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    CAD Engineering Services

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CAD Services

CAD Services Details

CAD Design Services

Conceptual engineering is an important phase of the development process, in which rapid idea capture is paramount. Conceptual design is the explicit construction of ideas or concepts to visualize a product and for alternative designs to evolve.  NESTech will take your product from Concept to Reality. Based on customer specifications, we will evaluate numerous concepts and develop the one that best fits the needs. Product Cost, Time to Market and Product Quality are our primary concerns. Our concept design process encompasses digital visualization with 3D layout for packaging studies. While we design we will take care of the down steam applications like simulation, tool design and manufacturing.

Project Support and Process Automation

NESTech will assist you in any stage of your project. When you work with us, we become an integral part of your team and are fully committed to meeting your project goals and delivery schedules. Our services include model generation, production drawing creation, Tooling, simulation and manufacturing.

We understand that our customers always want to develop efficient methods to reduce the product design cycle time. We help companies automate their design processes through the creation of "Template" parts and assemblies, which reduces the product design cycle considerably. NESTech will also develop "best practices" and process documentation to help automate the creation of similar products.

NESTech engineers have the experience, background and tools to help you convert your ideas into real products.

NESTech CAD Service - Customer References

Full Mould Analysis
Customer Reference

Process Plant Manufacturer, USA

Road Construction Machinery Builders   Onsite and Offsite  
Since 8+ years   Team of 20+ Engineers

Work Done
  • Live design project support - Virtual CAD Team
  • Engineering design services
  • Design evaluation using FEM Analysis
  • CFD analysis to find optimization pressure in lines
  • Production quality 2D drawing creation
  • Special Purpose Machines design
  • Concept design
  • Jigs and Fixtures design
  • Simplified model creation for marketing, FEA & 3D printing
Full Mould Analysis
Customer Reference

Global Construction Equipment Manufacturer

Road Construction Machinery Builders   Onsite and Offsite  
Since 8+ years   Team of 20+ Engineers

Work Done

  • Live design project support - Virtual CAD Team
  • Engineering design services
  • Design evaluation using FEM Analysis
  • CFD analysis to find optimization pressure in lines
  • Production quality 2D drawing creation
  • Special Purpose Machines design
  • Concept design
  • Jigs and Fixtures design
  • Simplified model creation for marketing, FEA & 3D printing
Cast-Designer Fast Cooling Channel analysis for casting simulation

Cooling System Design

Cooling channel Calculator & Advisor Wizard

Cast-Designer introduced a cooling channel calculator, it can help the user calculate the total length of the cooling channel with a given production rate. The utility considers many factors such as the part mass and casting alloy, mould size, production rate, cooling channel diameter, media flow speed and heat affection rate. The final result will be a cooling channel diameter and total length.

Now Cast Designer includes One-Button Cooling System Design from Version 6.2

Fast Cooling Anlysis

Cast-Designer introduces fast cooling system analysis method to help designer check the cooling system design at the very early stage, it is fully integrated to the cooling system design interface and the user can get result within 3 to 5 minutes.

Cast-Designer Production Optimization for HPDC and GDC casting simulation

Production Optimization with Cast-Designer

Cast-Designer's Production Optimizer intelligently adjusts die spray, cooling/heating channels, and cycle timings to maintain optimal mould temperature and boost productivity. It helps avoid defects like cold shuts or die soldering while improving die life and reducing maintenance costs.

  • Considers complete cooling/heating systems with individual channel control.
  • Supports different die sprays and coatings for thermal efficiency.
  • Automatically optimizes cycle timing for best quality and cost.
  • Improves die life and reduces operational downtime.
  • Provides quick production cost estimates for quotations and cost control.
Cast-Designer Production Optimization for HPDC and GDC casting simulation

Full Chain Simulation

Cast-Designer enables full chain simulation by exporting casting results to external CAE tools for structural analysis and lifetime prediction. This provides a more realistic representation of part performance under "as-cast" conditions, including key casting defects.

