Faster tolerance analysis. Smarter optimization.
The only Tolerance Software focused on optimization rather than just analysis so that you gain speed and quality by simplification.
Setup tolerances automatically, validate results with built‑in sanity checks, and handle complex calculation sets without the complexity.
RD8 Software is developed on intel from +800 optimized mechanical designs.
ZERO ERRORS - no wrong assumptions...
...the RD8 Path Finder builds and sanity checks your paths.
+50% reduction of costly tolerances...
...RD8 scans your CAD with instant optimization points.
6X FASTER than complex spreadsheets...
...and other solutions. Smart and easy to use.
95% of profit is based on the 'Design Quality' - not manufacturing.
Trusted by engineering teams building high‑performance mechanical products
Automated Tolerance Setup
and Sanity Checker
Automated Set Up
The RD8 Path Finder identifies the tolerance path(s) and makes it quick and easy to setup stacks.
Sanity Checker
Helps you identify if calculations are wrong or overcomplicated.
Analyze Faster.
Optimize Smarter.
Get Monte Carlo Results in seconds - not hours
Monte Carlo Simulations, Sensitivity Analysis, Draft Mode, Tolerance Lookup, and much more.
Interface Optimization Engine
RD8 automatically x-rays and evaluate your CAD assembly to reveal simplification options.
Complex Calculations Sets
– Made Easy.
- Always up-to-date overview of all calculations in a project.
- Built for collaboration
- Full documentation history and traceability
- 'What if' analysis
- Parameter database
...and much more
Takes 3 min - 15 Questions - Get Instant Results
RD8 Webinars
Check out our next live Webinar to take a closer look at our products, features, and more!
Next on the menu:
RD8 Software Demo: Catch Assembly Problems in Week 2 - Not in month 8
Tolerance analysis Software for Faster, Better Mechanical Designs
+50% of Tolerance
Stacks are of Poor Quality
We see approximately 5 overconstraints per mechanical interface causing poor quality of impacted tolerance stacks. These designs can be dramatically improved by use of RD8.
Furthermore RD8 can be used very early in the design process - yielding design confidence from day 1 where other systems rely on a complete CAD model.
+50% Reduction
of Critical Tolerances
In more than 50% of cases we see a potential +50% reduction of GD&T modifiers, number dimensions, and relaxation of tight tolerances.
No other tools are able to spot overconstraints and highlight them based on the actual CAD geometry instead of manual constraints.
6X Faster
than Complex Tools
We see customers do analysis in 30 min, which normally takes 180 minutes in complex software applications.
We see a 3-10X increase in speed compared to Excel depending on stack-complexity. In some cases a +100X increase if you include lost work in Excel.
Tolerance analysis with focus on optimization - not just documentation.
Assisted Setup
Import CAD model and let RD8 map out all relations between parts.
Set-up and document the stack with the World's First Path Finder.
Let RD8 sanity check if your stack is without errors.
Analyse and Optimise
Detail and document your analysis - 1D, 2D, 3D, or non-linear stacks - based on parameters lists, smart lookups, and GD&T/GPS notation.
Analyse your calculations by 'Worst Case', RSS, 'Statistical' and 'Monte Carlo Simulations'. Perform sensitivity analysis, and test different scenarios.
Checks for overconstraints and geometry optimization points by RD8 Interface Analysis
Manage all your calculations from a user-friendly interface where everything is up-to-date and documented.
Test ideas or scenarios with 'What if'-analysis.
Trace progress throughout the development with collaboration- and iteration features.
Complexity Made Easy
Purpose-Built Tolerance analysis software for mechanical Engineers
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.
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Replace Excel-Based Tolerance Analysis with a Scalable Tolerance Analysis Tools
While Excel is often used for tolerance analysis, it introduces risk, inefficiency, and scaling issues as products and assemblies grow more complex.
While spreadsheets are very flexible - they can also be the root cause misaligned work.
Advantages of using a dedicated tolerance analysis tool:
Skip tedious worfklows in-and-out of apps. Screenshot in CAD, illustration in Power Point, stack-up calculations in Excel. Where is the mother illustration? Where is the matching assembly file? Which is the latest?
Tired of spreadsheets that break, freeze/white screen, become inconsistent, are hard to update, cannot support multi-user access when macros are present, broken links, broken references, malfunction when calculations cells are deleted, sheet is broken if a line is inserted... the list goes on...
Tired of Excels limitations? Not possible to do assymetric tolerences, Monte Carlo Simulations run slow, not able to run sensitivity studies, cannot see who did the last edit, ...
Explore core capabilities of RD8 Tolerance Analysis Software
RD8 tolerance analysis software provides automatic stack-up detection and analysis, parameter sync and easy collaboration to help mechanical engineers create better mechanical designs in shorter time.
Easy to Use - Everyday
Keep the Overview
Smart Assisted Workflows
Multi-user Collaboration and Version Control
Smart Quality Checks
From 3D Problems to Simplified 2D Stacks
Remove the Most Expensive GD&T/GPS Modifiers
Designed for engineers working on Must-not-fail products
Robust engineering software tailored for design teams with a focus on ‘must-not-fail product’ in high volume production in competitive sectors.
Based on Robust Design philosophy - to achieve Quality by Design (and not only relying on Quality by Production). Making clever choises up-front impacts 95% of the cost of the product.
