![]() ![]() Experience and practice bring understanding. Just look for the naked edges and zoom way in on them. Post the objects you have trouble joining to the Rhino Newsgroup. Tolerances play a role in creating closed volumes And guess what? Meshes are no more solid than Rhino NURBS objects… When you slice them, you still get just boundary curves.ĭiscussion of the concept of solids (culled from newsgroup posts). Also remember, that it is not the Rhino NURBS object that is being sliced by the rapid prototyping process, but a mesh in the form of your object, via an STL file. The rapid prototyping software/machine fills these slices in for you. Some people worry that if you slice a solid in Rhino, you do not get surface planes or salami slices, but just an outer boundary curve at each slice. The term “solids” seems to confuse a lot of people and there are often discussions about it, in particular with relation to getting watertight solids for rapid prototyping. JB says: Use the ShowEdges command with the display set to “naked edges” to find the unjoined edges. A solid is its outer surfaces, once they are completely joined. Thus it is not air/watertight, not volumetric. If there is even a pin prick size hole, it will deflate. ![]() Another way to understand a solid is to see it as a balloon. Mitch says: The official terminology for a closed solid in Rhino is a closed polysurface.Ī solid has no naked edges. The Rhino object must be a closed solid before a valid STL file can be generated. There has been quite a lot of good help offered in the production of STL files. What is a solid in Rhino? How do I get a good watertight.
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