  • Simulates casting with actual defects like shrinkage porosity, micro porosity, and residual stresses.
  • Enhances structural analysis accuracy by evaluating manufactured part strength-not just design intent.
  • Direct export to MSC Nastran and NEI Nastran with mapped material properties.
  • Supports ASCII CDF format for custom CAE integrations, as documented in the user manual.

NESTech CAD Project References

Cast-Designer HPDC Simulation

HPDC & GIGA Casting Simulation

Cast-Designer uses advanced CFD technology to simulate HPDC processes with precision. It helps optimize gating, venting, and process parameters to improve quality and reduce defects. Extensive support for GIGA Castings

  • Gating Design Advisor follows NADCA standards for full guidance on gating systems.
  • Considers surface tension, slushy flow, turbulence, splash, and wall pull-away effects. Provides velocity, pressure, material age, and gate-wise flow paths.
  • Simulates shrinkage porosity with intensification pressure.
  • HPDC / GIGA Casting module comes with many industry's unique quick design tools.
  • More Details
Cast-Designer Stress & Distortion analysis of casting simulation

Gravity Casting Simulation

With the Cast-Designer mechanical stress module, the user can make the stress and distortion analysis. The following result could be obtained after the simulation:

  • Casting and mould stress distribution
  • Part deformation and distortion
  • Compensation for part deformation and distortion
  • Displacements
  • Gap formation between the casting and mould
  • Predict elastic springback
  • Hot tearing
  • Die life fatigue
Cast-Designer for Low Pressure Die Casting for casting simulation

Low-Pressure Die Casting Simulation

Cast-Designer's can simulate real-world casting conditions in LPDC. It features a powerful design wizard, supports variable pressure inputs, and offers pre-defined templates for quick and efficient process setup. Cast-Designer ensures precise thermal control through detailed modelling of cooling systems and timing.

  • Includes a design wizard for phase-wise LPDC setup and parameter definition to simulate realistic inlet conditions..
  • Models cooling channels and spray systems for effective heat management.
  • Simulates cooling mechanism timing to maintain thermal balance of the mould.
  • Helps optimize die design and casting quality by reducing thermal defects.
Cast-Designer Core Shooting Core blowing simulation

Core Blowing Simulation

Cast-Designer's core blowing simulation helps optimize the core filling process by analyzing how sand is blown into the core box. It allows users to adjust nozzle and vent positions to ensure proper filling, pressure, and sand density.

  • Determines the best nozzle configuration by adjusting number and positions.
  • Optimizes venting nozzle placement for efficient air escape.
  • Analyzes sand packing pressure inside the core box.
  • Evaluates final sand density distribution for uniform compaction.
  • Helps prevent core defects caused by poor sand flow or air traps.
Cast-Designer Core gas in casting simulation

Core Gas Simulation in Casting

When molten metal heats sand cores, chemical binders decompose and release gas. Without proper venting, this gas can enter the metal, causing porosity defects. Cast-Designer simulates core gas behavior to help prevent such issues.

  • Predicts gas generation based on binder and temperature.
  • Simulates pressure buildup and gas flow inside cores.
  • Highlights high-risk zones for gas-related defects.
  • Optimizes vent design and placement.
  • Supports better core layouts for improved casting quality.

NESTech CAD Services Portfolio

Engineering Design Services
3D CAD Data Migration
CAD Customization
Electrical CAD Services
Complex Castings
Reverse Engineering
PLM Services
CAD Staffing Services
Casting Flow Simulation
Casting Consultancy

HPDC Gating Design Wizard

The HPDC Gating Design Wizard streamlines gating design by accepting key casting inputs and delivering optimized results quickly and accurately.

  • Inputs: casting weight, projected area, material, shot machine, and biscuit size.
  • Generates PQ2 graph to validate shot machine capacity.
  • Outputs include filling time, ingate velocity, required ingate area, phase velocities, and shift times.
  • Calculates casting pressure, clamping force margin, and runner cross-sections for Smart Runner Design.
  • Ensures fast, efficient, and reliable gating setup with minimal manual effort.

