AutoCAD Basic Tutorial for Beginners - Part 2 of 3
Summary
TLDRThis tutorial offers an in-depth guide to mastering basic drawing and modifying tools in AutoCAD. It covers creating lines, polylines, circles, and rectangles with precision, utilizing dynamic input and object snap features. The instructor demonstrates how to manipulate objects using commands like move, copy, rotate, and mirror, and introduces advanced techniques such as filleting and offsetting. The video concludes with a practical example, illustrating how these tools are applied to create a complex 2D drawing, setting the stage for discussions on drawing management and plotting in subsequent lessons.
Takeaways
- 🔧 The script provides an in-depth tutorial on using various drawing and modifying tools in a CAD software.
- ✅ It emphasizes the difference between the 'line' and 'polyline' tools, highlighting how polylines treat a series of connected lines as a single entity.
- 🔲 The 'circle' tool is introduced with options to create circles by specifying radius or diameter, catering to different user preferences.
- 🌀 The 'arc' tool is showcased, allowing users to create arcs by defining three points or using other arc-specific features.
- 📏 The 'rectangle' tool is explained, demonstrating how to create rectangles either by clicking two corners or by specifying dimensions with dynamic input.
- 🔄 The 'pan' tool is mentioned for moving the entire drawing area, and the 'move' tool is introduced for relocating selected objects.
- 🔄 The 'copy' command is highlighted as a way to duplicate objects without altering the original.
- 🔄 The 'rotate' tool is explained, showing how to rotate objects around a specified base point by a given angle.
- 🔄 The 'mirror' tool is demonstrated, allowing users to create symmetrical designs by mirroring objects across a defined line.
- 🔄 The 'fillet' tool is introduced, used for rounding the corners of sharp angles in a drawing by applying a specified radius.
- ✂️ The 'trim' tool is explained, used to remove unwanted parts of intersecting lines or shapes up to the nearest boundary.
- 🔄 The 'offset' tool is described, enabling users to create parallel lines or shapes at a specified distance from the original.
- 📏 The importance of the 'object snap' feature is stressed for precise alignment and selection of points such as endpoints, midpoints, and intersections.
- 🎨 The script concludes with a practical example of creating a complex 2D drawing using the discussed tools, demonstrating their real-world application in CAD.
Q & A
What is the basic difference between the line and polyline tools in CAD?
-The basic difference between the line and polyline tools in CAD is that when you select polyline, the complete set of lines will be selected as it forms a connected curve, whereas with the line tool, only a particular segment will be selected, and all of these are separate.
How can you create a circle with a specific radius in CAD?
-To create a circle with a specific radius in CAD, you can select the circle tool, click at a point, and then type in the radius value followed by pressing Enter.
What is the purpose of the arc tool in CAD?
-The arc tool in CAD is used to create different kinds of arcs. It allows making three-point arcs using first, second, and third points, and there are other features for creating various arc types depending on the workflow and drawing requirements.
How do you make a rectangle with specific dimensions in CAD?
-To make a rectangle with specific dimensions in CAD, use the rectangle tool, click at a point, and then type in the length and width values after pressing the Tab key, followed by pressing Enter.
What is the function of the pan tool in CAD?
-The pan tool in CAD is used to move the entire drawing area. It can be activated by pressing and holding the mouse wheel and then panning around.
How can you move a specific object in CAD without moving the entire drawing?
-To move a specific object in CAD without moving the entire drawing, use the move select tool from the modify panel. Select the object, press Enter, choose a base point, and then move it to the desired location.
What does the copy command do in CAD?
-The copy command in CAD creates copies of the selected object(s). It works similarly to the move command but instead of moving the original object, it duplicates it.
How can you rotate an object in CAD?
-To rotate an object in CAD, use the rotate tool, select the object, press Enter, specify the base point, and then enter the rotation angle to rotate the object by that angle.
What is the mirror tool used for in CAD?
-The mirror tool in CAD is used to create a mirror image of any object. You select the object, press Enter, specify a mirroring line by clicking two points, and the tool creates a mirrored copy of the original object.
How do you use the fillet tool to round the corners of a drawing in CAD?
-To use the fillet tool to round the corners of a drawing in CAD, select the fillet tool, choose the radius option, specify the radius value, and then click on the lines where you want the fillet to be applied.
What is the trim tool used for and how do you use it in CAD?
