“What is 3D Modelling & What's It Used For?"

3D modelling | redfibre

-By Pipetech | Published on February 8, 2021

3D modelling helps simplify the engineering process by leveraging state-of-the-art software for an integrated design approach A revolution is on the horizon in the energy sector. Since the 1970s, computer-aided drafting (CAD) has been the almost exclusive means used in industry to design substations.

But today, three-dimensional models are changing the way things are done. 3D models combined with the power of advanced software simplify substation design and enable an integrated approach.

3D modelling is transforming our industry. Here are the 5 main advantages of this new design approach:

3D modelling | 3d modelling techniques | redfibre It's an ideal visualization tool 3D design has also changed the way projects are presented. 3D software allows virtual tours, which greatly facilitates the design, construction, commissioning, operation, and maintenance of a site, infrastructure, or building.

It is much easier for a customer to visualize dimensions, space, clearances, movements, and accesses with a 3D model which is incredibly realistic and where every element is detailed in it. It also results in fewer surprises during the project.

In addition, during the design stage, interdisciplinary coordination is facilitated since each participant can visualize the dimensions and interference of the equipment. The ability to incorporate different design options into the model to assess potential scenarios helps confirm decisions and spot problems early in the project.

It is easier to make changes to a project during the design stage than after construction has started. A well-designed 3D model can be used as a guide throughout the construction stage. It can also be an effective marketing tool to arouse the interest of clients by offering them the possibility to visualize and visit their project in three dimensions.

Allows you to create reference models

For example, once a substation design is complete, it can be saved as a standard model and reused for other similar projects. A saved model can thus be used as a starting point to quickly start the design of a station.

Once changes are made based on site requirements, it is then easy to produce the design deliverables. As libraries fill with components, modelling time decreases. The goal is to automate the process of creating standardized models and unique designs using advanced 3D modelling techniques.

Since a large proportion of existing substations were built over 50 years ago, detailed plans for these infrastructures are sometimes incomplete, outdated, or completely non-existent. Terrestrial LiDAR, a laser data acquisition tool, is particularly useful for substation expansion projects.

It allows the acquisition of extended data of the elements of an existing substation (equipment, structures, building, foundations, conductors, lines). Technicians only need a few hours to digitize the substation using Lidar laser.

The point clouds collected to make it possible to create a 3D model that can be used as a virtual electrical substation for engineers. This model, transferred to 3D software, Indisputable advantages 3D modelling provides indisputable advantages. A new era begins in the elds of engineering and the design of energy supply systems.

Yet this technology has evolved so much in recent years that it has taken our movie screens, video games, televisions, and advertisements by storm. In short, it is everywhere and so realistic that it seems more and more accessible and easy to achieve.

But how does it work?

Let's start by demystifying the primary step necessary for such glaring results: 3D modelling.3D modelling is the first step in 3D computer graphics, this image synthesis technique that allows you to create representations of objects in perspective. The action of modelling is in a way the fact of representing in three dimensions the objects that one wishes to visualize.

For example, it makes it possible to put objects in the situation before proceeding to their manufacture.

Computer-aided design (CAD) Almost anything is possible to represent with 3D modelling. By using one or more specialized software, the graphic designer can apply characteristics to each of the elements that were first modelled (for example texture or assembly) in order to make them more real and put them in the situation.

It is even possible to set objects in motion and program their reactions.

Who is it for?

Of course, 3D modelling is essential in the video games and animated films sector but is also used in several other elds of activity.

Since it allows very precise designs of furniture and products, among others, it is very useful in the elds of scenography, merchandising, the automotive industry as well as interior, commercial and industrial architecture.

In addition, it is also highly regarded in the eld of education and science, due to its ability to recreate the human body in great detail virtually and many other phenomena.

Who can get down to a 3D modelling project?

The possibility of creating virtual worlds where the imagination is the only limit can seem very appealing.

More and more followers are occasionally indulging in it, for the pleasure of discovering at their own pace all the possibilities offered by 3D modelling.

A variety of different software is now available, ranging from amateur to professional level. Always simpler and more accessible, some software offers very interesting features.

