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autocad
how can we make 3d objects in autocad
Replies to This Discussion
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Permalink Reply by Hosein Atharifar on -
It is pain. You would better use Autodesk Inventor, SolidWorks, or other 3D CAD software.
However, if you are using AutoCAD 2009, up on status bar, there is an icon called "workspace switching". There, you can change your AutoCAD 2D drafting into 3D modeling environment. After that, in the first ribbon bar, you are gonna get almost all the icons/commands required for 3D modeling in AutoCAD.
One important thing in 3D modeling using AutoCAD is to make sure that your 2D sketch is a closed loop. After that you can turn your closed loop into a section using "section" command. Then, using any basic 3D modeling commands (for instance: Extrusion or Revolve), you can turn your 2D sketched into 3D models.
If you don't turn your closed loop, 2D sketches into a section, you are gonna end up creating surfaces instead of solid bodies.
Hope these help.
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Permalink Reply by Ismet Karga on
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This is question for the book to be write... If you already have AutoCAD installed, just follow instructions in Help. It is quite enough to start and learn how to work with 3D objects. What you have to know for the first time working wtih 3D is about UCS (User Coordinate System), about objects that you can convert into 3D objects, about main AutoCAD commands like extrude, revolve, loft...once you start, it will be easier!
Of course, all above is possible if you are familiar with AutoCAD 2D...if not - start to be.
Wish you the best!
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Permalink Reply by caddit on
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Starting with AutoCAD 13, AutoCAD supported CSG 3D modeling commands from ACIS libraries. This included boolean operations (union, subtract, common) and surface manipulation offered by the ACIS local ops husk.
There is no parametric history kept for the 3D model construction, and changes are applied using tool bodies and direct surface modifications.
Prior to R13, AutoCAD users required AME(Advanced Modeling Extension) or the AutoCAD 3D surface/wireframe commands.
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Permalink Reply by Mirza Huseinspahic on
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Do not lose their time on Autodesk!
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Permalink Reply by Bob Chesley on -
If my memory is correct it seems to me that Autocad 14.5 was still a 2 1/2 D glorified etch-a-sketch. Many of my clients came to me in those days because they could not open and read a simple IGES file of 3-D wire frame. Solid modeling was not even on Autocads radar at the time. Some local reps were even telling their customers that 3-D was not an efficient way to design, to cover their lack of programming that advanced. Just a heads up on the facts from an old dude who remembers.
caddit said:Starting with AutoCAD 13, AutoCAD supported CSG 3D modeling commands from ACIS libraries. This included boolean operations (union, subtract, common) and surface manipulation offered by the ACIS local ops husk.
There is no parametric history kept for the 3D model construction, and changes are applied using tool bodies and direct surface modifications.
Prior to R13, AutoCAD users required AME(Advanced Modeling Extension) or the AutoCAD 3D surface/wireframe commands.
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Bob Chesley said:If my memory is correct it seems to me that Autocad 14.5 was still a 2 1/2 D glorified etch-a-sketch. Many of my clients came to me in those days because they could not open and read a simple IGES file of 3-D wire frame. Solid modeling was not even on Autocads radar at the time. Some local reps were even telling their customers that 3-D was not an efficient way to design, to cover their lack of programming that advanced. Just a heads up on the facts from an old dude who remembers.
caddit said:Starting with AutoCAD 13, AutoCAD supported CSG 3D modeling commands from ACIS libraries. This included boolean operations (union, subtract, common) and surface manipulation offered by the ACIS local ops husk.
There is no parametric history kept for the 3D model construction, and changes are applied using tool bodies and direct surface modifications.
Prior to R13, AutoCAD users required AME(Advanced Modeling Extension) or the AutoCAD 3D surface/wireframe commands.
Although basic ACIS boolean modeling support started with R13, there was no 3D solid exchage commands included with AutoCAD beyond acisin and acisout. IGES to ACIS was certianly not supported on anything less than MDT.
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Permalink Reply by Robert B. Price, C.Mfg.Engr. on
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I have been doing work exclusively in 3D since release 14: first using the CSG Editor and now using its successor, AutoSolids. AutoSolids and its companion, ASMechanical, uses all the native 3D commands that have been in AutoCAD since release 14 but in a very user friendly way. Most importantly it keeps a full history of everything that has been done and allows for full editability of the solids. Unlike AutoCAD, which can loose the history depending on how you save the file. I have had many personal contacs with the folks at Autodesk who are working to improve the 3D capabilties to get them to add some of the features of AutoSolids to AutoCAD, but they are limited in what they can do because Autodesk wants its customers to migrate to Inventor. But 3D work can and is being done by thousands of folks. You can try a demo of AutoSolids at www.autosolids.com.
Bob Price
A*G*M,,
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Permalink Reply by Elvis Sverko on -
There needs to be a compelling reason to move to 3D. Today, there are many compelling reasons. It's cost effective. It's easy to use. It shortens design time. Everyone else is using it.
If you already have AutoCAD, you already have 3D capabilities (just change the Workspace to 3D). Autodesk Inventor is an extremely useful 3D solid modeling package, including it's interoperability with AutoCAD, among other features.
For additional information on these products, visit - http://www.rand.com/imaginit/1/technology/technology.htm
I hope you make the best decision for you.
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Permalink Reply by Robert Arthurs on
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From what all the responses to your post look like, it seems that you may be in the market to update your CAD software. If you decide that it is that time to do so, I recommend that you take a look at the McGraw Hill Sweets Network, they can lead you in the right direction in terms of weighing all of your options if you choose to pick a new software.
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Best of luck!
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