Find fit risks in your 3D assembly with StackUp 3D. Explore clearances, interference and tolerance choices in desktop software built for mechanical engineers.
Mouse / XY section / Two wheel-to-housing gaps
+0.375 → −0.049 mmtarget reduction in
tolerance-analysis time
We’ve spoken to hundreds of engineering teams about tolerance analysis. Here’s what we learned.
Hours of tedious setup for routine answers.
Spreadsheet stackups depend on who builds them.
Deadlines hit. Checks get skipped.
With spreadsheets: Weeks spent setting up and running studies
With StackUp 3D: 80% less analysis timeOur time-reduction target
With spreadsheets: Engineering hours lost to brittle spreadsheet workflows
With StackUp 3D: Lower analysis costsPut engineering time into design decisions
With spreadsheets: Fit problems found after design freeze
With StackUp 3D: Get ahead of reworkFind fit risks while changes are practical
With spreadsheets: Late changes that push back launch
With StackUp 3D: Protect the launch scheduleResolve fit questions before committing to tooling
The 80% reduction is a target. Measure the savings on your own assemblies.
Estimate your savingsGeometry and math drive the calculations. The same study inputs produce the same results.
Work with assembly geometry, tolerance inputs and measured results your team can inspect, compare and build on.
Explore three fit questions, then inspect the inputs and results.
Illustrative distance field; part positions stay nominal.
A gap in nominal CAD can disappear with variation. Zoom into the wheel-to-housing interface to see the assumed tolerances consume the clearance.
Find the interface that needs attention.
Illustrative distance field; part positions stay nominal.
Inspect the studyThe washer spans an adapter and a sprocket. Compare their tolerance envelopes to see how locating inputs affect the local gap.
Identify the locating control to investigate.
Illustrative rigid-pose comparison.
Inspect the studyCrossmember → support connectionFollow the locator change
Tightening the center-locator input changes the minimum gap from −0.400 mm to +0.100 mm in this one-axis study.
Bring a specific tolerance change to the design review.
Illustrative bounds for one connection and one axis.
Inspect the studySee what changed at each interface.
Inspect the studiesCompare the inputs, results and measurement locations.
Showing mouse study evidence.
Change the surface input on both parts while keeping their positions fixed.
| All values in mm | Initial | Revised |
|---|---|---|
| Surface tolerance input, each part | 0.000 | 0.300 |
| RSS-adjusted gap at the selected witness | +0.375 | −0.049 |
Nominal gap at the selected witness: 0.375 mm.
The assumed variation consumes the local gap. Check the locating relationships before setting production tolerances.
Measure gaps between selected parts in the assembly.
See where tolerance variation can cause interference.
Compare inputs to focus the next design change.
Start with the early-design analyses you already perform. Estimate the engineering time you could release and the value of that capacity for your team.
If time constraints prevent analysis today, bring those missed checks into the evaluation. Their value is in the design decisions they inform; it is not counted as savings from work you never performed.
Enter the portion of your current annual TA workload you would use StackUp 3D for.
Engineering hours released / year
A STEP assembly, a fit question and tolerance inputs to explore. You can investigate while the design is still evolving.
StackUp 3D supports early design decisions. Detailed GD&T and release-stage verification remain part of your engineering process.
Deterministic geometry and mathematical calculations. The same study inputs produce the same results, without a trained model.
StackUp 3D is a desktop application for STEP assemblies. Deployment, training and integration requirements are scoped with your team.
Start with a demo and a discussion of your fit question. A hands-on evaluation on your own assembly establishes the technical scope and business value before an annual enterprise license.
Start with a demo. Then choose a real assembly for a hands-on evaluation, with success criteria agreed before the work begins.
Tell us about your fit question. We’ll follow up to arrange a demo.
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