2Tal Posted October 30, 2013 Posted October 30, 2013 thought i would keep it simple above and keep it numerical I am working with autoCAD 2007 and want to convert a 2D drawing to 3D. this is my first time even entering the 3D workspace so if I could get kiddy step advice it would be great Quote
ReMark Posted October 30, 2013 Posted October 30, 2013 (edited) Well for starters you have the following commands.... Extrude, PressPull, Sweep, Revolve and Loft to create 3D objects from your 2D geometry. All of these commands can be found on your Modeling toolbar as well as the Dashboard. On the same toolbar you'll find your "Primitives" like Box, Sphere, Wedge, Cone, Cylinder, Torus and Pyramid as well as your Polysolid, Helix and Planar Surface commands. Rounding things out will be the Union, Subtract and Intersect commands along with 3DMove, 3DRotate and 3DAlign. A fairly robust toolbar comprised of the commands you'll need most in construction your 3D model. Next up: the Solid Editing commands. One quick question. Are you at all familiar with orienting the UCS? It can be done manually or via the Dynamic UCS. Last thing. Make sure to switch over to a 3D Modeling workspace and set it up with the toolbars, etc. you will most want to use then save this workspace under a new name. Edited October 30, 2013 by ReMark Quote
marmo Posted October 30, 2013 Posted October 30, 2013 Hi, before starting erases all objects that are not necessary Quote
ReMark Posted October 30, 2013 Posted October 30, 2013 Actually before you do anything go through some of the 3D tutorials here at CADTutor. http://www.cadtutor.net/tutorials/autocad/index.php?category_id=25 Find additional tutorials, for AutoCAD 2007, here... http://www.we-r-here.com/cad_07/tutorials/index.htm There is a section called "Introduction to 3D". Quote
ReMark Posted October 30, 2013 Posted October 30, 2013 (edited) Should you prefer toolbars over the Dashboard these are some I would recommend when doing 3D modeling. I found that the Dashboard just got in my way so I ended up closing it. Oops, forgot one. It is the View toolbar. Edited October 30, 2013 by ReMark Quote
ReMark Posted October 30, 2013 Posted October 30, 2013 AutoCAD can create both Surfaces and Solids. In the example above a 2x2 square (magenta) comprised of four lines has all four sides extruded (Extrude command). The result (middle) is four separate surfaces. The cube on the right, derived from the same four lines, was created using the PressPull command. The result is a solid. Note: Visual style = 2Dwireframe. Quote
ReMark Posted October 30, 2013 Posted October 30, 2013 Same geometry only this time the visual style is Conceptual. Quote
JD Mather Posted October 30, 2013 Posted October 30, 2013 http://home.pct.edu/~jmather/content/CAD238/AutoCAD_2007_Tutorials.htm Quote
2Tal Posted October 30, 2013 Author Posted October 30, 2013 guys thanks for the replies - much appreciated. ReMark - BIG thanks for taking the time to post images/samples, those toolbars look familiar, I did set them up last night. Not familiar with the UCS to answer your question. JD Mather - i'll check this out tonight - thanks Thanks also for the links - i'll surf on those tonight Quote
ReMark Posted October 30, 2013 Posted October 30, 2013 UCS - User Coordinate System. Being able to work in different planes is an important part of 3D modeling. Quote
2Tal Posted October 30, 2013 Author Posted October 30, 2013 cool thanks ReMark - i think there is a big learning curve ahead Quote
ReMark Posted October 30, 2013 Posted October 30, 2013 Some 3D objects created in AutoCAD 2007. The sphere on the far left is a primitive. Next to it is an arc that was swept along the path of a second arc (Sweep command). To the right of that is a portion of a drinking cup created with the Revolve command. On the far right is an object created with various diameter circles using the Loft command. Quote
2Tal Posted October 30, 2013 Author Posted October 30, 2013 ok thanks for all the help so far. i have watched a number of tutorials and they are helpful. after tricking around with my basic 2D drawing in the 3D work space and using the extrude command I can get a 3D image, but somehow it doesnt feel just right. Quote
2Tal Posted October 30, 2013 Author Posted October 30, 2013 ... as in it doesnt have a top or bottom, just walls Quote
JD Mather Posted October 30, 2013 Posted October 30, 2013 Looks like you have extruded surfaces rather than solids. Did you PE J the boundaries? Try using the command Presspull rather than extrude. Quote
2Tal Posted October 31, 2013 Author Posted October 31, 2013 ok erm presspull has been pulled into service - thanks . . . I just cannot configure the 2 outer most holes. I'll keep tricking - tomorrow Thanks JD Mather:) Quote
ReMark Posted October 31, 2013 Posted October 31, 2013 Are those two outermost holes counter bored? I noticed that previously you ran into the same problem most newbies to 3D do when you extruded lines and arcs only to end up with surfaces. That's why I mentioned the PressPull command. But JDM got you onto the right path so all's well that ends well. Quote
ReMark Posted October 31, 2013 Posted October 31, 2013 Visual style: 2Dwireframe Let's assume you want to counterbore the hole. To do so your geometry must be correct. See object 2 above? The smaller diameter hole passes entirely through the base while the larger diameter hole does not. My suggestion would be that you union the two extruded holes (object 3) then subtract both from the unioned base (object 4). Object 5 is a cutaway proving we have accomplished our task. Quote
ReMark Posted October 31, 2013 Posted October 31, 2013 One method for creating a countersunk hole. Watch out. JDM will try to talk you into buying a modern MCAD program like Inventor where all this will be much easier. Hold on to your wallet! Quote
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