Surface thickness, puzzled what kind of surface i have here

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Permalink Reply by David Cockey on January 19, 2012 at 10:34pm

The green surface is a rectangular surface which was trimmed to shape.

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Permalink Reply by Johnny Greinerse on January 19, 2012 at 11:14pm

Thanks david

How can i see that? 

Is there a significant differance in behaviour?

Regards John

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Permalink Reply by Chris Hentz on January 23, 2012 at 4:23am

Be aware, neither surface has a thickness. As they are presented, if you offset the surfaces, the green one will offset down and the grey one will offset up. The green surface is upside down. On the green surface, the normals are pointing downward. On the gray surface, the normals are facing upward. Use Analyze (menu bar) > Direction > Flip (option in the command line) > choose the green one > Enter when done.  Now when you offset, the surfaces will go the same direction, Up.

You have also turned off the Show surface Isocurve (check box) near the bottem of the properties window for the green surface. Those are my guesses, at this point. (your file had no curves to see how you loft?) 

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Permalink Reply by Johnny Greinerse on January 23, 2012 at 6:56am

Txs Chris,

End of the week i will get a 2 days training, and i will get my answers.

I thougt the green surface had thickness because when i projected the hatch on the green surface it seemd to hover above the surface. I will have a go tonight again with all the options you mentioned.

Txs

John

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