Although for some projects drawing skills are not essential since it will mainly be necessary to follow technical plans, the creation of true characters requires some knowledge.

However, to make it his profession, advanced skills are necessary.

It takes proper training and specialized equipment, including a computer that contains an excellent graphics card and 3d rendering process is important.

There are several modelling methods, which will prove to be appropriate depending on the task at hand (polygons or polygonal modelling, by surface subdivision, by geometry, by curves, curved surfaces.

3D modelling Process is essential and represents one of the most current career choices.

Very popular with fans of video games and animated films, it can nevertheless be useful in many other elds of employment.

Several establishments offer complete training, which will allow you to discover all the attractions. If you are creative, patient, and able to work under pressure, don't hesitate to do it.

Data collected in the eld becomes 2D and 3D maps Computer-assisted drawing (CAD) allows technical drawings to be produced using specific software.

This is the execution of graphics commands.

At the Study Office of the Pipetech company, CAD designers produce maps and plans of localities, roads and infrastructures, realizations in vector mode (coherent lines) in 2D and 3D, from data collected in the eld by the topographic surveyors:

Topographic plans, cartography, levelling Overhead networks, flexible networks, wet networks Longitudinal sections, cross-sections Earthworks plans: For sanitation and public lighting Retail Notebooks 3D modelling (buildings, structures, etc).

Interior plans Prolong plans. In addition to the topographical surveys before work, studies, siting, site monitoring, we also intervene in the reception phase with the production of prolong plans and other parts constituting it.

The development of prolong plans is essential for the maintenance source of your networks, for the prevention of accidents (underground gas pipelines), or for your planning of subsequent work. We carry out standardized prolong plans according to specific graphic charters.

It is then possible to make it more realistic by adding textures and animation if necessary has the experienced skills necessary for the realization of your 3D models of objects.

The procedure depends, of course, on the product category concerned.

3D modelling basically stands for the representation of spatial data in a three-dimensional space.

Their use can be found in the eld of cartography as well as geoinformatics. Spatial data has always been levelled by a corresponding projection onto a plane, e.g. a map sheet.

Nowadays the third dimension is seen as a further possibility to make spatial information available to the card user through an adapted graphic design.

The aim is to use the advantages of the third dimension and to avoid the disadvantages as far as possible.

The clear advantages of a real spatial representation are the viewer's free choice of location, the three-dimensional representation, and the associated lower mental performance of the map interpretation.

The disadvantages include the mostly existing scale variations within the map and the different degrees of obscuration of nearby objects.

2D modelling vs. 3D modelling

3D modelling | 2d 3d modelling  | redfibre While many areas are still working in 2D, others have long recognized and implemented the advantages of 3D modelling.

3D modelling. Professional and experienced 3D modelers achieve almost the same evaluation time as 2D modelers.

BIM capability for 3d Perfectly suited for further processing in BIM software.

Further Information in 3d All additional information can be saved, retrieved, output, and listed directly on the property.

The output of component lists (e.g., window and door lists)

The component lists can be generated automatically in parametric 3D modelling software. Sources of error by the processor himself are minimized.

Component libraries, blocks in 3d Many parametric 3D software solutions already offer component libraries that make it easier to get started with 3D modelling.

In the course of modelling, however, you will quickly and that these specifications are usually not sufficient to process an entire project.

The creation of new user-defined library elements (e.g. Autodesk Revit families) requires some experience and usually does not work in practice without training.

Cooperation between different trades in 3d If the existing model is available in 3D, all cooperating trades should also create their plans in 3D.

A combination of 2D and 3D data makes little sense for planning and recognizing narrow, complicated areas (e.g. in technical rooms).

Collision check-in 3d With the help of 3D models, collisions on the PC can often be eliminated before they occur on the construction site.

For this purpose, all trades should model in 3D so that these models can be combined and checked later.

In addition to the collision check, free spaces (working spaces) can also be defined, which are particularly valuable during construction. Visualization in 3d The 3D model is perfect for visualization.

In combination with a point cloud and the scanned area around the object, it is possible to demonstrate to the customer what the finished house should look like in the area later.

You can present solar studies or the furniture that will be finished later.

