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engineeering 202
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| Term | Definition |
|---|---|
| The six standard views | left side, right side, Top, Bottom, rear, front |
| three necessary views | Front, Right, Top |
| Tolerances | Indicate how much the final geometry of a manufactured part may deviate from the ideal geometry in the drawing and still be acceptable. |
| Call-Outs & Annotations | Specify the parameters of standard operations such as drilled holes, tapped holes, counter bores, countersinks, surface finishes, welded, joints. |
| Dimensions | Specify ideal measurements (usually in inches or millimeters) of various features and geometry of your parts & assemblies. |
| Depth | Specifying the depth of a drill, ream, or tapping operation. |
| Countersink | For sinking the head of a flathead screw below the surface |
| Spotface | Creating a flat “patch” for a screw or other part on an otherwise rough surface. |
| Ordinate | dimensioning from a single baseline offers superior clarity |
| Mating Dimensions | Specify the position of the features relative to one another |