Convert Surface To Solid in AutoCAD 2002, Is It Possible?

[spinecad]

Is it possible to convert surface into solid in AutoCAD 2002?

 

For example, can I convert these five surfaces into a solid pyramid?

 

If yes, what is the step to do it?

[ReMark]

No surface to solid capability in 2002.

Edited March 4, 2013 by ReMark

[JD Mather]

You could extrude that base directly using path (3 times) and solidedit intersection to finish.

[spinecad]

You could extrude that base directly using path (3 times) and solidedit intersection to finish.

 

Yes I know.

 

But that not an answer.

[ReMark]

If the end result is a pyramid shaped 3D solid what does it matter?

Edited March 4, 2013 by ReMark

[JD Mather]

Yes I know.

 

But that not an answer.

 

How is it not an answer?

OK, here is a more precise answer to your precise question.

You will need a later version of AutoCAD to convert surfaces to solids.

[f700es]

Wasn't there a Pyramid command in r2002?

[ReMark]

If you are speaking about Primitives I know that AutoCAD 2000 came with six: box, sphere, cylinder, cone, wedge and torus. Not sure if pyramid was added in the jump to 2002.

 

Just checked and Bob McFarlane's book Modelling with AutoCAD 2002 mentions the same six primitives.

[f700es]

Yeah, I am not sure either as I don't have a copy installed to check. It might not have been.

[ReMark]

I updated my previous response.

[JD Mather]

Wasn't there a Pyramid command in r2002?

 

If there had been, I would not have had to figure out the trick I posted above.

Of course now I would use the Loft to point.

 

One could use the Extrude with Taper, but this only works with special cases and requires calculations (which I try to avoid when I can solve with geometry).

As I recall, the 3 extrude with path and intersect trick works for general cases, even where the apex is offset. (but then my recall is getting fuzzy)

[f700es]

I couldn't remember when it was introduced (let's use fuzzy recall as well).

[ReMark]

If the OP has Mech 2012 why go through the bother of trying to use 2002?

[f700es]

Torture? Maybe trying to help someone else out with an older copy?

[ReMark]

If he wants to torture himself I can show him how to do it using a primitive wedge solid and the SLICE command. It will take about six steps. The only surfaces involved would be used to slice an object created from the union of two wedges.

[JD Mather]

If he wants to torture himself....

 

I think I saw an earlier thread where he was comparing SolidWorks to AutoCAD (apples to oranges) when a more appropriate comparison would have been Autodesk Inventor.

More information is needed on why the requirement to use surfaces.

[SLW210]

I believe his main purpose is to sell tutorials.

 

If yes, what is the step to do it?

 

So, the desired answer to the original post is a step-by-step tutorial on converting the surfaces into a solid.

[f700es]

Show him how so he can "try" to profit of it...........

 

 

 

I really hope that is not the case.

[scj]

For converting a bunch of 3DFACES into 3DSOLIDS the F2S.lsp from Bill Gilliss is very helpfull - you can google for it. It works similar to the M2S.lsp

I wrote a program for making Tetrahedrons by slicing (see attached TETRA.lsp)

Regards

Jochen

tetra.lsp

[ReMark]

The OP could always "upgrade" to AutoCAD 2007 and use the THICKEN command to convert a surface to a solid.