CAD Services

3D Technical Design Ltd have built an exceptional reputation in supplying specialist CAD design and technical services to the Heat Network sector.

3D Technical Design can provide a range of high quality and flexible CAD draughting services, either operating under our client’s own quality standards, or 3DTD’s own BSI accredited ISO 9001-2015 quality system.

We can supplement a client’s existing capability during times of peak demand and provide resources who are trained and experienced in delivery across a broad range of Heat Network CAD requirements.

We understand the unique complexity and demands of Heat Network projects, and will seek to identify a solution from our extensive pool of CAD professionals, who operate the latest CAD packages, technology, and work methods in accordance with industry best practice.

We operate in accordance with industry CAD Standards for; CAD layering, annotation, file naming etc, which facilitates easy flow of design and drawings between our client and their stakeholders. 

We are also flexible and can adopt tailored CAD/BIM requirements.

CAD & Visualisation Software

  • AutoCAD 2018
  • AutoCAD Civil-3D 2018
  • Navis Works
  • Revit

GIS Software

  • Q-GIS

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Our Services

2D Drawing & Detailing

  • General Arrangements (GA)
  • Plan Drawings
  • Structural Drawings
  • Technical illustration documents (Concepts)
  • Schematic diagrams
  • Piping & Instrumentation Diagram Drawings
  • M&E Drawings (MEP)
  • Fabrication Drawings
  • Feasibility Route and Dimension Drawings
  • Digitalising historical drawings
  • Digitalising sketches
  • 2D as-built drawings for Buried Infrastructure
  • Duct Route Drawings
  • Survey area drawings
  • Drawings for planning applications/Red Line Drawings
  • Compound area and fencing drawings

3D CAD Modelling

  • 2D to 3D Conversions
  • 3D Solid, Surfaces & Polygonal meshes
  • 3D Conceptual Modelling
  • TIN (Triangular Irregular Network) Terrain
  • 3D Pipe and communication duct route modelling
  • 3D Navisworks and clash detection
  • 3D modelling of chambers and building entry details
  • 3D Concept illustrations

Developing Solutions

Where bespoke CAD services are required, 3DTD are adept at developing solutions with our clients. 3DTD are confident that we can support and resource for varying needs, using our experience and pool of CAD specialists.

3D Rendering & Animations

  • Technical 3D Visualisations
  • 3D Assembly and walk through animations


  • DWG to; DGN, DXF, IFC, NWF, NWD, RVT and PDF
  • DGN to DWG
  • PDF to DWG
  • RVT to DWG
  • Version Conversion (i.e. 2018 to 2000)

GIS Services

  • Perform Spatial Analysis
  • Explore data and compose maps
  • Create, edit, manage and export data

3D Technical Design Ltd – Always in Partnership.  |  Copyright 2018