You want to become a better CADuser without the efforts.
Here are some tips and tricksthat will help you to become a great user.

Tip #1

You want to havea perfect corner ?  Instead of using TRIM and/or EXTEND, use the FILLET command with a radius of 0or  CHAMFER with distances 0

Tip #2

You want to trimthe horizontal line. With TRIM ,  you dont have to chosse the two vertical linesfor cutting edges. Just hit Enter to the prompt "select cuttingedges", all entities in the drawing will be cutting edges.

Tip #3

You are tired totype @ and < ??? So use the "direct distance" method. In your drawings, 95% of the lines, our copiesand movements are horizontal or vertical. Then with ORTHO mode active,you give the first point, then you move the cursor in the desired direction,and you type the distance. From point: _endp of To point: 2.5

Tip #4

Did you know thatwe can find an intersection that doesnt exist ?  Lets take an horizontal line, and a verticalline that doesnt cross each other.  AutoCAD can find the intersection. Let pretendthat you want to draw a circle at that intersection. When the command askyou the center of the circle, you choose the osnap INT...then you touchone of the lines...The prompt ask you to choose the second object. If thereis a possible intersection, AutoCAD will find it. simulation

Tip #5

How to find the lengthof an arc ? before release 13, the trick was to transform the arc intoa polyline, then do the LIST command. That wasnt very powerful. Now youcan use the LENGTHEN command. After you activated it, choose the arc....itgives you its length and included angle.

Tip #6

To write some textunder the dimension line, add a suffix that begin with \X (uppercase).Like <>\XTYPIQUE

Tip #7

You have to drawa line at 30° from an existing line. Unfortunately you dont know theangle of that reference line. Use the Xline with the angle/référenceoption. simulation