Manufacturing Standards | Xometry
Our Manufacturing Standards
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Workmanship Standards
Orders with Xometry will meet the minimum workmanship standards outlined below (as applicable to the process). If your project requires a level of workmanship that goes beyond the standards listed below, please clearly list the requirement in your engineering drawings, purchase orders, or specifications.
Finished Surfaces Cosmetics
- Paint coverage on surfaces will be uniform, including adjacent materials of assemblies.
- Finished surfaces will be free of defects, including chips, scrapes, or other damage.
Mill Steps, Tooling, and Chatter
- Tool marks on as-milled surfaces will be free of defects, including burrs, chatter, tool gauges, and will meet surface roughness specifications.
- Indicated critical surfaces will be free of mill steps and marks across the entire surface.
Chips, Burrs, and Sharp Edges
- All exposed edges will be free of burrs, sharp edges, and metal slivers.*
- *Parts made with Sheet Cutting are not deburred unless specified through a selected finish.
Foreign Object Debris (FOD)
- Surfaces will be free of cutting fluid, metal chips, foreign objects, and other debris.
Threads
- Threads will be fully formed and cut to specified size and class indicated in provided drawings.
- Threads will be free of defects, notable damage, and contamination.
Plated Surfaces
- Plated surfaces will be uniform, including adjacent surfaces of assemblies.
- Plated surfaces will be free of machining marks, scratches, pits, protrusions, or visible bare metal.
Weld Joints
- Weld joints are performed as indicated in the customer-provided drawing.
- Welds without specific requirements are cleaned to remove slag or other surface contamination.
- Weld joints will not be painted until the welding has been completed and the weld has passed inspection.
Countersinks
- Countersinks shall be round and made to print specifications and allow the proper designed fit with the mating screw.
Painted Surfaces
- Painted surfaces shall be consistent and continuous in the finish.
CNC Orientation and Form General Tolerances for Metals
| Part Length | Orientation and Form Tolerance (inch) | Angularity Tolerance (degree) |
|---|---|---|
| Part Length 0 to 12" |
Orientation and Form Tolerance (inch) .005" |
Angularity Tolerance (degree) 0.5° |
| Part Length 12" to 24" |
Orientation and Form Tolerance (inch) .010" |
Angularity Tolerance (degree) 0.5° |
| Part Length 24" - 36" |
Orientation and Form Tolerance (inch) 1/64" (.016") |
Angularity Tolerance (degree) 1° |
| Part Length 36" - 60" |
Orientation and Form Tolerance (inch) 1/32" (.031") |
Angularity Tolerance (degree) 1° |
| Part Length Over 60" |
Orientation and Form Tolerance (inch) 1/16" (.063") |
Angularity Tolerance (degree) 1° |
Standard Plastic Extrusion Tolerances By Feature Size
| Size of Dimension | Standard Tolerance * |
|---|---|
| Size of Dimension < .125” |
Standard Tolerance * ± .010” |
| Size of Dimension .125” - .500” |
Standard Tolerance * ± .020” |
| Size of Dimension .500” - 1.00” |
Standard Tolerance * ± .030” |
| Size of Dimension 1.00” - 1.50” |
Standard Tolerance * ± .035” |
| Size of Dimension 1.50” - 2.00” |
Standard Tolerance * ± .040” |
| Size of Dimension 2.00” - 3.00” |
Standard Tolerance * ± .045” |
| Size of Dimension 3.00” - 4.00” |
Standard Tolerance * ± .065” |
| Size of Dimension 4.00” - 5.00” |
Standard Tolerance * ± .085” |
| Size of Dimension 5.00” - 7.00” |
Standard Tolerance * ± .100” |
| Size of Dimension 7.00” - 10.00” |
Standard Tolerance * ± .125” |