A leading manufacturer of biofuel-based power generation plants — with operations in India and abroad — needed to convert existing 2D AutoCAD documentation into structured 3D data and assemblies for core plant equipment, supporting manufacturing readiness across multiple equipment sizes.

The project covered 3D data creation and 2D detailing for major plant modules including the Steam Drum, Fuel Feeding Screw, and Combustion Conveyor, delivered on an ongoing basis from ALTEN’s Pune center.

The scope included:

• Review of existing AutoCAD drawings
• Preparation of 3D data and assemblies for Steam Drum, Fuel Feeding Screw, and Combustion Conveyor across multiple sizes
• Creation of sub-assemblies
• Manufacturing and tolerance considerations
• Weld symbol additions per manufacturing standards

Challenge:

2D-to-3D Data Conversion

• Translating existing 2D AutoCAD drawings into accurate, manufacturable 3D data without a native 3D source
• Ensuring converted models reflected true design intent across varying equipment sizes

Multi-Size Equipment Range

• Managing 3D data creation for multiple size variants of the same core equipment (Steam Drum, Fuel Feeding Screw, Combustion Conveyor)
• Maintaining consistency across sub-assemblies for each size variant

Manufacturing Readiness

• Incorporating tolerance considerations and weld symbols correctly to make models manufacturing-ready
• Aligning drawing views and conventions with the client’s internal engineering practices

Ongoing, Evolving Scope

• Supporting a continuously evolving, ongoing engagement rather than a fixed one-time delivery

ALTEN Solutions

Systematic 2D Drawing Review

• Conducted structured review of existing AutoCAD drawings to extract accurate design data before 3D conversion

Multi-Size 3D Assembly Creation

• Built 3D data and full assemblies for Steam Drum, Fuel Feeding Screw, and Combustion Conveyor across multiple equipment sizes, ensuring design consistency across variants

Sub-Assembly Structuring

• Created organized sub-assemblies to simplify downstream manufacturing and documentation workflows

Manufacturing-Focused Detailing

• Applied tolerance considerations and added weld symbols directly into the 3D and 2D deliverables to meet manufacturing standards

Client-Aligned Practices

• Delivered additional drawing views and grouped sub-assemblies aligned to the client’s specific engineering and documentation practices

Continuous Delivery Model

• Sustained an ongoing 4-FTE engagement from Pune under a T&M model, supporting evolving scope over time

Business Benefits

Manufacturing-Ready Documentation

• Tolerance and weld symbol integration reduced manufacturing clarification cycles

Design Consistency Across Sizes

• Structured multi-size 3D assemblies ensured uniform quality across the equipment range

Faster Sourcing Support

• Enabled easier identification of purchased parts directly from vendor/website catalog data

Sustained Engineering Capacity

• Ongoing engagement model gave the client continuous access to dedicated 3D conversion capacity

Tools, Technologies & Expertise

Engineering & Design Tools

• Autodesk Inventor
• AutoCAD

Engineering Capabilities

• 2D-to-3D data conversion
• Sub-assembly & assembly modeling
• Manufacturing detailing (tolerances, weld symbols)

Domain Expertise

• Biofuel power generation equipment
• Plant module engineering (Steam Drum, Fuel Feeding Screw, Combustion Conveyor)

Where ALTEN Adds Value

• Converting legacy 2D documentation into structured, manufacturing-ready 3D data
• Maintaining consistency across multiple equipment size variants
• Aligning deliverables to client-specific engineering and drawing practices

Why ALTEN
ALTEN combines structured 2D-to-3D conversion expertise with manufacturing-focused detailing to help biofuel equipment manufacturers modernize their engineering documentation — consistently, and at scale, across their full equipment range.