You are currently viewing Parametric Modelling

Parametric Modelling

Parametric is a term used to describe a dimension’s ability to change the shape of model geometry as soon as the dimension value is modified.

Feature-based is a term used to describe the various components of a model. For example, a part can consists of various types of features such as holes, grooves, fillets, and chamfers. A ‘feature’ is the basic unit of a parametric solid model.

Parametric modelling uses the computer to design objects or systems that model component attributes with real world behaviour. Parametric models use feature-based, solid and surface modelling design tools to manipulate the system attributes. One of the most important features of parametric modelling is that attributes that are interlinked automatically change their features. In other words, parametric modelling allows the designer to define entire classes of shapes, not just specific instances. Before the advent of parametrics, editing the shape was not an easy task for designers. For example, to modify a 3D solid, the designer had to change the length, the breadth and the height. However, with parametric modelling, the designer need only alter one parameter; the other two parameters get adjusted automatically. So, parametric models focus on the steps in creating a shape and parameterize them. This benefits product design engineering services providers a lot.

The Parametric Modelling Process

Parametric models are built from a set of mathematical equations. For parametric models to have any legitimacy, they must be based on real project information. It is the modernity of the information examination techniques and the breadth of the hidden undertaking information which decides the viability of a modelling solution.

There are two popular parametric representation models:

Constructive Solid Geometry (CSG)

CSG defines a model in terms of combining basic (primitive) and generated (using extrusion and sweeping operation) solid shapes. It uses Boolean operations to construct a model. CSG is a combination of 3D solid primitves (for example a cylinder, cone, prism, rectangle or sphere) that are then manipulated using simple Boolean operations.

Boundary Representation (BR)

In BR, a solid model is formed by defining the surfaces that form its spatial boundaries (points, edges, etc.) The object is then made by joining these spatial points. Many Finite Element Method (FEM) programs use this method, as it allows the interior meshing of the volume to be more easily controlled.


These are the benefits offered by 3D parametric modelling over traditional 2D drawings:

  • Capability to produce flexible designs
  • 3D solid models offer a vast range of ways to view the model
  • Better product visualization, as you can begin with simple objects with minimal details
  • Better integration with downstream applications and reduced engineering cycle time
  • Existing design data can be reused to create new designs
  • Quick design turnaround, increasing efficiency

Parametric Modelling Tools

There are many software choices available in the market today for parametric modelling. On a broad level, this software can be categorized as:

  • Small scale use
  • Large scale use
  • Industry specific modelling

Of the three, the last category (viz. industry specific parametric software) has gained in popularity.  A few of the leading industry software is:


Introduced in 1995 as a low-cost competitor to the other parametric modeling software products, SolidWorks was purchased in 1997 by Dassault Systemes. It is primarily used in mechanical design applications and has a strong following in the plastics industry.


Dassault Systemes created CATIA in France in the late 1970s. This sophisticated software is widely used in the aeronautic, automotive, and shipbuilding industries. 

Creo Parametric is the standard in 3D CAD software. It provides the broadest range of powerful yet flexible 3D CAD capabilities to accelerate the design of parts and assemblies.

This Post Has 43 Comments

  1. cinayet süsü izle

    There is definately a great deal to know about this issue. I like all the points you have made. Juditha Shea Cadel

  2. access

    Hiya, I am really glad I have found this info. Nowadays bloggers publish only about gossip and net stuff and this is actually frustrating. A good website with exciting content, that is what I need. Thanks for making this site, and I will be visiting again. Do you do newsletters by email? Odessa Conrade Oriole

  3. watch

    Great, thanks for sharing this blog post. Really looking forward to read more. Want more. Zitella Jeramey Raquela

  4. yabanci

    Heya i am for the first time here. I found this board and I find It truly useful & it helped me out much. I hope to give something back and help others like you aided me. Jordan Carlin Lyudmila

  5. En ucuz ve yasal yollarla takipçi satan firmamız ile sizlerde sosyal medyadaki hayallerinizi gerçekleştirebilir ve tamamı gerçek kullanıcı kapasitesi bulunan cihazlarımızdan instagram takipçi siparişi verebilirsiniz!

  6. Instagram takipçi kasmak hiç bu kadar keyifli olmamıştı. İnsanlar instagram takipçi sayısını arttırmak için sisteme giriş yapıyor ve sayısız aracın yer aldığı sosyal medya paneli üzerinden limitsiz instagram takipçi hilesi yapabiliyor. Sende eşsiz maceradan ve popülerlikten uzak kalmamak için hemen adresine gir ve instagram takipçi kazan!

  7. harmoniqhealth

    I’d like to thank you for the efforts you’ve put in writing this blog.
    I am hoping to view the same high-grade content by you in the future as well.

    In fact, your creative writing abilities has inspired me to get my very own site now 😉

  8. ayak resimleri

    En güzel ve en bakımlı ayak resimlerinin paylaşım platformu.

  9. takipçi satın al

    Heya are using WordPress for your blog platform?
    I’m new to the blog world but I’m trying to get started and create

  10. takipçi

    Free Followers? Bot instagram followers no password!

  11. Kara

    Your style is unique in comparison to other people I’ve read stuff from.
    Thanks for posting when you’ve got the opportunity, Guess I’ll just bookmark this page.

  12. yeni sevgilisi

    Kaan Yıldırım’la olan ilişkisinin kendisini yorduğunu ve Mehmet
    Dinçerler’e ilk görüşte aşık olduğunu belirten Hadise, ‘Kaan beni çok yordu.
    Savaştan çıkmış gibiydim. Daha önce bitirmek istedim, ‘toparlayalım’ diye yalvardı.
    Her şeyime karışıyordu; işime, fotoğraflarıma.
    ‘Ailem ilişkinin basında çıkmasını istemiyor.’ diyordu.
    Mesaj atıp bitirdim. Kendisine tahammülüm kalmadığını belirttim.
    Mehmet ise ilk bakışta aşk oldu” dedi.
    yeni sevgilisi

  13. Bruce

    you are actually a just right webmaster.
    The web site loading velocity is amazing. It sort of feels that you are doing
    any distinctive trick. Furthermore, The contents
    are masterpiece. you’ve performed a wonderful process on this topic!

  14. Carlton

    Oh my goodness! Amazing article dude! Thank you,
    However I am experiencing issues with your RSS.
    I don’t understand why I cannot subscribe to it. Is there anyone else having similar RSS problems?
    Anyone that knows the solution will you kindly respond? Thanks!!

  15. Staci

    Great post. I was checking continuously this blog and I’m impressed!
    Very helpful info particularly the last part 🙂 I care for such information much.
    I was seeking this certain information for a very long time.
    Thank you and best of luck.

  16. Dorthy

    Do you mind if I quote a couple of your posts as long as I provide credit and
    sources back to your weblog? My blog site is in the exact
    same niche as yours and my visitors would certainly benefit from some of the information you present here.
    Please let me know if this alright with you. Many thanks!

  17. Phillip

    Thank you for another magnificent post. The place else could anyone get that kind
    of info in such a perfect method of writing?
    I’ve a presentation next week, and I’m on the search for such info.

  18. Selma

    This information is priceless. Where can I find out more?

Leave a Reply