2- Format > Drawing limits
Or write limits > Enter 
# 30, 30 just for example
3- View > Zoom > All
Afterthis steps should be like this...
# GRID is active
You should make sure those orders are active
GRID
OSNAP



DYN

ORTHO

OSNAP  
OTRACK 

Click   OSNAP  ..
 settings
 
Order  ORTHO
Inactive 
Select 


Ctrl + A  Select
Esc  Select 
Esc 
 ...  #
 x
Tab ,
 y
:))  
  ,,
Click  

 (:
 
 3  ...  Order
-1
First Point --, -- > Enter Second
Click "line" or Write L> Enter 
First Point --, -- > Enter 

@length<angle
 
Click "line" or Write L> Enter 
First Point --, -- > Enter 

@x,y
Rectangle


 
Polygon
 pol > Enter  

Enter 



 


radius
 .. :) Enter

Pol > Enter 
Enter
 

Enter <   Radius
  Diameter
2 
 ..
3
C > Enter 
3 3p  

2p
Ttr  

C > Enter 
Ttr  

radius
 
 (:




Crossed Belt Open


 
Belt  Open
L> Enter 
Object Snap
Snap to Tangent 

Snap to Tangent

 (:
 
 
Crossed Belt 
Open Belt 

 (:

:D 

Ellipse
 
axis end point of ellipse

Enter <  
Enter <  
 (: ...
Draw


modify 
 Select ... Erase
e > Enter Erase  
 
select co > Enter Copy


 select move 

 Mirror
 select
mi > Enter mirror

2 End points


 

 
Offset
 offset select  
Specify offset distance



 ((:



 Offset


Esc
 ((:

Rotate
Rotate   select
ro > Enter
Specify Base Point

 

 Rotate  offset
) (

20  
20  
90  

Trim
 


 
Enter Trim 

Tr > Enter > Enter
Extend
 
ex   Extend   select
Enter
Fillet


Fillet

Enter

Fillet   Chamfer
 
ORTHO    Chamfer

Fillet Chamfer 

Rectangle
Chamfer   Rectangle
Explode  Fillet

 modify Explode
modify 

Center Lines
 
Layers  

Window 
 
Click  
 New Layer  

C  
Enter
Layer 
 Layer   Color
Wh... 
 
Ok 
Line Type
Line Type
 Layer
Continu...
window 
OK  
 

Ok 

Load
OK 
Line weight 

Layer 
Ok 



Layer 

 
Layer   Hidden Lines



Isometric
2D


SNAP Click  
 


OK 
 

y  z 
F5 

y  x 
 

x  z 
 ((:
 ..
Ellipse
Draw
Ellipse 
isocircle
radius
diameter  d 

Enter