Robust Design Product Review - Optimize the robustness I RD8

Robust Design Reviews


Robust Design Product Reviews - Quantify the Robustness of a Mechanical Design

Get rid of the gut feeling.
We provide an objective measure of product designs


Robust design product review basis: 3D CAD file

The RD8 index makes it possible to give an objective measurement of good design. For example, a RD8 product review will measure the health of a given mechanical design by assessing the CAD model of the product and hereby the robustness of the mechanism design.


The higher the score, the more complex a design. The aim is, in the first place, to know the robustness of the design. Like a weight loss – you need to know your weight to know how much weight you have lost.


The RD8 Index is an objective measure to track your performance and trim your product to an ideal state.


The RD8 Index can be used as a guiding metric or R&D KPI. Unlock the full potential of the metric by linking it with BIG data, data from ERP systems, MES, etc.

The product review is based on 8 robustness disciplines illustrated below

RD8 Robust Design Disciplines

In RD8 Robust Engineering System (RES) and RD8 Index – we redefine robust design – by coverage of 8 crucial disciplines of mechanical design – while keeping the design process and outcome as simple and structured as possible.

The 8 disciplines of a robust design review are:

Kinematics – The foundation. Kinematic design on the system and detailed level. Meaning kinematic design of product architecture and robust mechanism design in the detail.

Functions – Product function is vital! Ensure healthy concepts with low sensitivity – high robustness.

Couplings – Reduce complexity! Remove dependencies by decoupling.

Tolerances – Ensure short tolerance chains and feasible tolerances (to match process capabilities)

Structure – Ensuring match between requirements, function, cost, and mechanical properties.

Materials – Ensure the right selection of materials – their complexity and link to adjacent components.

DFM – Ensure optimized manufacturability of parts

DFA – Ensure ease of assembly and link to product design

Example of RD8 Index breakdown on disciplines.

What then?

Implementation of new solutions

Product review typically leads to significant potentials in the greener, simpler, faster, smarter categories. Therefore, product reviews are always accommodated with guiding solutions of robust mechanism design – to enable the potentials, go to the services:


Review time? Any time!

Products reviews can occur from concept development to that a product has been on the market for many years.

  • Products can be reviewed already from the concept stage to ensure that the development is built on a solid, robust foundation.
  • Our analysis primarily takes offset in a 3D CAD model but can also be done even before by review of indented kinematic architecture.
Illustration of product tracking by RD8 Index

Typical reasons for a robust product review

Ensure robust mechanism and platform design.


Solid foundation

Key for a good start – ensure that the product is build on a healthy concept from the project start and minimize risk for project detours


Ready for ramp-up

Ensure product is ready for product launch without any surprises. A robust design enables easy sourcing, minimum requirements for assembly and minimizes risk of defects during production ramp-up and market entry.


Product upgrade

Identify potentials for for sustainability, quality, cost or performance. Refuel product and production by robust design optimization of mechanisms and product architecture. 


Product Review Types

RD8 offers different depths of product reviews. Often a look under the hood can quickly reveal potentials. For a review of different product categories, it is recommended to choose the solid or light. However, for a ramp-up of a critical new product, it is recommended to go with a full review.

The RD8 product review assesses the different robust design disciplines. However, a 360 review is more extensive than a light review.



  • NDA
  • Data sharing (CAD, 2D drawings, etc.)
  • Product introduction meeting


  • RD8 review of your product
  • Baseline setting
  • Ideal state setting


  • Presentation of findings
  • RD8 Index score
  • Design recommendations
  • Review report

Product review quotes depend on product complexity and depth of review.

~3 weeks

Per products type
Kinematics: Architecture review
Kinematics: 15 x Interface reviews
Couplings: Screening

~8 weeks

Per products type
Kinematics: Architecture review
Kinematics: Full Interface reviews
Couplings: Full review
Functions: primary functions review
Functions: monte carlo simulations
Tolerances: full drawings review
Materials: Full material screening
DFM: DFM review of all parts
Structure: Documentation of critical compoenents

Robustness Philosophy

Axiomatic design & classic robust design on top of a foundation of kinematic design.

Design for sensitivity, complexity reduction and decoupling – based on a kinematic design foundation.

RD8 Robust Design Philosophy