this into a 3D object???

There's nothing native within AutoCAD, unfortunately, that will provide this
kind of functionality. There is one third party program called "MakeIt 3D"
that makes an attempt at it, though. I've only seen it demonstrated and I've
never used it myself.

If this sounds like something you could use let me know and I'll look up some
contact information for you.

Dennis Shinn
Seattle AutoCAD User Group
SAUG-BBS [206] 644-7115 PCGNet 9:517/215
email: jee...@halcyon.com

Mike C. Fletcher

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Jun 8, 1996, 3:00:00 AM6/8/96

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Hello,
Off the top of my head, you could try this;

draw the three views using only closed polylines
extrude each view to more than the depth of your object from that view
do a boolean union on the three resulting objects.

Of course, this only works for simple objects, for more complex
objects (such as ones that vary along their length), you'd likely need
to do multiple slices and then union together the pieces.

Good luck!
Mike Fletcher
mcfl...@itrc.uwaterloo.ca

vir...@lia.co.za (Gerhard Botha) wrote:

>Hi. Can someone please tell me if it is possible to make 3D objects within autocad by drawing the top, front and cross section views and then

Jim Fitzgerald

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Jun 10, 1996, 3:00:00 AM6/10/96

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vir...@lia.co.za (Gerhard Botha) wrote:

>Hi. Can someone please tell me if it is possible to make 3D objects within autocad by drawing the top, front and cross section views and then
>have autocad loft this into a 3D object??? I's kinda like 3D Studio's Fit-Shaping in the lofter.

Yeah, you can create each cross-section in the appropriate UCS and
line them up with one another. Then use the extrude command to take
them to an appropriate height, and then use the intersect command to
turn them into a completed 3D object.

One of the neatest tricks I've seen in constructing a 3D model.

-Jim Fitzgerald

G Rajesh

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Jun 10, 1996, 3:00:00 AM6/10/96

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vir...@lia.co.za (Gerhard Botha) wrote:

>Hi. Can someone please tell me if it is possible to make 3D objects within autocad by drawing the top, front and cross section views and then
>have autocad loft this into a 3D object??? I's kinda like 3D Studio's Fit-Shaping in the lofter.
>

Gerhard ,

The answer is simply NO. However the reverse is possible using AutoCAD R13c4.
or R13c4 + Designer.Contact your local Autodesk dealer for more info.

G.Rajesh
//Autodesk Product Support on the Internet//