QuickCast Flow Simulation

QuickCast enables rapid flow simulation in minutes by simply placing ingates with a point, direction, and weight factor. Ideal for early-stage design, it helps optimize part orientation and gating layout quickly.

  • Fast simulation with minimal input
  • Visualizes flow from each ingate, flow length, filling time, gas entrapment, and last fill region
  • Supports up to 1-million mesh models in under 5 minutes
  • Reduces design iterations, time, and cost

QuickCast Flow vs CFD Flow Comparison

QuickCast enables rapid flow simulation in minutes by simply placing ingates with a point, direction, and weight factor. Ideal for early-stage design, it helps optimize part orientation and gating layout quickly.

  • Fast simulation with minimal input
  • Reduces design iterations, time, and cost

Create Runner CAD Geometry in Cast-Designer

Casting Simulation Services
Runner Centre Lines

Place Sprue. To create runner, select an ingate (created in previous step) and pick a point towards sprue, runner automatically created as per width of the ingate size.

Casting Simulation Services
Auto Runner Sections

select other ingates and points of the desired location of the runner on screen, runner automatically created with correct width, draft, height as required for the ingate

Casting Simulation Services
Auto Runner in 3D

View runners in 3D, runner section width and height gradually reduced with proper draft angle. Each runner width is as per the width required for the ingate.

Casting Simulation Services
Auto Merge Runners

Select 1st runner as master and select 2nd to merge, runner section of the 1st runner automatically adjusted where 2nd runner is merging. Similarly in the other side runners.

  • Create fully parametric 3D runners in Minutes. From defined ingate and biscuit positions, our system auto generate a complete 3D runner system that seamlessly connects ingates and biscuits.

COMPLEX 3D RUNNER GENERATION USING 3D PROJECTION

Cast-Designer simplifies complex 3D runner creation using its built-in ParaCAD system. Just define the workspace, build the 3D die face and addendum, and use the 3D runner projection tool to generate a CAD-based 3D runner system with ease.

  • Features like ingate, overflow also follows the 3D profile

FastCooling Simulation Example

RED colored region indicates thick region and as well as that cooling is not sufficient, may leave a shrinkage porosity

FastCooling Simulation

Optimize Cooling System Design

Cast-Designer revolutionizes cooling system design with SmartCooling and FastCooling, enabling rapid analysis during the early design stage-without requiring full mold geometry or detailed HTC data.

  • Get cooling analysis results in just 3-5 minutes using casting and cooling channel geometry.
  • Modify cooling layout or parameters and instantly evaluate the effect on casting thermal performance.

This fast, geometry-based approach helps reduce development time, improve product quality, and extend die service life.

Artificial Intelligence Tools: SmartCooling

SmartCooling automates die casting cooling system design using AI to create optimized, efficient cooling layouts. The process is 10-30x faster than traditional methods and follows a powerful 3-step approach:

Step 1: Define Cooling Regions & Materials

Assign key regions based on metal flow-up to 6 main zones and 24 sub-regions. Set casting/mold materials, cooling properties, and production targets. This forms the foundation for intelligent cooling layout planning.

Step 2: Auto Generate Cooling Channels

The AI engine uses defined parameters to auto-generate a complete cooling system with parametric 3D geometry-supporting both standard and jet cooling types. This is the core of SmartCooling intelligence.

Step 3: Optimize Cooling Channels Design

Run FastCooling Analysis to evaluate performance. Instantly see the effect of any changes in channel design, position, or cooling power-enabling fast, data-driven optimization and design decisions. An Larger Example shown above.

Media Flow in Cooling Channels

In complex cooling systems, media flow within the channels can be quite intricate. Performing a thermal and flow simulation provides a detailed examination of both the media flow and temperature distribution. Furthermore, the dynamic heat transfer coefficient (HTC) can be derived from the results of the simulation, which can be used in the most accurate Full-Mould Cyclic Flow-Solidification Simulation.

Step 1: Define Media Inlets & Outlets

Assign all key parameters for the flowing medium hot or cold

Step 2: Get Media flow inside cooling channels with dynamic HTC value

Complex cooling system in GIGA casting, now can be effectively optimized.

