LA Enter LA command This command can be used to open layer properties manage palette which is a tool for creating and managing layers in a drawing. X Enter X command This command can be used to explode objects like Polyline to simple lines, an array or a block to simple geometry, etc.į Enter F command This command can be used to add rounded corners to the sharp edges of the geometry, these round corners are also called fillets.ĬHA Enter CHA command This command can be used to add slant edges to the sharp corners, these slant edges are also called chamfers. ST Enter ST command Using this command, you can open a text style window that controls the properties of the default AutoCAD text style. I Enter I command This command can be used to insert an existing block or a drawing as a block in AutoCAD.

SC Enter SC command This command is used to change the scale of an object.ī Enter B command This command is used for creating a block, the properties of the block can be defined using the block definition window. OP Enter OP command Using this command, you can open the options window which contains most of the settings of AutoCAD. Do this by positioning the rubber-banding leader perpendicular to the coordinate direction you want to dimension, and then clicking that point.TR Enter TR command This command is used for trimming geometry.

At the Specify leader endpoint or : prompt, indicate the length and direction.

At the Select feature location: prompt, click the item you want to dimension.

Click the Ordinate Dimension tool on the Dimension toolbar, You can also enter Dor to start the ordinate dimension.

At the Specify new origin point : prompt, click the exact location of the origin of your part.

Click Tools > UCS > Origin, or type UCS.

To use AutoCAD’s Ordinate Dimension command, perform the following steps. Also note the origin location in the upper-right comer. In the lower-left comer, note the two dimensions whose leaders are jogged. The origin is usually an easily locatable feature of the part, such as a machined bore or two machined surfaces. Figure 9.21 shows a typical application of ordinate dimensions.

All major dimensions are described as x-coordinates or y-coordinates of that origin. In mechanical drafting, ordinate dimensions are used to maintain the accuracy of machined parts by establishing an origin on the part.

Autocad line length and angle