Mechanical designers work with engineers using computer design software to create from sketches and even field work, technical drawings for equipment, foundations, and facilities.
Nomenclature & Symbols
Design Engineering Glossary
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- Dynamic assembly - An assembly model in which parts are linked to their individual part files so the software can update the assembly when individual part files are modified.
- Exploded - An assembly in which parts are moved out of position along a axis so that each individual part is visible.
- Export - To save data from one application in a file format that can be read by another software application.
- Flange - A flattened collor or rim around a cylindrical part to allow for attachment.
- Hard copy - Printed or plotted materials.
- Hatch line - A series of parallel lines drawn on a diagonal to indicate a surface created by a cut.
- Hidden line - A type of line that represents an edge that is not directly visible because it is behind or beneath another surface.
- Interface - The portion of a system or device used to interact with or control it.
- Intersection - The point at which two points or surfaces meet, or the area shared bt overlapping surfaces.
- Limit tolerance - A tolerance that states the maximum and minimum allowable dimension, not the basic dimension value.
- Machining scale - A steel ruler with its smallest divisions 0.01 inch apart.
- Offset - The distance from an existing object at which a new object will be created.
- Overdimensioning - Showing the same dimension more than one way in the drawing.
- Part drawings - Individual drawings prepared for each part that will be manufactured or modified for the project.
- Parting line - A line on a molded part where the two mold halves come togeather.
- Solid modeling - A type of 3D modeling that represents the volume of an object, not just its lines and surfaces.
- Static assembly - An assembly that does not update when individual part files change.
- Storyboard - Pictures that dipict the sequence and composition of key events in an animation.
- Subassembly - A group of parts that fit togeather to create one functional unit.
- Surface modeling - A three-dimensional modeling that defines only surfaces and edges.
- System variables - Settings that control the default operation of a CAD package.
- Template - A drawing with certain settins that can be used repeatedly as the basis for starting a new drawing.
- Update - To regenerate the model or drawing using any new dimension values or changed perameters.
- User coordinate system - A coordinate system defined by the user to assist in creating CAD geometry.
- Vanishing point - A location where the projections converge in a perspective drawing.
- Vertex - A point where two or more curves, edges, or lines meet.
- Working drawing - Drawings that convey all the information needed to manufacture and assemble a design.