Die-Spray Optimization: Boost Die Life & Efficiency

Die-spray is crucial in die casting-poor spray causes thermal shock, die damage, and downtime.

  • Protects critical die areas and reduces maintenance
  • Extends die life and improves casting quality
  • Simulates nozzle positions, spray timing, die temperature, and surface shape
  • Ensures optimal spray coverage and cooling balance
  • Enhanced Accuracy: Generates dynamic HTC for precise full-cycle simulation and better process control

Part Ejection Simulation

Die casting part quality can be affected during ejection, where parts separate from mold surfaces under force.

The ejection force depends on metal shrinkage and friction at the contact surfaces. Since ejection happens quickly, the static friction coefficient is key to accurate simulation.

Simulation Highlights:

  • Full mold stress simulation: Solidification + Stress with contact pressure
  • Supports solid or shell models
  • Couples with Cast-Works/CDPE for ejection process analysis
  • Outputs: Ejection time, casting temperature, residual stress, contact pressure

Frequently Asked Questions

What is Cast-Designer software used for?

Cast-Designer is a comprehensive casting simulation and optimization software used by foundry engineers and designers. It helps in gating system design, defect prediction, solidification analysis, and process optimization for various casting processes.

Which casting processes does it support?

Cast-Designer supports a wide range of casting processes including High Pressure Die Casting (HPDC), Gravity Casting, Sand Casting, Investment Casting, Low Pressure Die Casting, and Squeeze Casting.

What are the system requirements?

The software runs on Windows 10/11 64-bit systems. Minimum requirements include 16GB RAM (32GB recommended), a dedicated GPU with 4GB VRAM, and an Intel i7 processor or equivalent. SSD storage is recommended for better performance.

Is there a trial version available?

Yes, we offer a 30-day fully functional trial version. You can request it through our website, and our technical team will assist you with the installation and provide basic training if needed.

What kind of support do you offer?

We provide comprehensive support including email support, remote assistance, on-site training (optional), and regular software updates. Our support team is available during business hours with emergency support for critical issues.

Our Casting Simulation Services

Casting Simulation & Methoding Services

For Gravity, Sand, HPDC, LPDC, Investment Castings

Check your casting and predict shrinkage, porosity, flow, air entrapment defects - without incurring tooling costs or waiting for trials. Assess your method for potential defects. Optimize it for quality and yield improvement ...learn more

Quality Improvement & Yield Optimization.

Casting Simulation Services

NESTech Services and Products

  • Engineering Services

    More Info

  • IT Software Services

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  • Cast Designer Software

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Why Choose NESTech as your CAD CAE Partner?

+ Drawings Created
+ Simulations done
+ Team Members
+ Years of Experience
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RICH EXPERIENCE

 We bring 25+ years of rich experience to every project, ensuring exceptional results and unparalleled reliability.

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ON-TIME DELIVERY

 With meticulous planning, streamlined processes, and a dedicated team, we ensure that every project is completed promptly and efficiently

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EXCELLENT COLLABORATION

 We foster a culture of teamwork, communication, and mutual respect, ensuring that every project benefits from the diverse perspectives and expertise of our team members.

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COST EFFECTIVENESS

  With a multitude of projects Completed and catering to various industries, we have demonstrated excellent business results at lower cost with our domain expertise.

Some of the Cast-Designer Software Customers

NESTech Logo info@nestechglobal.com

Addresses

Registered Head Office-India:
FFA-Ramani Mathura, 87 Ansari Street, Ram Nagar, Coimbatore 641009
Works-India:
23, Thaneer Pandhal Road, 6th Cross, Peelamedu, Coimbatore 641004
International: Germany & USA

Engineering Services

  • CAD Services
  • Product Design
  • PLM Services
  • CAE Simulation
  • Structural Engineering
  • Casting Flow Simulation
  • Cast Designer Software

IT Services

  • Software Development
  • ERP Services
  • Mobile App Development
  • AI and IOT
  • App Integration
  • Business Intelligence
  • Quality Assurance
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