Tolerance Stackup Calculator

indicative

Design standard

Calculation standard

Sets screening knobs for Indicative practice — not product type or catalog geometry

Tolerance, fits, cost, and toolpath screening.

Target SF 1.50

Reference standards

ISO 286ASME Y14.5

Validate — verify what you entered

Auto-design runs a solver-backed sizing search, applies the best candidate, then runs the full validation check.

Tolerance stack-up

From drawing package to auditable stack

Upload a ZIP with BOM.xlsx and PDFs, pick contributors in order, confirm the chain, then run verified WC / RSS / Monte Carlo.

Study name

Drop your drawing package here

ZIP with required BOM.xlsx + PDFs, or a single PDF. Max 10 MB per drawing.

Continue workflow

Typical next steps after Tolerance Stackup

Design help & referenceShow

Reference documentation

Standards, catalogs, and technical write-ups relevant to this module.

Candidate strategy

Typical Auto-design directions for tolerance stackup.

Option	Basis	Pass	Tradeoff
Loose tolerance	Low cost	Check function	Higher variation
Functional tolerance	Assembly target	Pass expected	Balanced
Precision tolerance	High yield	High confidence	Higher cost