Tolerance analysis software: Make Stack-Ups and Optimization a Part of Product Design
The RD8 Tolerance Stack-Up and Optimization Software helps mechanical engineering teams bring tolerance analysis into daily development workflows to handle variation.
Purpose‑built for mechanical designers to handle simple and complex assemblies. RD8 delivers predictable, traceable, and repeatable calculations without the limits of spreadsheets or ad‑hoc processes.
Dimensional management by tolerance analysis, simulation of variation and optimization of CAD geometry is the key for functional performance and product quality.
Trusted by engineering teams building high‑performance mechanical products
Keeping Tolerance Stack-Up Work Alive Sounds Good in Theory - but in Practice, it often Falls Apart
Your team wants a proper tolerance stack-up process, but it’s difficult to maintain and nearly impossible to scale.
Too Late.
Many workflows rely on heavy analysis work which happens too late.
Purpose-Built Tolerance Analysis Software for Mechanical Engineers
Built specifically for mechanical engineers and designers who strives to make Robust Designs (with fewer requirements) rather than spending time on theoretical tolerance math that does only tighten tolerance and is not driving simplicity.
Standard CAD tools, spreadsheets and manual calculations often introduce unnecessary complexity, limited transparency and results that are difficult to validate. RD8 is specifically designed for mechanical engineering workflows where clarity, accuracy and production-readiness are essential.
Make Tolerance Analysis a Natural Part of Engineering
Seamlessly integrate tolerance stack-up analysis into the product development process and avoid late-stage surprises with early, continuous insight.
Automatic Stack Up Detection
The RD8 Software automatically detects and analyses tolerance stack ups in your mechanical designs.
Simplify Complex 3D Problems
Complicated 3D tolerance stacks are simplified to 1D or 2D scenarios by design optimization.
Keep Full Overview
All parameters and calculations stay connected and transparent. Approve designs with confidence supported by complete linkage.
Tolerance analysis in less than 20 minutes
1. Import
Easily upload your CAD model(s) to RD8 (.STEP files).
The iteration feature keeps the project up to date with the latest CAD model. (Can also be used up-front without a CAD model.)
2. Setup
Identify and setup the tolerance stack with our easy-to-use features.
Worlds first path finder.
1D, 2D, 3D, non-linear stacks.
Built-in3D viewer and infinity canvas.
3. Analyze
Detail and document the tolerance stack with ease. Forecast and analyze results.
Worst Case, RSS, Statistical and Monte Carlo simulations in seconds
Tolerance Stack Up Made Easy
1. Overview
Keep an overview of all calculations in a project.
Our ‘what if’ feature help to predict the effect of changes.
2. Collaborate
Share, sync, update seamlessly.
Cloud based, auto-save, no check-in/check-out, multi-user access.
3. Optimize
Improve predictability through redesign of constraints and geometry of interfaces.
The RD8 proprietary – world leading – mechanical interface engine will “X-ray” the design and reveal optimization points.
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Two ways to unlock value with RD8 Software
RD8 supports both traditional expert-driven workflows and modern, scalable team workflows. Choose the approach that fits your organization today - and evolve as your engineering process matures.
Centralized Expert Workflow
For the 1-3 specialists who handle tolerance stacks today.
Scaled Team Workflow
For organizations ready to democratize tolerance stack analysis.
Complete all-in-one Tolerance Analysis software
All features
Ready to bring structure and predictability to your tolerance work?
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