Vectorisation of Drawings (CAD Conversion & Digitisation)

We provide professional vectorisation services for converting raster drawings (JPG, PNG, scanned or photographed documents) into precise, editable CAD formats such as DXF, DWG, or 3D models (STEP).

Unlike raster images, vector-based drawings enable full editing, scaling, dimensioning, and seamless integration into engineering workflows.

What is Vectorisation?

Vectorisation (digitisation) is the process of transforming non-editable drawings into structured CAD data suitable for engineering and production.

Key Capabilities

• Editing and modification of geometry
• Accurate scaling and dimensioning
• Updating of technical information (materials, tolerances, standards)
• Reuse in design, manufacturing, and documentation

This process ensures that legacy or non-digital drawings become fully usable in modern engineering environments.

Vectorisation Methods

Different approaches are used depending on the quality and complexity of the source material.

Manual Vectorisation (Recommended)

Performed by experienced engineers directly in CAD systems.

• Highest accuracy and full control
• Suitable for engineering and production use
• Ensures correct geometry, dimensions, and standards compliance

Automatic Vectorisation

Performed using software tools.

• Faster initial conversion
• Requires significant manual correction
• Limited accuracy, especially for complex drawings
• Generally not suitable for engineering-grade results

Approaches to Vectorisation

The choice of method depends on the project requirements and intended use.

2D Redrawing (CAD Reconstruction)

The original drawing is manually recreated in CAD.

• Fast and cost-effective
• Suitable for simple geometries
• Limited parametric control

Risks

• Dimensions may not be linked to geometry
• Potential inaccuracies due to distorted or low-quality source images

3D Model-Based Vectorisation

A full 3D model is created, and drawings are generated from it.

• Highest level of accuracy and consistency
• Ideal for modifications and future development
• Required for complex parts and assemblies

Vectorisation with Updating

When working with legacy drawings, we upgrade them to current engineering standards (ISO, DIN, or project-specific norms).

Updates Include

• Tolerances and surface finishes
• Materials and coatings
• Technical notes and symbols
• Manufacturing specifications

This ensures that the drawings are fully compliant and production-ready.

Vectorisation with Redesign (Refinement)

If changes are required, we go beyond conversion and perform a complete redesign.

Scope of Redesign

• Modification of geometry and structure
• Optimization of materials and manufacturing processes
• Creation of new 3D models and updated drawings

This results in a modern, optimized, and production-ready design.

Assembly Drawings and Verification

We also handle complex assemblies and multi-component systems.

Assembly Services

• Vectorisation of assembly drawings
• Creation of individual part models and full assemblies
• Assembly verification and consistency checks
• Updating of BOMs and technical specifications

Scope of Services

We offer a comprehensive range of CAD conversion and digitisation services.

Core Services

• Conversion of scanned drawings to CAD (DXF, DWG, STEP)
• Redrawing and CAD reconstruction
• 3D modelling based on 2D drawings
• Updating to modern engineering standards
• Drawing correction and optimization
• Assembly modelling and validation

Your Benefits

Working with Roltec ensures reliable and efficient results.

Key Benefits

• Fully editable and accurate CAD data
• Reduced production errors and rework
• Compliance with modern engineering standards
• Faster and more efficient workflows
• Long-term usability of legacy documentation

Engineering-Level Accuracy

Our engineers combine CAD expertise with real manufacturing knowledge, ensuring that vectorised drawings are not only visually correct but also technically accurate and ready for production.

Conclusion

Vectorisation of drawings is essential for integrating legacy documentation into modern engineering processes. With a structured approach and deep technical expertise, we deliver precise, reliable, and production-ready CAD data for industrial applications.