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3D Scanner & 2D converted to 3D within AutoCAD...HELP!!

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king

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Dec 4, 1996, 3:00:00 AM12/4/96
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Wouldn't it be nice to place an object into a 3D kinda scanner and have AutoCAD
scan the object and import that 3D object into AutoCAD!! Is there such a device?

Also, I thought AutoCAD r13c4 could take a 2D drawing of an object drawn out
with all sides and take that 2D drawing and convert it to a 3D object. Can
AutoCAD do such a thing, or do you have to get a add on program?

I have several drawings that are drawn up in 2D with all sides. I need to create
3D drawing out of them.

Any suggestions?

Tim


hardy harr

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Dec 4, 1996, 3:00:00 AM12/4/96
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The answer to your question is YES, there is such a thing as a 3D
laser scanner that will scan objects in 3D space. Unfortunatly this is
an expensive process that not many people have access too.

A more practical method is to us a 3D digitizing wand. this is a unit
that lets you digitize 3D points on any object. these units run from
$2,000 and up.


As for autocad making 3D out of 2D, not bloody likely.
there is a program however called Make-It 3D that is supposed to do
that very thing. I have not personaly seen this work nor do i know
anyone who has used it.

What acad will do, is extrude a 2D outline that will create a 3D
solid. This is great for none complicated objects. This is also how i
begin almost all of my models, by finding the best outline to extrude
and then adding or subtracting from it.


hope this helps

Tony
12/4/96

Jim Fitzgerald

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Dec 4, 1996, 3:00:00 AM12/4/96
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t...@iag.net (king) wrote:

>Wouldn't it be nice to place an object into a 3D kinda scanner and have AutoCAD
>scan the object and import that 3D object into AutoCAD!! Is there such a device?

Yeah, they're available (kinda pricy) there are also 3D digitizers
that allow you to pick points on a 3D object and have it created in
CAD.

>Also, I thought AutoCAD r13c4 could take a 2D drawing of an object drawn out
>with all sides and take that 2D drawing and convert it to a 3D object. Can
>AutoCAD do such a thing, or do you have to get a add on program?
>

It depends on the complextiy of the object but for fairly simple stuff
you can rotate and align the 2D views so they are in place in 3D
space. Then extrude each view to its proper depth, then intersect the
resulting solids. Like I said it doesn't work for everthing, just
fairly simple profiles but it can give you a good start.

If this doesn't make sense or you'd like a more detailed explanation
let me know and I'd be happy to provide a drawing or picture
describing the process.

-Jim Fitzgerald

Reini Urban

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Dec 5, 1996, 3:00:00 AM12/5/96
to

t...@iag.net (king) wrote:
>Wouldn't it be nice to place an object into a 3D kinda scanner and have AutoCAD
>scan the object and import that 3D object into AutoCAD!! Is there such a device?
I got some Cyberware 3d-scanned objects but they are impossible to load
into Autocad because its huge solution. Too much points (~200 000) per
object. It needs about 30 minutes just to load such a drawing, not speak
of any operation.
You need an external program to smooth the mesh before you can think of
importing it into any CAD program (3ds had the 64000 vtx limit then).
With 3DS there's such a tool called OPTIMIZE or REDUCE (I forgot) which
reduces the vertex number. I brought my head down to 3000 vtx's andf
this was okay.
For the first conversion (to get it into 3ds) I wrote such a dos exe for
the cyberware format. I'll send it on request.

BTW: Cyberware is the manufacturer of such 3D Scanners. (Monterey, CA)
Incredibly good stuff and very nice guys there.

But there're also 3D "printers" out now!

>Also, I thought AutoCAD r13c4 could take a 2D drawing of an object drawn out
>with all sides and take that 2D drawing and convert it to a 3D object. Can
>AutoCAD do such a thing, or do you have to get a add on program?

>I have several drawings that are drawn up in 2D with all sides. I need to create
>3D drawing out of them.

There some programs around but its not easy. I forgot their names.

---
Reini Urban, TU Graz, Architecture & X-RAY
Attention! From: header is garbled on purpose!
<rur...@sbox.tu-graz.ac.at> http://xarch.tu-graz.ac.at/autocad/

Johnny

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Dec 9, 1996, 3:00:00 AM12/9/96
to

Hi Tim,
I don't know of any ACAD command to convert 2D to 3D. How about rotating
the views in 3D with the UCS and all that, and using those views as
construction objects? It's a hell of a workaround, but I guess it depends
on how bad you need the 3D objects.
John
(johnn...@centuryinter.net)

king <t...@iag.net> wrote in article <584goi$f...@news.iag.net>...


> Wouldn't it be nice to place an object into a 3D kinda scanner and have
AutoCAD
> scan the object and import that 3D object into AutoCAD!! Is there such a
device?
>

> Also, I thought AutoCAD r13c4 could take a 2D drawing of an object drawn
out
> with all sides and take that 2D drawing and convert it to a 3D object.
Can
> AutoCAD do such a thing, or do you have to get a add on program?
>
> I have several drawings that are drawn up in 2D with all sides. I need
to create
> 3D drawing out of them.
>

> Any suggestions?
>
> Tim
>
>

Reaper

unread,
Dec 13, 1996, 3:00:00 AM12/13/96
to
> > I've heard of add-ons for Microstation that allow you to use two
images, eg. photographs at different angles, and will then use
the information to create a 3D-model - I've been hanging out for
something to come out for AutoCAD to do the same thing, but as
far as I know nothing exists...

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