Thanks to VR technology, the customer can also move through the model himself and understand what is being suggested to him much better.

What used to be shown elaborately with individual photos or hand-built models can now be generated on the computer.

If the customer doesn't like something, it can be changed quickly and easily on the PC.

Data Size in 3d Big to very big.

Due to the significantly more information in the model plus the third dimension, the data from 3D models are significantly larger than the 2D data.

These le sizes could make the exchange between the project partners difficult without prior agreement.

Experience has shown that external data carriers, your own server, or cloud-based solutions (e.g. BIM 360, SharePoint) offer good exchange options.

Exchange format in 3d -

3D modelling | 3d landscape modelling  | redfibre The exchange format for 3D models is constantly evolving and improving. When using the 3D models or three-dimensional objects as reference models, there are hardly any changes in performance. When importing directly, the export and import settings should be carefully checked and defined.

Advantages of 3D planning and procedural modelling in construction Digital planning methods have been standard among architects and engineers for decades.

In the meantime, 3D building models have been called for in the real estate industry for several years.

What is already state-of-the-art in other industries is being used very hesitantly by planners.

Behind this is the fear of increasingly complex planning. But the opposite is the case, the advantages of the 3D building model outweigh the advantages.

Even when designing buildings, three-dimensional work is the norm for architects and planners.

Even the first creative strokes with the pencil show that in the first phase every idea is consistently thought of in three dimensions.

The elaboration of these first drafts is also done with three-dimensional means: The best ideas are checked and refined with the possibilities of model building.

Step backward out of habit

The first drafts and approval planning are mapped again in 2D within the construction industry.

This is partly due to the plans required by the building authorities as to the approval authority and partly due to the power of habit.

In mechanical engineering or in the automotive industry, it is inconceivable to forego a complete dimension in the design phase of a complex project.

The product development of modern vehicles and machines is inconceivable without a 3-D construction that is accurate to the millimetre.

Even if very few architectural offices still completely do without digital CAD planning, you can only work competitively today if you can exchange your computer-generated planning with both professional builders and specialist professionals planners.

Experience in mechanical engineering and the automotive industry has shown that the advantage of 3D planning is indisputable.

This is not always recognizable at first glance, because quite a few architects only use 3D models and 3d characters for presentation purposes to builders and investors or as an illustration in architectural competitions. However, these 3D-generated computer models are used exclusively for visual representation and, due to the lack of a database, cannot serve as a basis for in-depth planning.

Such animations cannot be compared with real 3D building models.

3D building models create added value The idea of a "digital chain" between all phases of planning and a complete, final 3D building model is more than just theory.

In the future, investors and builders will not only demand that their building is erected free of defects but also require all building data that is necessary for the subsequent management of the new building. Because these data are to be regarded as special services- which are not automatically owned by the architect - a separate remuneration can be negotiated according to current case law.

Consistent modelling of building planning as a 3D model creates added value. Leading international architectural offices are already working on the earliest design models with computer-generated shapes and can print them out as an exact physical plastic model using 3D printers.

A 3D model can be continuously updated, changed, or expanded with the involvement of all specialist planners, from the first building draft to the work planning to the complete structure including the room book, the building services, and furnishings.

Within the 3D model, all client requirements, which are the basis for every specialist planner's own services, can be recorded in a spatial manner.

What used to be recorded in paper form in extensive printouts can now be noted directly and legally in the 3-model. Changes to the 3D complex models and virtual models in real-time The advantages of virtual planning are obvious. Permanent data exchange between all planning partners ensures that every specialist planner professional works with an identical planning status at all times.

This even works across national and language borders.

Changes can be communicated without wasting time.

3D modelling | auto 3d modelling  | redfibre Collisions or spatial problems can be identifiedfied visually without creating ceiling mirrors, sections, or detailed drawings.

Installation or maintenance scenarios can be checked in every planning phase thanks to the 3D representation of solid models as well.

More transparency through the 3D building model makes the planning process more transparent and is able to log every plan change as a neutral instance. In the event of a dispute, this results in more legal security between all those involved in the planning.