-The trim tool in CAD is used to remove unwanted parts of intersecting objects. After selecting the trim tool and pressing Enter, click on the part of the drawing that you want to trim, and it will trim up to the next boundary.
How can you create an offset of an object in CAD?
-To create an offset of an object in CAD, use the offset tool, type in the offset distance, select the boundary, and then move it inwards or outwards to create the offset copy.
Why is the object snap feature important in CAD?
-The object snap feature is important in CAD because it allows for precise alignment and selection of specific points on objects, such as endpoints, midpoints, centers, and intersections, which is crucial for accurate drawing.
Outlines
🖌️ Introduction to CAD Drawing Tools
This paragraph introduces the viewer to the basics of CAD drawing tools, specifically focusing on the line and polyline tools. It explains the difference between these tools, where a polyline creates a connected curve, and a line creates separate segments. The tutorial then moves on to demonstrate how to create a circle with a specified radius or diameter. The user is also introduced to the arc tool, which allows for creating arcs using three points or other features. The paragraph concludes with an explanation of the rectangle tool, emphasizing the use of dynamic input for precision.
🔄 Modifying and Moving CAD Objects
The second paragraph delves into modifying and moving objects within a CAD drawing. It covers the use of the move command to relocate selected objects, the copy command to duplicate objects, and the rotate command to adjust the orientation of objects. The paragraph also introduces the mirror tool, which creates symmetrical objects across a specified line. The discussion then shifts to the fillet tool, used for rounding the corners of objects, and the trim tool, which removes unwanted parts of intersecting objects. Lastly, the offset tool is explained, which creates parallel copies of objects at a set distance.
📏 Advanced CAD Techniques and Object Snap
This paragraph focuses on advanced CAD techniques, including the use of the object snap feature, which is crucial for precise drawing. The tutorial explains how to activate object snap for various points like endpoints, midpoints, and intersection points. It also demonstrates how to create a complex 2D drawing using a combination of line, circle, and offset tools. The process involves creating circles with specific diameters, using offsets to create tangent lines, and cleaning up the drawing by trimming and deleting unnecessary lines.
🔧 Finalizing the CAD Drawing
The fourth paragraph is about finalizing the CAD drawing by adding circular elements, creating mirror images, and making precise offsets. It describes how to use the fillet tool to add rounded corners and the trim tool to remove excess parts of the drawing. The paragraph also covers the process of creating circles at specific intersection points and using the mirror tool to reflect objects across a line. The tutorial concludes with a step-by-step guide to clean up the drawing by trimming and deleting unnecessary lines to achieve the desired end result.
📘 Practical Application and Upcoming Topics
In the final paragraph, the focus is on the practical application of CAD tools in real-world scenarios. It summarizes the process of creating a detailed drawing using the tools and techniques discussed in the previous paragraphs. The paragraph also hints at the topics that will be covered in the next video, which include managing drawings, adding symbols, and plotting a drawing.
Mindmap
Keywords
💡Polyline
💡Dynamic Input
💡Circle
💡Arc
💡Rectangle
💡Pan
💡Move
💡Copy
💡Rotate
💡Mirror
💡Trim
💡Offset
💡Object Snap
Highlights
Introduction to the basic workflow of making a line using different CAD tools.
Explanation of the difference between the line and polyline tools in CAD.
Demonstration of creating a circle with a specified radius or diameter.
Tutorial on using the arc tool to create arcs with various features.
Guidance on creating rectangles with precise dimensions using dynamic input.
Description of how to move selected drawings using the move command.
Illustration of the copy command to duplicate objects in CAD.
Introduction to the rotate tool for rotating objects around a base point.
Explanation of the mirror tool to create symmetrical objects.
Tutorial on using the fillet tool to create rounded corners on sharp edges.
Introduction to the trim tool for removing unwanted parts of intersecting objects.
Explanation of the offset tool to create parallel lines or shapes.
Emphasis on the importance of the object snap feature for precision in CAD drawings.
Description of how to use object snap to accurately select points like endpoints and midpoints.
Practical demonstration of creating a 2D drawing using a combination of CAD tools.
Step-by-step guide to making a complex drawing with circles, lines, and offsets.
Techniques for cleaning up a CAD drawing by deleting unnecessary lines and elements.
Final result of a detailed CAD drawing showcasing the application of various tools.
