CAD model quality in parametric design scenarios largely determines the level of flexibility and adaptability of a 3D model (how easy it is to alter the geometry) as well as its reusability (the ability to use existing geometry in other contexts and applications). Reuse legacy CAD data and make modifications when necessary, using SolidFace powerful direct editing tools. Enhanced Feature Set Each of SolidFace parametric design features perform multiple operations in one, reducing the number of features required, icon clutter and user training.
- Autocad 3d Parametric Modeling
- Parametric Modeling Autocad
- Autocad 3d Parametric Modeling
- Parametric Modeling In Autocad
Parametric Modeling in CATIA CAD Software for Process Optimization February 02, 2020 by Maher Elkhaldi Learn about CATIA, a CAD software program used for parametric modeling, and how it can improve automated processes. Automation is a process of embedding decision making into inanimate objects. Here, objects can be physical (hardware). Direct Lookup in a Design Table. To evaluate a configuration parameter: Select it in the Mechanical Browser and type the desired value in its Expression field.; Select a value in the drop-down list of the Value field:; If you change the value of a configuration parameter all configuration-dependent parameters' values change automatically on the corresponding design table. Parametric drawing is a technology that is used for designing with constraints, which are associations and restrictions applied to 2D geometry. There are two general types of constraints: Geometric constraints control the relationships of objects with respect to each other.
Types of CAD Modeling Techniques
Following three types of CAD modeling techniques are widely used in the cad industry to create 3D cad industry. Each of these three types of cad modeling techniques are different from each other and has their own advantages, limitations and applications.
- Parametric Cad Modeling
- Direct CAD Modeling
- Synchronous Modeling
Some engineers like the flexibility of Parametric Modeling. Whereas some engineers prefer how features are created in direct cad modeling without history. Most types of CAD software in the market either use a parametric or direct approach. But some of the latest cad software are utilizing a hybrid approach known as Synchronous CAD Modeling. Synchronous cad modeling has features of both parametric and direct cad modeling combined. Click this link to know what is CAD? It’s Advantages, limitations and applications.
Parametric CAD Modeling (History Based CAD)
Who made deltarune. Parametric CAD also known as History based cad modeling approach is leading the pack in the CAD industry. Engineers really like the flexibility of this approach. Where a cad model contains all the information related to features, dimensions, constraints & relationships and assembly mates etc. in the history tree. Users can modify any feature or dimension and cad model will get updated on the fly.
One interesting feature of parametric cad modeling is family table. In this, new similar designs can be generated just by entering data in a table. For example, If you have M4 x 10 screw parametric cad modeling with family table. You can generate M3 screw cad models in different lengths just by entering length data in a table.
Parametric modeling is mostly used where engineers are working on similar types of products and one design is dependent on another.
But Sometimes, CAD model history becomes a major problem for parametric cad designs. For example, any change in cad model features has an impact on all dependent features. As a result, the complete cad model is updated. Any change in feature can break the cad model if the cad model design intent is not correct.
Parametric CAD Modeling SoftwareFollowing is the list of parametric cad modeling software:Features of Parametric CAD Modeling:
Following are the major features of parametric cad modeling technique.
- Dimension driven.
- Structured CAD modeling.
- Feature history.
- Parent child relationship.
- Sketch constraints.
- Part, assembly and drawing modes.
- Assembly mates.
Benefits of Parametric Modeling:
Using parametric cad modeling in cad designs has the following advantages.
- Most parametric cad modeling software also have basic direct cad modeling features as well.
- Industry specific parametric cad Software are also available.
- Designed parts can be reused.
- CAD model indicates Product design intent.
![Parametric Modeling Autocad Parametric Modeling Autocad](https://www.dlt.com/sites/default/files/styles/social_share_image/public/blogfeaturedimages/2019-09/autocad_2014_1600x933-1.jpg?itok=StYiHzRi)
Challenges with Parametric CAD
Following challenges come up while using parametric cad modeling.
- Good modeling practices need to be followed.
- Long learning curve.
- Difficult to modify dumb files (step/iges).
- For large cad models, the feature regeneration process is slow.
- For any modification in cad data. CAD users need to understand complete feature history.
Direct CAD Modeling (History Free CAD)
Engineers really like the way direct modeling works. In direct modeling, features are created one on another without any history. For any design modification a new feature is added. No need to worry about any change in dependent features. Therefore Direct modeling aids designers to create CAD geometry quickly. In this way designers can focus more on innovation and creativity.
Direct modeling also works best for dumb parts (step/iges) or where part design history is not available. Therefore direct cad modeling is more popular during the initial design phase.
Direct CAD Modeling SoftwareFollowing is the list of direct cad modeling software.Autocad 3d Parametric Modeling
Features of Direct CAD Modeling:
- Flexible CAD Modeling Process.
- Feature history is not available.
- Direct Editing.
- Parent Child relationship is not available.
- Parts and assemblies are created in one single mode.
- Design Constraints and mates are not used.
Benefits of Direct CAD Modeling:
Following are the advantages of direct cad modeling technique.
Parametric Modeling Autocad
- Any type of geometry can be created or edited.
- Works best with native and dumb data (step/iges).
- Designers can concentrate on innovation and creativity because there is no need to plan for cad modeling.
- Short learning curve.
- Geometry editing is independent of how it is created.
- Relatively smaller file size.
Challenges of Direct CAD Modeling:
Autocad 3d Parametric Modeling
Following are the limitations of using direct cad modeling.
Parametric Modeling In Autocad
- Cad design automation is not possible.
- Design intent from the cad model is not visible.
- Legacy data can not be used.