offset srf both sides

Replies to This Discussion

Permalink Reply by djordje on October 25, 2012 at 7:07am

I was not able to open your .3dm file, it seems your are using newer version of Rhino than my 4 SR8.

Nevertheless you can not do a Surface offset on a closed polysurface. Because "Offset" component is expecting a single or multiply surface inputs.
You can explode your polysurface first by using the Explode Brep component, and then input the exploded surfaces into "Offset" component. But that will result in just offsetting the surfaces from original ones, without scaling it too:

Which is not what you want.

I think what you are looking for will be available if you have at least one hole in your model. But you do not have a hole.

So why do you need that thickness? It's a closed polysurface so you do not see what's inside.

Permalink Reply by Scuy on October 25, 2012 at 9:17am

thanks and sorry, i attached rs4 file.

Oh,"Offset" component is expecting a single or multiply surface inputs!It's good to know.

I need thickness to consider material like wood.I always use "Offset" to make thickness.But this model could not succeed. Do you know another way to do that ?

Attachments:

• thickness_rs4.3dm, 89 KB

Permalink Reply by djordje on October 25, 2012 at 10:41am

Hm, this is the first time I see grasshopper starts acting crazy after a .3dm file is opened. Like your file is infected with virus or something.

Never mind, check the attached files.
Is that what you want?

Attachments:

• offset_srf.3dm, 67 KB
• offset_srf.gh, 4 KB