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CADD-1 Lesson 7
UNIT 20, 21, & 27 - Text and Dimensioning Skills
Term or Command | Description |
---|---|
DTEXT command | Creates Single Line Text ( Each line is an entity) |
MTEXT command | Create multiline text (Each paragraph is an entity) |
DDEDIT command | Text editor - revises text on an existing drawing. |
%%C | Draws a Diameter symbol when typing text. |
%%D | Draws a Degree symbol when typing text. |
%%P | Draws a Tolerance symbol when typing text. |
%%U | Underlines text when typing text. |
Capital Letters | What all text should be typed with. |
CL | Centerline |
DIA | Diameter |
mm | Millimeters |
TOL | Tolerance |
CHAM | Chamfer |
NOM | Nominal |
AL | Aluminum |
DEG | Degree |
IN | Inches |
REF | Reference |
R | Radius |
CRS | Cold Rolled Steel |
TYP | Typical |
OD | Outside Diameter |
ID | Inside Diameter |
NTS | Not to scale |
Linear Dimension | Straight Line dimension |
Dimension Line | Shows where a measurement begins and ends. |
Aligned System | All dimension text & notes are in line with the dimension line and read from right to left. |
Unidirectional System | All Dimension text is horizontal and read from the bottom of the sheet. |
Dimensions | Another name for size description. |
Three Basics kinds of Dimensions | Overall, Location, and Size Dimensions |
Extension Lines | Thin lines that extend the lines or edges of a view. |
Leaders | Thin lines drawn from a note or dimension with an arrow pointing to the place where it applies. |
Associative Dimension | Updates dimension text when you modify the dimensioned object. |
Angular Dimension | genrates a dimension arc to show the angle between two non-parallel lines. |
Diameter | dimensions the diameter. (Use for full circles) |
Radius | Dimensions a circle or arc (Use primararily for Fillets) |
Baseline | allows you to continue from the first extension line of the previous dimension |
Continuous | allows you to continue from the second extension line of the previous dimension |
Center | Draws the center mark or line of an arc or circle. |
TEDIT command | allows you to move the text of an associative dimension. |
UPDATE | changes the associative dimension to reflect the current variables, styles, text font, units, and/or precision. |
CBORE | Counterbore |
MAX | Maximum |
CSK | Countersink |
BEV | Bevel |
MATL | Material |
Reference point | The point at which a linear dimension begins. |
Dual Dimensions | Customary Units and Metric Equivalent shown in the same dimension. |