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2. Engineering drawing abbreviations and symbols - Wikipedia

   en.wikipedia.org/wiki/Engineering_drawing...

   The issuance of a drawing from the engineering/design activity to the production activity. In other words, the event when a draft becomes a completed, official document. A stamp on the drawing saying "ISSUED" documents that RTP has occurred. RTV: room-temperature vulcanizing; return to vendor: 1. RTV sealants, a way to seal joints. 2.

3. Constraint (computer-aided design) - Wikipedia

   en.wikipedia.org/wiki/Constraint_(computer-aided...

   The shaft and pulleys share a common centerline. The constraints of the key are set in relation to the keyseat. A constraint in computer-aided design (CAD) software is a limitation or restriction imposed by a designer or an engineer upon geometric properties [1]: 203 of an entity of a design model (i.e. sketch) that maintains its structure as the model is manipulated.

4. Technical drawing - Wikipedia

   en.wikipedia.org/wiki/Technical_drawing

   An example of a drawing drafted in AutoCAD. 2D CAD systems such as AutoCAD or MicroStation replace the paper drawing discipline. The lines, circles, arcs, and curves are created within the software. It is down to the technical drawing skill of the user to produce the drawing.

5. CAD standards - Wikipedia

   en.wikipedia.org/wiki/CAD_standards

   In AutoCAD usually parts to be printed in black are drawn in 1 to 7 basic colors. Color layer: Green-Center, Magenta-Measure of length, and Blue-Hidden. Color layer: Green-Center, Magenta-Measure of length, and Blue-Hidden.

6. AutoCAD DXF - Wikipedia

   en.wikipedia.org/wiki/AutoCAD_DXF

   As AutoCAD has become more powerful, supporting more complex object types, DXF has become less useful. Certain object types, including ACIS solids and regions, are not documented. Other object types, including AutoCAD 2006's dynamic blocks, and all of the objects specific to the vertical market versions of AutoCAD, are partially documented, but ...

7. Straightedge and compass construction - Wikipedia

   en.wikipedia.org/wiki/Straightedge_and_compass...

   It can only be used to draw a line segment between two points, or to extend an existing line segment. The compass can have an arbitrarily large radius with no markings on it (unlike certain real-world compasses). Circles and circular arcs can be drawn starting from two given points: the centre and a point on the circle. The compass may or may ...

8. Add Stationery in AOL Mail

   help.aol.com/articles/how-do-i-add-stationery-to...

   Click Compose to start a new message. 2. Click Add Stationery. 3. Select a stationery template. 4. Complete and send your email as usual. Popular Products. Account;

9. Computer-aided design - Wikipedia

   en.wikipedia.org/wiki/Computer-aided_design

   A 2D CAD drawing A 3D CAD model Computer-aided design ( CAD ) is the use of computers (or workstations ) to aid in the creation, modification, analysis, or optimization of a design . [ 1 ] : 3 This software is used to increase the productivity of the designer, improve the quality of design, improve communications through documentation, and to ...