GDT:Location Overview
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| Symbol | Location Overview |
|---|---|
| Type | Location |
| Category | Location |
| Standard | ASME Y14.5 |
| Author | Admin |
| Datums | Required for location controls |
| Modifiers | Varies by control and feature type |
| Tolerance zone | Varies by control |
| Image | |
| Common mistakes | Missing basic dimensions; missing datum references; using the wrong control for the feature type |
| Related |
Summary
Location controls define where features must be relative to datums.
Scope
Use location controls to establish true position or coaxiality relative to a datum reference frame.
Controls in this category
- GDT:Position
- GDT:Position Composite FCF
- GDT:Position Multi-Single Segment FCF
- GDT:Concentricity
- GDT:Symmetry
When to use it
Use location controls when the feature location drives fit, assembly, or function.
Common mistakes
- Missing basic dimensions for true position.
- Omitting datum references.
- Mixing location and orientation controls without clear intent.