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Originally Posted by SLW210
I would just make it a block and locate them manually, just try to make the insertion point of the block something logical for locating.

Is there a particular relationship between the solids?

Just post a drawing that shows what is needed, might help with better solutions.
I'm sorry I can't do it ...

2. Can't do which one or all three?

3. Originally Posted by SLW210
Can't do which one or all three?
I can't post the drawing

4. Originally Posted by David Bethel
I think that I can compare (2) 3D Solids and tell if they are identical geometry, layers, color etc. I cannot tell you where they are located .

Draw (2) 3D SPHEREs with the same diameter, only different locations.

Code:
```(defun c:c3d (/ ss e1 e2 d1 d2 c1 c2 rl)

(while (not e1)
(princ "\nSelect 2 Entities:   ")
(and (setq ss (ssget))
(= (sslength ss) 2)
(setq e1 (ssname ss 0)
e2 (ssname ss 1))
(not (eq e1 e2))
(setq d1 (entget e1)
d2 (entget e2))))

(setq rl (list -1 5 330))

(foreach g d1
(if (not (member (car g) rl))
(setq c1 (cons g c1)))
(if (not (member (car g) rl))
(setq c2 (cons g c2))))

(if (equal c1 c2)

(prin1))```
Without the location information, I don't know if it could be done. -David

And I do mean identical. Not rotated, not different elevations etc
something wrong with this code:

5. Originally Posted by JamesBorubar
I can't post the drawing
You should be able to post drawings. I didn't ask for a specific drawing, I ask for a drawing that shows what is needed.

6. Wait a second. Why would you draw something in 3D in autocad when you have Inventor? Inventor is a great 3D program. I would use that.

7. Originally Posted by bjenk8100
Wait a second. Why would you draw something in 3D in autocad when you have Inventor? Inventor is a great 3D program. I would use that.
I didn't make 3d model in AutoCad. I've got it from my client, my task is to make fabrication drawings.

8. Is there anything else we should know that you haven't already told us?

9. Originally Posted by ReMark
Is there anything else we should know that you haven't already told us?
Originally Posted by SLW210
I would just make it a block and locate them manually, just try to make the insertion point of the block something logical for locating.

Is there a particular relationship between the solids?

Just post a drawing that shows what is needed, might help with better solutions.
Originally Posted by SEANT
Upload a sample drawing. Create the sample, if needed, to avoid proprietary/intellectual property concerns.

Why not just use Inventor, what's the need for AutoCAD?

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sample-steel-4.dwg
Originally Posted by SLW210

Why not just use Inventor, what's the need for AutoCAD?
I think I answered all questions I was asked, but the last from ReMark.
Ok, once again: I received 3d model in AutoCad dwg file from my client. I made some modifications (in AutoCad) and now I want to import into Inventor.
But if there are no blocks for the same solids I will get in Inventor the same parts as different. I found the tools, which can make blocks for repeatings solids, but only for simple, not modified.