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

Typical Workflow

1. Import a CAD screenshot, cross-section, or engineering drawing.

2. Define the tolerance loop by selecting the path through the assembly.

3. Enter dimensional contributors and tolerances.

4. Instantly generate stack-up calculations.

5. Export results for design reviews, documentation, and manufacturing.

Ideal For

• Mechanical Engineers

• Design Engineers

• Product Development Engineers

• Aerospace Engineers

• Manufacturing Engineers

• Robotics Engineers

• Medical Device Engineers

• Tolerance Analysis and GD&T Practitioners

Free Version

The free version includes up to 5 tolerance stack entries, allowing engineers to evaluate the workflow before upgrading.

Professional Version

The Professional Version removes entry limitations and unlocks the full capability of StackLogic for production engineering work.

Spend less time building spreadsheets and more time designing products.