Transcripts
so now you are familiar with the basic
workflow of making a line using
different tools we'll move on to learn
about different draw and modify tools
and then we'll make a simple drawing
using those tools so you already know
about line let's talk about polyline so
I'll go to polyline and as you can see I
have the dynamic input active which I
prefer to keep deactivated so I'll press
f12 function key and it will be
deactivated like this and now I'll click
at a point the next next next and so on
and enter to exit this command so this
one is polyline let's go to line again
and once again I'll do the same and we
have the line here so the basic
difference between these two tools is if
you select polyline the complete set of
lines will be selected as this one is a
connected curve but not in case of line
if you select line only that particular
segment will be selected and all of
these are separate so that's the first
and the basic difference between line
and polyline tool so I'll select them
and I'll delete both the drawings now to
make the circle you can select the
circle tool then click at a point and
now type in the radius value so I'll
type 100 as the radius and I'll press
Enter and here we have it so we have the
circle of radius 100 unit you can also
type in the diameter so I'll go to
circle again I'll click at a point and
now instead of radius I will go to the
command line and I'll click on this
diameter and now AutoCAD will prompt for
the diameter value so if I type hundred
now it will make a circle of radius 50
or die a hundred and here we'll have the
circle of die a hundred now similarly we
have the arc tool now using arc tool you
can make three point arts using first
second and third point and also there
are other features which you can use to
make different kind of arcs and it just
depends on the kind of workflow and the
drawing that you have and depending upon
that you can select from any of these
are tools similarly for the circle we
have six different ways of making circle
and it will just depend on your
workflow and depending on that you can
select the type of circle that you need
now let's move to the rectangle tool so
using rectangle tool you can obviously
make a rectangle in this case click at a
point and then click at second point and
you'll have your rectangle the first
point and second point now this one is
obviously not a precise way of making
rectangle so if you want to make it
precise then activate the dynamic input
by pressing f12 and go to rectangle so
that we have this tooltip now and click
at a point and now type in the length
and width so I'll type 100 for the
length and then I'll press tab key and
I'll type 50 for the width and I'll
press Enter
and here we have it so the length is 100
and the width is 50 and that's the
rectangle which we need now you can move
your complete drawing area using pan
tool as you know that just press and
hold your mouse wheel and pan it around
but what if you want to move only
selected drawings for example if you
only want to move this circle then you
can use the tool right here on the
modify panel called move select move
tool now select the object that you want
to move and press Enter now select the
center or any other point if you want
and then move it to your desired point
so click let go then again click and it
will move it I'll do it again so I'll go
to move then I'll select this circle or
maybe let's select multiple objects so
I'll select this rectangle and the
circle I'll press ENTER and now you need
to start from a point so I'll click at a
point maybe here randomly and it will
pick your objects from that point now
click at the next point where you want
to drop it there we have it now the copy
command works in a similar way but in
this case instead of moving the object
it will create copies so I'll go to copy
I'll select the circle and I'll press
Enter
now I'll select the center of this
circle for picking this and now look at
this we still have the original object
but now a new copy is also made
now click at this next point next point
and you'll have multiple copies of the
same object now to exit this command
press Escape key so I'm gonna now select
all of these things that we don't need
and I'll delete them all so I'll
deactivate this dynamic input using this
status bar you can also deactivate it
using f12 function key we will now work
with simple drawing here now let's talk
about rotate command so here we have the
rotate tool now select the rotate tool
and select the object that you want to
rotate now I'll press ENTER and the
command line will prompt you to specify
the base point whenever you are in doubt
remember you don't know the next set of
steps look at the command line it will
always prompt you with the next set of
steps so in this case you need to
specify the base point so I'll select
this one is the base point and now your
object will start rotating along that
base point now look at the command line
it is prompting you to specify the
rotation angle so let's type 30 and
enter and look at this so now the
rectangle is rotated to an angle of 30
degrees with respect to the original
rectangle it was horizontal it's now 30
degrees with respect to that now let's
add a circle inside this rectangle
somewhere here and also I'll make a
straight line here like this all right
and I will talk about the mirror tool
which is right here
so using mirror tool you can make a
mirror image of any object in this case
I'll select this rectangle and the
circle I'll press Enter and now you need
to specify a mirroring line so mirroring
line in this case is this one this line
