Feature Flip normal?

[pnos]

Hi, I would like to ask what it is in Creo function FLIP NORMAL?Thanks

This thread is inactive and closed by the PTC Community Management Team. If you would like to provide a reply and re-open this thread, please notify the moderator and reference the thread. You may also use "Start a topic" button to ask a new question. Please be sure to include what version of the PTC product you are using so another community member knowledgeable about your version may be able to assist.

[Patriot_1776]

Back in the old days of surfaces with normals only on one side, if it was facing away from the viewer, the surface was invisible. I think now that it's more used for determining toolpaths, etc.

[Patriot_1776]

To expand on that, in the old days, surfaces usually were single-sided (only one normal), so you had the issues with holes if the normals were wrong. Now, it seems almost all surfaces are double-sided, with exceptions I've seen being STEP or other imported files that have holes.