0 UCS and OffSet commamd

UCS

We have seen that the UCS symbol represents the XY axis of that "Cartesian plane" on which we are designing and using the "ortho" we can constrain the Autocad drawing parallel to these axes.
If we wanted to draw for example 45 ° we can rotate the axis of the UCS.
To do this just type in the letters on the keyboard UCS and then press the enter key.
After typing the letter Z and then press Enter yet.

The letter Z indicates the third axis, it would be projected toward our eyes and it is the pivot around which rotate the axes X and Y.

Type 45 hours and then press Enter yet.
As you can see the UCS is rotated and with it the slider design, the command is completed. Drawing now "ortho" active we will be constrained to 45 °

I now repeat the command, writes UCS and press Enter twice in a row, the UCS will be reported to the inclination of origin. Simple no?
We repeat again, type in UCS and then hit enter, now enter a E instead of Z, then hit enter.
The cursor changes to a selection handle, if we have a slanted line on the design and selection, clicking on the mouse, the UCS will catch on that line.

To bring it back to the origin, as before repeating the command and press Enter twice, or type a W instead of Z and then enter.

“OFFSET” command.

Until now we have a line drawn vertically or horizontally, the length of 100 units; imagine that they are centimeters.
Let us now see a new command "Offset , we find that this function on "modify" toolbar" and has this icon  

It allows us to make copies parallel to a line, or concentric in the case of a circle or a geometric figure, one side or the other to the line of origin.

Click on the "offset" and look at the "command line", the program asks:
"Specify offset distance" , type 50 on the keypad and press "enter".
At this point the program asks us where we want to do the offset line, appears on the command line says "select object to offset" and you'll notice how the cursor turns into a small square.
You can then click on the line after you created earlier and click again on either side of this anywhere in the drawing, it will create a copy of the first line at a distance of 100 units as we have stated above.
You can now click the right mouse button (or hit Enter on the keyboard) to exit the command offset, or continue by selecting one of the lines and still make others equidistant offset.

Please note that running two or more offset of the same line in the same side, we'll create overlapping lines, we will see one but are actually more, is a classic mistake by trying to avoid.

Then:

A click on the command , Enter the offset distance and press enter to confirm it. Click the object to copy and then click again on either side of this, to create the copy, repeat these last two steps to make other offsets or click the right button to enter and exit the command.