solids

[balsaman]

Ok I am fairly good at 2d drawings in Autocad. How can I convert a 2d object into a surface so I can extrude it into a 3D solid object?

I use Autocad 2000i. I also have mech. desktop but never used it.

Thanks!

Eric

[E-Stop]

Any 2D object that has closed boundries should be able to be extruded. It doesn't have to be converted to a surface.

[CNCadmin]

Or use Pedit and convert all the lines to a close polyline. Than you can extrude it. In MD, you have a little more steps to make a part, but you can draw in it like you would autocad. I have allot of exsperance with MD.

[balsaman]

Hey guys, you are correct! I just extruded some stuff! I guess I should have tried it. I just assumed it was harder than that.

Eric

[Zephrant]

It is much easier to use "boundary", then click inside the part. It will search out the edges, and draw a pline all the way around. If the part is not closed, it will fail.

Then you can just extrude the new pline.

Many of my 3d parts start with a bunch of xlines, then a single boundary command to make the outline.

Zeph

[CNCadmin]

I'll have to try that, I usually use the pedit command. Or I redraw using a polyline.

[Airxsails]

Hello all,

I work in the world of 3D all day long and I thought I knew all the tricks but the boundary command is one that I have not used in my work, I design brine water plants. Thaks guys.

Eric

OBTW this is what I do as part of my hobby of model airplanes...

[Airxsails]

Oops the picture did not go????

sorry guys I could not get the picture small enough.

Eric

[CNCadmin]

Originally posted by Airxsails Oops the picture did not go???? sorry guys I could not get the picture small enough. Eric

Try this - http://cnczone.com/showthread.php?s=&threadid=210

[Zephrant]

Boundary is great if the view port is normal to the working plane. It can do some weird things when you have lines at various Z levels too. There are still times where I give up trying to determine what it is doing, and sketch in a pline using the osnaps.


Zeph

[Airxsails]

Thank you CNCadmin,

I downloaded the viewer and have resized it to a much smaller size.

Hope this works.

On the subject of solids, I have found that connect all the lines needed to make a region and then go to propertied and set all z coordinates for the potential region to 0 and then region it then extrude it. it seems long but it never fails.

Eric

[balsaman]

Nice AirX!

I made a 3d part! Thanks guys. Still lots to learn.

Eric