chstech Posted June 26, 2010 Share Posted June 26, 2010 i need help! i have an extruded object that has multiple angles on it. i am trying to 'cut out' some holes thru it on one axis. Not sure the best way of doing it, and have done this in the past, but have tried many different things with no luck. any suggestions? Thanks Quote Link to comment
Pat Stanford Posted June 26, 2010 Share Posted June 26, 2010 You need to learn to use working planes and to use the working plane palette to look at the working plane. The basics are to use the Set Working Planes tool in the 3D Tool Set to make a working plane on the face you want to punch the holes in. Then click the "eye ball" button on the Working Planes Palette so that the working plane matches the screen plane. Any 2D object you now draw will be on the working plane (which is the face of your object). Now you can extrude the objects and then do a Subtract solids. You might need to move to a "side" view to get you extrusions ("punches") long enough and in the right place to make the holes you want. Quote Link to comment
chstech Posted June 27, 2010 Author Share Posted June 27, 2010 ok, i did all that, but it added some weird extra lines in the original item... i will try to post an image Quote Link to comment
Benson Shaw Posted June 27, 2010 Share Posted June 27, 2010 Those look like some arcs with radius lines to the centers. These might be artifacts from creating the extrude. Perhaps they are from arcs overlaying the closed poly. You may be able to edit the extrude and delete them, leaving the closed poly intact. Or, if your extrude is not a continuous polyline, but rather a bunch of unconnected lines, arcs, etc, you could compose the elements into a single poly - those extra facets will go away (unless they are separate, overlaying objects which need to be deleted). Related: An arc with fill extrudes with visible facets created by the radius lines. Switch the fill to None, and the connections to the center disappear in the extrude, but the rendered surface has no fill. An arc created in one of the arc modes of the Polyline Tool extrudes as a curved surface with no radius facets - fill or no fill. -B Quote Link to comment
Jonathan Pickup Posted August 2, 2010 Share Posted August 2, 2010 The 3D Modeling manual has a great explanation of working planes and how to use them, along with lots of exercises to build your 3D skill. http://www.nemetschek.net/training/guides.php Quote Link to comment
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