hi guys welcome to this tutorial for beginners in AutoCAD 2018 and here you will learn the commands of the sections draw and modify so after this video you will learn almost everything you need about 2d drafting also in the description I added a list of contents where you can proceed to the command you want to learn by clicking on it and the explanation will be in a very simple but illustrated way like here so let's start command line this is probably the most basic tool and the one you will be using most of the time so to activate it just click in this icon there then click where you want to have the first point and then click again for the second point of the line for example here but if I want the line to have a specific length hold the mouse in the direction that you want the line and finally type the distance that you want for example 500 but please note after typing the distance it's not possible to change the direction so press Enter then if I want another line to start in the endpoint of the last one I can click anywhere to place the second point or simply press escape to the activate the command command polyline you click in the icon next to pole to line then you click to enter the first line after the second line and as you see this is for drawing connected lines this one I wanted in this direction with the length of 1000 so I type the value and press Enter for the last line if you want to connect it with the first point you can simply type Ciel that means clothes now what differs from the command line to pull the line if you click on it it selects all the lines that are part of the polyline because it's only one object circle to draw a circle I'm going to click in this icon then I click to insert the center of the circle then I click again to define the radius or type it with the keyboard for example 1200 so simple but this command also has another options if I click in the arrow under the command I can see different ways to draw a circle this time I will choose Center and the diameter first I click to insert the center like before and this time instead of the radius if I type 1200 will be the diameter with the option to point the circle will be drawn with two opposite quadrants for example if I want it between these two lines first I click in this one and then vertically in the other side the option tangent tangent tangent I have to select three lines one two and three and the circle will appear in the only place where the lines are tangent with it by the way the option tangent tangent radius I select just two lines and then I have to specify a radius of the circle if I type 200 the circle will appear in the only place where is possible this case arc to draw an arc I can click in the icon or as well as the common circle if I click in the arrow there are lots of options here and by default it selects this one start center end so first I click to insert a start point then the center which will be this intersection and then if I drop the mouse I can see how the the arc will be and this is important the direction of drawing is anti-clockwise I will click in this endpoint to place the art here and with this I mean that if you want to draw starting with this point then click there for the center you will not be able to draw it as before now I want to draw an arc using these three points I choose the option 3 point then easily just click in the first point in the second and the third this maybe is the most easy way the options start and Direction is going to be very useful in cases like this I will insert the first point then the second point on the other side and if I want this line to tangent the arc in this point the tangent direction of the first point has to be the same of the line I hover on the endpoint and drag in the same direction until appears disabled extension so you click and it looks pretty good command rectangle this is also simple I click in this icon then again to insert the first point and to draw the rectangle just click anywhere where I want the opposite corner or type the horizontal and vertical distances from the start point first we type the horizontal distance then we press the button tab and insert a vertical distance and here you have the rectangle with the dimensions I typed command polygon if I go to the arrow next to the command rectangle I can switch to polygon then the first thing I have to do is to enter the number of sides for example if I want a hexagon I type 6 then I will use the center of the circle for the center of the hexagon and then I have two options first I will show you the option inscribed in circle and with this I click where I want to place one of the vertex on the other hand if I choose circus car with about circle I click where I want to put the middle point of an edge and this time is the circle that will be inside of the polygon spline with this we can create smooth curves and there are two main ways to do them first I will show you the command spline CV which we will draw spline with control vertices as you see we keep clicking to draw the line and when we finish we can type CL to close it then if I select the spline you can see the vertices there and the curves passing between them and if I click in any vertex I can change the curve in that part the other option is the command spline feet which is the first one here now we do the same process but this time you can see that the curves are passing in the points that I'm clicking as you can check now that I clicked on the spline and this comment can be very useful for drawing borders of irregular areas like in this case I can draw out the border of this island and I'm showing now more or less in a high speed drawing and when you finish you can type CL to close this the spline hearts this command is used to fill in closed areas I will click in its icon which is located there and then I click in an enclosed area to fill it color then I can click in another one or press ENTER to exit a command another option is to click on the arrow at the right and click in gradient so if I click now in an area this creates a surface with a mix of two colors the gradient I can change it to one of these types or if I want different colors I go here and choose the colors that I want another option is to set up a pattern to the hearts I click on it and then I change it to this one that says angle here it's also possible to change the scale of the pattern this number one here is the default scale now I will change it to 30 and you can see that it came much bigger okay now I'm going to show you the most used commands of the section modify it's very important to know how to use most of them if you want to draw your projects much faster so let's start with the most basic move with this you can move one or