so I'll click on this point and then
this point and we'll have this kind of
mirror image so using mirror tool you
can make mirror images like this so
press ENTER to finish the command and
you'll end up with mirror image of this
original object where this was the
mirroring line so mirroring line is not
always necessary you can even make
mirrors
without the mirroring line so I'll go to
mirror I'll select these two objects
press ENTER and now I'll randomly click
at two points maybe you can make it
aligned if you want like this but I'll
just make a straight lines and I'll
press ENTER and we'll still have the
mirrored copies now let's talk about
fill its so we have a tool here called
fill it and using fill it you can make
the corners of any sharp drawing rounded
so I go to fill it and now I'll go to
radius and now I'll specify the radius
as let's say 5 unit and enter now I'll
click on this line and this line and
look at this a small radius of 5 unit
will be applied let's do it again so
I'll go to fill it and now I'll click on
this radius option and type in the
radius value in this case I'll type a
bigger value maybe 12 unit and enter and
now select the first line and the second
line and you'll have this kind of fill
it now let's make a line that intersects
these objects like this and now we'll
talk about the trim tool so like this so
we have a lot of intersecting curves
here and now if you want to trim some
unwanted geometries for example if you
want to trim this part of the line or
this part you can use the trim tool
right here so I'll go to trim and now
after selecting trim just press Enter
key this is a step which you are most
likely to forget so in this case select
trim and then press Enter
don't forget to press Enter key right
after selecting the trim tool now click
on the part of the drawing that you want
to trim so in this case I'll click on
this line and look at this it will trim
it up to the next boundary if I click
here it will trim it up to the next
boundary the similar thing will happen
for the circle as well if I click here
it will trim it up to the next
boundaries so using trim tool you can
trim the objects up to
next available boundaries like this
that's a trim tool now finally let's
talk about a tool called offset so I'll
go to rectangle and I'll add a Filat of
radius 10 on this corner and I'll press
Enter
pressing enter we'll just repeat your
last command and I'll select this one
okay there we have it now I'll go to
offset and offset tool we'll make
another copy of your object which is
geometrically similar but at a certain
distance so now I'll type in offset
distance of let's say 2 unit I'll press
ENTER now I'll select this boundary and
I'll move it outwards so if I click
inside it will make an offset copy just
inside if I move outside it will make
the offset copy outside just like this
again I'll go to offset and this time
I'll add a bigger value of let's say 10
unit for the offset distance I'll select
the same line I'll click outside and
look at this we have this offset again
so that's where officer tool now let's
talk about the object snap status bar
option which is a really important
status bar option and without using
object snap you won't be able to make
precise drawings so whenever you select
any command and move your cursor close
to any point for example in this case
I'm moving close to these intersection
points also called the end point or a
cat or a matically snap your cursor to
those points and you'll also see this
tooltip with end point and this green
box so this is happening because we have
object snap activated here and on the
object snap if you click on this arrow
you'll see list of points which Orica
add recognizes and from this list we
have endpoint midpoint Center
intersection and insertion selected so
currently only these points will show up
when you bring your cursor close to any
point in this case look at the midpoint
it is now chaired I'll just uncheck this
now I'll go to this point we
have in point here and I'll just click
here and now I'll move my cursor close
to the midpoint of this line this line
but look at this we don't have anything
now even if I click here which is very
close to the midpoint look at my drawing
it will snap the line to this point
because this was highlighted it won't
snap to midpoint now I'll press ctrl-z
and I'll go to this object snap arrow
and I'll activate midpoint also make
sure that this tool is also active here
on your status bar this should be
checked now if I go to midpoint look at
this it will be highlighted and if we
show the midpoint so now we can clearly
click like this so this is the object
snap now other points in object snap
include the center if I move close to
the center of an arc or circle it will
recognize that other points are the
intersection point for example if I go
here it will recognize the intersection
of these two lines or any other curve
and so on if you deactivate object snap
you won't be able to snap to these
points and look at this even if I move
close to this point it won't recognize
it no end points no mid points so it
should be checked if you want these
points so now we are fairly equipped
with the basic draw and modify commands
of ArchiCAD and using these tools will
now make our 2d drawing so this is what
we are going to make so this drawing
here in our CAD so for this drawing I
will start with the line tool so I'll go
to line and I'll click at a point and
now I'll make a line of length 18 unit
which is this one 18 unit so 18 and
enter and enter again now look at this
line it's kind of very tiny so I'll zoom
