Behind the Rigs

Behind bespoke test rig design

Behind the Rigs explores the engineering thinking behind bespoke test rigs and specialist machinery. In many cases, off-the-shelf equipment cannot meet modern R&D demands. As engineering challenges grow more complex, custom solutions play a more important role. In 2025, this trend became especially clear across energy, aerospace and advanced materials projects.

Why Bespoke Test Rigs Matter

Standard test equipment works well for common applications. However, research and development rarely fits within standard limits. New materials, novel geometries and emerging technologies often require unique test conditions.
For this reason, bespoke test rigs are essential. They allow engineers to control loads, alignment and motion with precision. As a result, teams can generate reliable and repeatable data.

From Requirement to Concept

Every bespoke rig starts with a clear technical requirement. First, engineers define what needs testing. Next, they identify operating conditions and accuracy targets.
At this stage, collaboration between engineers and researchers is vital. Early design decisions influence safety, data quality and long-term usability. Therefore, engineers consider mechanical layout, load paths and access for instrumentation from the outset.

Designing for Accuracy and Repeatability

Accuracy underpins effective testing. Even small misalignments or structural deflections can affect results. Consequently, mechanical design analysis and alignment strategies form part of the initial design process.
Industry standards also reinforce this need. In particular, guidance from the International Organization for Standardization (ISO) emphasises accuracy and repeatability when test results support certification or scale-up decisions.

Manufacture, Assembly and Validation

Once engineers finalise the design, manufacture and assembly follow. During this phase, tolerances, material choice and build quality directly affect performance.
Validation then confirms that the rig behaves as intended. For example, teams may apply calibration loads or reference measurements before testing begins. In aerospace and energy projects, this step remains critical. The Royal Academy of Engineering continues to highlight the importance of rigorous testing to support safe and reliable innovation.

How CNR Approaches Bespoke Test Rigs

At CNR, bespoke test rigs form a core part of our engineering work. Throughout 2025, we supported projects across green energy, future energy systems and aerospace. We delivered tailored rig designs to meet specific research needs.
By combining mechanical design, structural analysis and precision alignment, we help clients reduce development risk. At the same time, we ensure test results remain robust and repeatable.