View Full Version : created solid spheres

23rd Jan 2008, 05:11 pm
I just learnt that a sphere is not a solid. How can I convert it into one (or create one from scratch)? I need it to create a rounded hole (using the subtract command).

23rd Jan 2008, 05:19 pm
How did you create it? If you use Draw>Modeling>Sphere it should be a 3D Solid.

Mr T
23rd Jan 2008, 07:15 pm
Or REVOLVE a closed profile half circle.

Select the one you have made hit Ctrl+1 to see it's poperties.


23rd Jan 2008, 07:19 pm
Actually, you're right. I made it into an ellipsoid using an autolisp program called scaleaxis (scale along a chosen axis only), and appearantly it doesn't preserve the solidity of the object. I just thought it was the sphere that wasn't a solid to begin with.

Okay, in that case, I need to know how to create an ellipsoid. Would I just create an ellipse and revolve it around its major axis?

23rd Jan 2008, 08:11 pm
Draw a solid sphere and convert it to block. Change the scale factor along the desired axis-it should be an ellipsoid.

23rd Jan 2008, 10:25 pm
revolve half an ellipse...