in to bring it here in the drawing area
now we see it clearly so now I'll go to
circle and I'll make all these circles
so Dyer 8.2 daya 4.8 daya 3.6 let's
start with the first one and AutoCAD is
prompting you to specify radius but we
need daya so I'll go to diameter and I
type 8.2 obviously you can directly type
4.1 if you know the radius you can just
type in but in this case I'll do that
I'll type the Daiya now again I'll press
ENTER and this will repeat the last
command so I'll go to Center once again
I'll click on diameter and I'll type 4.8
enter enter again the same center again
diameter and 3.6 all right so we have
the three circles now we'll also make
this circle this circle of five point
seven although this one is a small arc
but just imagine that we have a complete
circle we'll trim off everything that is
not necessary so I'll go to circle the
same Center and this time we need to
type in radius so five point seven and
enter okay we are done now look at this
total gap it is twelve and half of this
should be six so we have the central
line we can make an offset on this side
as well as on this side with a distance
of six unit so I'll go to offset now
I'll type in six and enter and now I'll
make an offset here on this side to the
left another one to the right all right
now we need to make another offset as
you can see this line is tangent on this
circle so is this so that means this
line is at a distance of the radius of
this circle so it's radius is four point
one as diameter is eight point two so
distance between this line and this line
should be four point one so let's go to
another offset offset four point one
enter this line to the left this line to
the right we are done now let's go to
line tool again I'll go to this point
I'll make this line and I'll press
Escape key now this gap is one unit as
you can see here so again I'll go to
offset one enter this line and I'll
click upwards now this gap is full unit
from this
lines again we'll make another offset so
offset for enter this line and to the
top now the center of these circles are
at a distance of 2.5 and it's
intersected by this line
so this line and this line so that's the
intersection point where the center is
so again I'll go to offset and I'll make
a line here which we don't see will
later on delete this line but for now we
need to make it so I'll just go to
offset and this distance is 2.5 so 2.5
and this line to the top alright so we
have four of these lines and we have lot
of lines here which are completely not
necessary so we need to clean up our
drawing a little bit so let's first
delete this line the line in the center
we don't need it and now I'll go to trim
and I'll press ENTER so now we don't
need this line we don't need this line
all right it's cleaned also we don't
need this part of the line and this part
of the line we also don't need many of
these things but we'll delete those
drawings later on for now I'll press
escape and now I'll add these circular
portions using Filat as you can see the
fill it radius is 1.6 so I'll use this
and go to Follette now I'll select
radius and I'll type in 1.6 for the
radius now I'll select this line and
I'll click right here and the fill it is
added but unfortunately we don't have
the line here anymore so I'll go to line
and I'll just make one line like this
I'll just touch it here that's enough so
I'll go to fill it and once again radius
it should be 1.6 and this line and this
line all right so we have it now we need
to make our circles so again for making
circle we don't have the intersection
point for that I'll go to line I'll
click on this point here and Alex
ended up to this point so that we have
the intersection I'll go to circle I'll
select this Center now the radius of
circle is 1.5 - well that's the diameter
and the second one is 2.4 let's use
these values so I will go to diameter
1.5 2 and press ENTER again the same
Center and this time the diameter is 2.4
so dire 2.4 and enter all right now we
can delete this line and this line as
well these two where the reference lines
they are no longer needed now we need
the same kind of circle here but instead
of making it I'll make the mirror image
so I'll go to mirror I'll select these
two circles and enter and now I'll click
on this midpoint and then on this
midpoint for the mirroring line and I'll
press Enter and we'll have the mirror
image like this so as you can see we are
approaching very close to the end result
so before we do that let's trim this
extra part I'll go to trim enter I'll
trim this part so that we have a clean
picture here of what we need to make and
we just need to make this part of the
drawing which we can easily make using
offset so I'll go to offset again and
now this offset is 1.6 as you can see
here so let's type that 1.6 I'll select
this line I'll click to the left I'll
select this line click to the right now
this is 4.8 so I'll go to offset again
and distance is 4.8 enter now this line
is offset at a distance of 4.8 now all
we need to do is just trim that's it so
I'll go to trim enter and I'll trim this
this this part this part this part this
tiny part right here and this tiny part
right here and this part of the drawing
and I'll delete all of these extra lines
so I'll select these lines these lines
and these two and I'll delete them and
this is our end result so now you can
clearly see how we use these tools in a
practical situation like this to make
our drawings in our CAD so in the last
video we'll talk about managing our
drawing adding symbols and plotting of a
drawing
[Music]
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