The building design can be evaluated in conjunction with the construction and the complete building services. Many errors become visible and do not have to be searched for by comparing plans in detective work. This makes it easier to check the quality of the services provided by the specialist planner.

The defect-free building owed to the client can be built more efficiently and faster thanks to a higher planning quality.

Cost security also increases, because materials can be verifiably evaluated individually and are automatically corrected as partial quantities even if the plan is changed.

With the 3D building model, the architect can rely on an established methodology that enables high-quality planning, increases cross-planner efficiency, and increases transparency from the design to the handover of the building.

BIM in the 3D modelling of a construction site: properties, special features, and advantages BIM (Building Information Modelling.

It is finding more and more areas of application such as 3D and 4D modelling of construction sites.

Here are the properties, special features, and advantages offered by BIM in this area.

The correct organization of the site enables preventive and protective measures to be taken for workers, equipment, and machines on the construction site.

This leads to efficient and fast execution of the work as well as time savings. With an efficient application, there is consequently also a cost-saving.

Let us now see how a construction site design can be carried out using BIM-oriented, 3D modelling.

The concept of construction site design on a construction site, some complex but necessary steps have to be carried out in order to implement a structure, such as

• Identification of the necessary equipment and machines.

• Positioning the equipment within the construction site.

• Identification of the areas that are intended for processing.

• Definition of the paths reserved for the transit of vehicles.

• And much more. For the best possible optimization of processes and management of resources, it is essential to design the construction site correctly.

The design of the construction site is the initial phase from which the entire construction process depends. The construction site is one of the starting points for the fourth industrial revolution Industry.

The BIM-oriented methodology paves the way for a more efficient design of the construction site. BIM and parametric modelling of the construction site With the BIM methodology, it is possible to design the construction site thanks to 3D parametric modelling.

For example, let's analyse the design of scaffolding

Using parametric objects, it is sufficient to indicate the various dimensions of the scaffolding to create a complete scaffolding, with

• Scaffolding frame

• Longitudinal struts

• Handrails

• Footboards.

• and more. This simple modelling comes in handy, especially for the various changes that are made on a construction site. For example, the scaffolding is subject to many variations during the construction phase.

The same approach applies to all other parametric construction site objects:

• Logistics (fences, roads, storage rooms, offices)

• technological (scaffolding, cranes, machines, systems)

• natural (vegetation, rivers, steep slopes)

• anthropogenic (residential and production activities, streets) inside and outside the construction site.

Digital construction site Being able to have a virtual construction site model opens the way to numerous possibilities.

Think, for example, of the digital twin concept: The digital twin (digital twin) is an exact copy, i.e. a virtual model, of the real object on which tests are carried out in order to avoid possible problems and/or errors that affect profitability and time savings.

With the virtual construction site visual models and creation area, it is possible to carry out simulations of the construction process in order to check the following:

character design

• possible problems associated with the organization and design decisions

• Operating procedures

• preventive and protective measures.

In a virtual construction site model, the following processes are carried out

3D modelling | 3d body modelling  | redfibre • "Enter" (Walk-Through)

• "Fly-through"

• animate the objects (workers, equipment, machines, etc.) to study spatial interferences, simulate certain meteorological conditions, etc. The virtual model also makes it possible to obtain various information and documents:

information on setting up the construction site and changes to it Project documents extracted from the model:

starting shape


Curve types


Visual representations

Digital representation

Mathematical representation

• Floor plans

• Cuts

• Views

• Site plans

• Three-dimensional sectional drawings

• Perspectives

• Construction details.

All these reports make it possible to visualize the construction site at a specific moment. It is therefore obvious what advantages a digital construction site model offers.

Security and collaborative working, the specialists involved in the design process can share the digital 3D models of their own disciplines according to the precise rules of the BIM methodology.

For example, the technician involved in the design of the construction site can “insert” the virtual architecture, statics, and technical system model.

The so-called federated digital model has created: a common environment in which to analyse design decisions of the entire process.

BIM software for construction site safety IT makes it possible to design the construction site in 3D and 4D and to create the real, virtual model, which is useful for the technical deepening of safety and the simulation of various activities.

This was all about 3d modelling we need to know to move forward.
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