several objects to a different place I'm going to click there I select all the objects I want to move and press Enter then click to specify a base point and click again in the position you want to move the object if I type a number I will move that the distance from the base point in the direction of the dashed line command copy I can type C out to activate this command select all the objects press ENTER specify the base point and then copy it to where you want as you see it's like the command move but it keeps the original object now let's see an option of this command if I type a for array then I type the number of objects to array for example 5 and I will have 5 times my selection copied included the original one now I will enter a distance of 2000 to have the drawings disposed it like this rotate I click in the icon there to make a rotation I select my objects specify the base point and this will rotate around that point considering a horizontal line to the left as the default position and as you see it's getting hard to place the drawing straight and how to solve it going back select the objects again I specify the base point and now I'm going to type our to insert a reference I press Enter and then I'm going to define a line which I will rotate the object I select a first point of the reference line and then a second point now I can easily rotate it and place it in a horizontal position command trim if I click this icon here I will be able to trim off sections of opposites I select and I can delete all the sections between the intersections once they are selected of course when I finish I press ENTER another example this time I will select only these lines a press Enter if I click to trim these lines you notice that everything to the right disappeared because those two lines were not selected command extend to extend these lines until the vertical one I click in this arrow and select extend first I have to select a reference line it's very important and only then I click on the lines to extend if sometimes doesn't work very well I should click near the desired extension for example if I go to this side I can now extend mirror imagine that I want to draw these objects symmetrically in this other side I'm going to click on mirror then I select these objects I press ENTER now I have to specify a mirror line which will be in the midpoint of this line and then I can make a horizontal mirror line to reflect what I selected here in erase source objects I choose no to keep the original ones by the way if I choose yes it will delete them straights when I have figures like this one I can stretch them I click in the comments threads here I select the objects I want to move or to stretch but not the ones I want to keep exactly the same now if I specify at this point I can stretch the drawing in the direction that I want for example I type 500 to stretch that length if I do the same even if I have a dimension line it will also change to the correct size and doesn't matter where I specify the base point only the direction fill it if a click in the I can feel it I can turn a corner to an arc shape so I select two objects that connect in a corner to place an arc there if I want to edit the radius of the arc I activate a command type R for radius and type its length I choose 50 select first line then second line I hear you have a radius of 50 in the corner now let's assume this is a closed polyline or a rectangle when I activate fill it I can turn the four corners into arcs in one click only needs to type P for polyline and then click in the rectangle if I want to keep the original corner before select the objects I can type T for team and now I choose the option no trim then I select both lines and the original corners taster suffer if I click in the arrow next to the command Filat I can switch it to chamfer and as you can see in the icon the corner will be converted to a straight line now if I type D for distance I can specify the distances from the corner the line will be for the first time are we specified 251 for the second one 200 I press ENTER and then I click in the first line and then in the second line I can also use chamfer by specifying an angle I type the a then I type 250 for the first line and I want it with an angle of 30 degrees then I click in the first line and when I click on the second it will make the angle that I specified before scale this is used to change the size of one or a group of objects to activate this comment click this icon here now I'm going to select all my objects press Enter I select a base point but you can see that my drawing is getting too too big it's because I need to specify a scale factor and that this moment has this value of 160 so I'm going to repeat the process I select this objects the scale done now the waste point and for this case fatter I'm going to specify 0.5 and you can see that all the dimensions change to half but not the area because in this case it changes to 4 times smaller let's also see another option after selecting the object also select base point and now I can tie are for reference I press ENTER and I can change these objects based in the length of a reference line I am going to select the first point of my reference line then the second point and now I insert the new dimension of design for example 500 and you can see that everything was scaled in order to have the reference line with the dimension I specified array this creates copies of objects arranged in patterns for example I want to copy this window to have it displayed in these four floors so I'm going to click in the icon for rectangular array I am going to select the window a press enter and by default the objects were displayed in four columns and 3 rows so I just need to go to the ribbon on the top that just opened and I can modify it as I want for example I will change to 4 rouse the distance between them I will put 2600 which is the height of each floor the columns I will change to 2 and in this blank I put the horizontal distance between the windows 3000 when I'm done just press Enter now I will show you the polar array I click in this arrow here and then in polar array I'm going to select this part of this wheel I press ENTER then I select the center point of array which will be the center of the circle I click and my selected objects were displayed around it if I go to the ribbon I can change the number of items for example 15 and here you have them okay so it was everything for now thank you very much for watching and don't forget to subscribe to cutting block to check out all the rest of tutorials of AutoCAD also if you need more help I can give online lessons for beginners check more details in the channel page in the section about thank you and see you next time