Tolerance Analysis Software for different engineering environments
RD8 is designed to cater and adapt to different engineering environments, product complexities, and organizational maturity levels.
Tolerance Analysis for Industrial- and Consumer Products
Suited for companies with high volume, quality demands and a constant focus on cost and new innovation.
Tolerance Analysis for Automotive
Coordination between many stakeholders. OEMs, Tier 1, Tier 2, Tier 3.
Competion is fearce.
High requirements to be most competivite in three dimensions: quality, delivery and cost.
Tolerance Analysis for Life Science: Drug Delivery Devices/Autoinjectors and Medical Devices
Where failure is not an option.
Quality is key.
Documentation and design history is mandatory.
Failures are not an option.
Why engineers move from Excel to RD8 Tolerance Analysis software
Enginners choose RD8 due to simplicity and yet it's very advanced functions.
It is the natural step from Excel - bringing all the flexibiilty from Excel: quick edits and tabular form, thus storing, managing and maintaining it in secure, professional and limitless environment.
What can engineering teams achieve with RD8 Tolerance Analysis Software?
Fewer Quality Issues
Improved yield of production, less NC's, less recalls, less warrenty cases.
Faster Developement Cycles
Increased confidrence in desigs. Fewer design loops.
Rock Solid Documention
Captured design desicions and engineering rationales
Team Spirit
Free teams for uncesseary hassle and let them focus their energy on product improcing activities instead of an "updating-nighmare".
Part Cost Reductions
Reduction of part cost by easing technical requirements to the parts (by design)
Total Cost Reduction
Reduction of down stream effects: warrenty costs, assembly cost, supplier selections, QA, reputation cost...
How does RD8 compare to other Tolerance Analysis Software solutions?
RD8 is designed for the many—not the few. Where traditional tolerance analysis tools often require deep specialization, long training cycles, or highly manual workflows, RD8 focuses on making rigorous analysis accessible to every engineer from day 1 of the project. The result is a tool that stays technically precise while remaining fast, intuitive, and usable in everyday development work.
Below is a high‑level view of what sets RD8 apart.
Made to be used from Day 1 of a Project
Automatic Set-up of Stacks
Tolerance Stack Optimization
3D Stack Simplification Features
Quality Check of Ambigious Stacks
Unique Calculation and Product Overview
Interlinked Calculations and Relations
Built for Collaboration
Design Notes and Design Reviews
Built for Speed
Tolerance Analysis Software Supported By Engineering consultancy
RD8 Software is built on the practical experience of engineers who have spent years perfecting tolerance analysis in real projects, ensuring the software reflects how experts actually work.
During onboarding, the same consultants guide your team through models, workflows, and best practices, so you gain a solid and confident foundation from day one. This close link between expert consultancy and software gives users both a proven tool and the guidance needed to apply it effectively.
HOW TO CHOOSE THE RIGHT TOLERANCE ANALYSIS SOFTWARE
To choose the right Tolerance Analysis Software for your team, follow the steps below.
HOW TO CHOOSE THE RIGHT TOLERANCE ANALYSIS SOFTWARE
To choose the right Tolerance Analysis Software for your team, follow the steps shown here.
1. Evaluate Your Own Readiness
2. Plan the Use Case
3. Engineering Adoption and Support
4. Long-Term Scalability
Explore features of the RD8 Software
Assisted Setup
Analyse and Optimise
Complexity Made Easy
Preview Parameter Changes
Frequently asked questions about RD8 software
Below you will find frequently asked questions about Tolerance Analysis Software. If you have any further questions about the RD8 Software and how it can work for you, reach out to us.
Why is Tolerance Analysis Critical in Mechanical Design?
Tolerance analysis is essential for ensuring that parts fit together and function as intended.
It impacts:
• Product functionality - ensuring that the product always work, in all conditions, also when an assembly consists of parts all pushed to their limits of their tolerances
• Cost efficiency - Reduce need for tight tolerances, inspection, reduce scrap, expensive redesigns
• Reliability and quality - Deliver products that meet performance standards consistently
Not performing a proper tolerance stack-up analysis can lead to unplesant surprices, costly to fix downstream. By understanding and applying tolerance stack-up analysis, you can optimize design, improve manufacturability and maintain quality control throughout the product lifecycle.
This task is often postponed late into the design process - then revealing issues that can only be solved by making more precise parts (which is costly, more time consuming, harder to source or keep in control).
Can RD8 Softrware consider friction, pressure, forces, springs?
Yes. RD8 Software can handle all calculations as long as you have a mathematical expression.
Here's a couple of examples of:
- how to do non-linear calculations (how to calculate pressure in an espresso machine): Tutorial: How to setup a non-linear transfer function - YouTube
- how to calculate dosing accuracy: Episode 4: Parameter Sensitivity and Optimization | How to setup a tolerance stack
Springs, seals, forces can be calculated as well.
Does RD8 Support GD&T-Based Tolerance Stack-Up Analysis?
Yes. RD8 supports GPS and GD&T notation.
How Long Does It Take to Implement RD8 Software?
Typically 1 month.
Onboarding consist of 2x4h online class room training, supported by online training material.
After class room training users are supported for approximately 30 days in 'hypercare' to assist the user to apply the software to their everyday tasks.
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