Geometric dimensioning and tolerancing (GD&T) workbench
Interpret an existing feature control frame, review a candidate control from design intent, and learn through guided lessons and practice. In Interpret, deterministic rules establish callout structure before AI explains the result.
Built for engineering review. DatumPilot does not replace ASME Y14.5, qualified engineering judgment, drawing-owner decisions, or inspection planning.
Free plan · no credit card · commercial use included.
Workspace
Move from single-callout interpretation to candidate-control review and standards-grounded learning without leaving the same workspace.
Build feature control frames (FCFs), including composite and multi-segment controls. Get a plain-language and technical interpretation with inspection implications, confidence, warnings, and ASME Y14.5-2018 references where available.
Interpret a calloutDefine the feature, functional requirement, datum strategy, and output target. DatumPilot proposes a candidate FCF and may offer alternatives to consider, then explains the control strategy, datum logic, material condition, and MBD/PMI guidance for engineering review.
Recommend a calloutReinforce GD&T concepts with lessons, worked examples, scored knowledge checks, “Build it” practice, concept browsing, mastery tracking, and spaced review.
Start learningHow it works
The workflow separates callout facts from generated explanation.
Build feature control frames, including composite and multi-segment controls, in a guided editor that checks the control, tolerances, modifiers, and datum references before interpretation.
A deterministic rules engine establishes the callout structure and checks key facts before any AI-generated explanation is accepted.
Read the result in plain language and engineering terms, with inspection implications, confidence, warnings, missing context, and references where available.
Use cases
Use DatumPilot as a focused review aid for individual feature control frames and candidate controls, while keeping final engineering and inspection decisions with qualified reviewers.
Review a candidate control from functional requirements, feature relationships, and datum strategy before the drawing owner makes a final decision.
Interpret an individual callout, surface missing context, and use the explanation to prepare focused questions for design and inspection review.
Build knowledge through lessons, examples, knowledge checks, feature control frame practice, concept reference, and review.
Pricing
Start on Free. Move to Individual for higher monthly limits. Choose Pro for the complete learning track, highest limits, and PDF interpretation reports. Interpret and Recommend share one monthly allowance; copyable reports are included on every plan. Paid plans use Stripe Checkout after sign-in.
Explore the core workflows
$0forever
No credit card required
Get started freeBest for regular use
$15/ month
billed monthly
Choose IndividualBest for professionals
$39/ month
billed monthly
Go ProDatumPilot supports single-callout interpretation, candidate recommendations, and learning. It does not replace ASME Y14.5, qualified engineering judgment, drawing-owner decisions, or inspection planning. Verify the result against the full drawing, applicable standards, and your organization's review process.
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FAQ
Interpret helps you build a single feature control frame, checks its structure, and explains the callout in technical and plain language with confidence, warnings, and references where available.
No. DatumPilot provides engineering decision support. A qualified reviewer and the drawing owner remain responsible for the final requirement and its application.
No. DatumPilot works with individual feature control frames and design-intent inputs. It does not perform a complete drawing review or approve an inspection plan.
DatumPilot provides ASME Y14.5-2018 references where available to support review. It is not affiliated with ASME and does not replace access to the standard.