# Instant Manufacturability Verdict for CAD

> Check CAD geometry in under 60 seconds for size, walls, cavities, access, tolerances, alloys, and interfaces before requesting a quote.

Canonical: https://mesh2metal.com/manufacturability

__Specifications__
| Verdict time        | Under 60 seconds Instant design review     |
| ------------------- | ------------------------------------------ |
| Maximum envelope    | 800 × 800 × 600 mm Larger parts on request |
| Machined tolerance  | ±0.1 mm Standard                           |
| Precision tolerance | ±0.05 mm Machined features                 |

All specs (5)

| Multi-material limit | Up to 3 alloys One part |
| -------------------- | ----------------------- |

Mesh2Metal’s instant manufacturability verdict checks whether a CAD part fits the 800 × 800 × 600 mm envelope, whether walls, features, cavities, access, tolerances, alloys, and multi-material interfaces are feasible, then returns a reason and a fix in under 60 seconds.

## What does the instant manufacturability verdict check?

The instant manufacturability verdict checks the full solid or mesh for practical constraints before a quote. Envelope review compares the part’s bounding box with 800 × 800 × 600 mm; larger geometry can be considered on request. Wall and feature review looks at thin walls, narrow ribs, small holes, deep pockets, sharp transitions, and other details that may not hold the selected design intent. Results distinguish as-built regions from surfaces planned for precision machining.

Cavity review checks enclosed volumes that cannot be inspected or cleared. A trapped internal volume can require an opening, changed access, or a different design. The verdict identifies the affected cavity instead of leaving the reason to guesswork.

Overhang and self-support review uses a generic rule: flag geometry that cannot be built near-net shape without redesign. The result names the region and recommends a geometry change. Feature-size results are design-specific; a single universal threshold can mislead across alloys, shapes, and finishes.

## How are critical features and tolerances checked?

Critical-feature review checks whether precision machining and inspection can reach bores, faces, datums, sealing lands, and mounting features. Access matters alongside nominal dimension: a requested size may be feasible on an exposed face but not on a concealed face. The verdict checks whether a measurement path exists for the critical feature and whether surrounding geometry leaves enough room for the planned finish. See the [quality](https://mesh2metal.com/quality) page for the inspection and certificate handoff.

Tolerance review compares requested values with stated capability. Machined features support ±0.1 mm standard and ±0.05 mm precision; as-built surfaces support ±0.5 mm. If a design calls for ±0.05 mm on a region that cannot be reached, the result recommends machining access or a less demanding callout. A clear tolerance plan keeps critical dimensions separate from surfaces that do not need the same treatment.

## How are alloys and multi-material interfaces evaluated?

Alloy suitability checks the selected family against wall and feature conditions, requested finish, critical tolerance, and intended service. Available families include [aluminum](https://mesh2metal.com/materials/aluminum), [copper](https://mesh2metal.com/materials/copper), [stainless steel](https://mesh2metal.com/materials/stainless-steel), [titanium](https://mesh2metal.com/materials/titanium), [nickel alloys](https://mesh2metal.com/materials/nickel-alloys), and [tool steel](https://mesh2metal.com/materials/tool-steel). A verdict can flag a combination that needs a different alloy family or a design revision.

Multi-material interface rules check up to 3 alloys in one part. Each interface is reviewed for enough area, clear boundaries, sensible feature placement, and inspection access. A boundary through a thin edge, enclosed cavity, or critical tolerance zone can produce a message even when each alloy is acceptable alone. The result may recommend moving the boundary, increasing interface area, or simplifying the design into separate parts.

## What do example verdict messages look like?

Example verdict messages use concrete callouts, but numeric values in the table are examples rather than universal thresholds. The selected alloy and finish can change the recommendation.

| Issue                                       | Why                                                                                   | Fix                                                                                 |
| ------------------------------------------- | ------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------- |
| Wall 0.8 mm at rib A                        | Example: below minimum as-built wall for the selected alloy                           | Thicken to ≥ 2 mm or mark as machined                                               |
| Bounding box 820 × 500 × 300 mm             | Exceeds the 800 × 800 × 600 mm envelope                                               | Reduce the bounding box, split the design, or request larger-part review            |
| Enclosed cavity with no inspection opening  | Cavity cannot be inspected or cleared                                                 | Add an inspection and clearing opening or redesign the cavity                       |
| Overhang at underside of bracket            | Geometry that cannot be built near-net shape without redesign                         | Redesign the underside with a self-supporting transition                            |
| Critical bore requires ±0.05 mm             | Example: precision tolerance needs machining access and a verifiable measurement path | Add machining access for that feature, or relax the callout to the as-built ±0.5 mm |
| Aluminum-to-titanium interface at thin edge | Interface area is too small for a stable multi-material transition                    | Increase interface area or move the boundary away from the critical feature         |

## How do I use a verdict in design iteration?

Design iteration starts with a browser-based check of STL, STEP/STP, 3MF, or OBJ files; the files stay on the visitor’s device. The verdict arrives in under 60 seconds and states whether the design is ready to continue or needs a specific correction. If a design cannot be made as specified, Mesh2Metal says exactly why and how to fix it. Start with [how it works](https://mesh2metal.com/how-it-works), then move to a [quote](https://mesh2metal.com/quote) when the geometry and requirements are ready.

API and MCP access for fast design iteration is available through the waitlist; accounts open soon. Planned access is free up to approximately 100 checks per day per user. The [API](https://mesh2metal.com/api) and [MCP](https://mesh2metal.com/mcp) paths are suited to teams that want a manufacturability result inside an existing review loop rather than a manual check for every revision.

## What happens after a design is flagged?

Fix recommendations are actionable rather than generic. A wall message points to the rib or face that needs attention. A cavity message identifies the missing inspection or clearing path. An access message marks the critical feature that needs room for machining and inspection. An alloy or interface message explains whether the boundary, family, or feature placement is the likely constraint.

After a correction, run the check again and compare the new result with the original design intent. Keep critical dimensions, finish requirements, alloy selection, and multi-material boundaries explicit in the quote request. The [multi-material](https://mesh2metal.com/multi-material) and [quality](https://mesh2metal.com/quality) pages provide the next level of detail, while the [FAQ](https://mesh2metal.com/faq) covers common account and review questions.

## Questions

Which CAD file formats can I check?

STL, STEP/STP, 3MF, and OBJ files are analyzed locally in the browser, so the source file stays on your device.

Does the verdict change my CAD file?

No. The check reports findings and recommendations without altering the source model.

Can I use the result in an existing design workflow?

API and MCP access is available through the waitlist for fast design iteration; accounts open soon.

How should I handle export-controlled data?

Please don't send us export-controlled (ITAR/EAR) technical data until we have set up a compliant path with you — contact us first.

Sources (4)

1. \[1\] [ Geometric dimensioning and tolerancing ](https://en.wikipedia.org/wiki/Geometric%5Fdimensioning%5Fand%5Ftolerancing) , Wikipedia
2. \[2\] [ Machining ](https://en.wikipedia.org/wiki/Machining) , Wikipedia
3. \[3\] [ Additive manufacturing ](https://en.wikipedia.org/wiki/3D%5Fprinting) , Wikipedia
4. \[4\] [ Porosity ](https://en.wikipedia.org/wiki/Porosity) , Wikipedia

## Check your part now.

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