✓ One-time purchase ✓ Lifetime license ✓ Windows desktop application
StackLogic Professional
Stop Building Tolerance Loops in PowerPoint and Excel.
StackLogic is a tolerance stack-up analysis tool built by mechanical engineers for mechanical engineers.
Create visual tolerance loops directly from assembly screenshots, CAD cross-sections, engineering drawings, and design review images. Define your loop path, enter dimensional contributors, and instantly calculate nominal, worst-case, and RSS stack-up results—all within a single application.
No more switching between PowerPoint for loop diagrams and Excel for calculations.
Key Features
Visual tolerance loop creation
Screenshot and drawing-based workflow
Worst Case stack-up analysis
RSS (Root Sum Square) analysis
Automatic max/min calculations
Contributor and sensitivity tracking
Engineering report generation
Simple and intuitive interface
Designed specifically for mechanical assemblies
Ideal For
Mechanical Engineers
Design Engineers
Product Development Engineers
Aerospace Engineers
Manufacturing Engineers
Robotics Engineers
Medical Device Engineers
Tolerance Analysis and GD&T Practitioners
Typical Workflow
1
Import
Import a CAD screenshot, cross-section, or engineering drawing.
2
Define the loop
Select the tolerance path through the assembly.
3
Enter contributors
Add dimensional contributors and tolerances.
4
Calculate
Generate nominal, Worst Case, and RSS results instantly.
5
Export
Export results for design reviews, documentation, and manufacturing.
Free Version
The free version includes up to 5 tolerance stack entries, allowing engineers to evaluate the workflow before upgrading.