Rice. 3.19. Copying objects

Option Several(Multiple) copies the selected objects multiple times (copy vectors have the same first point, but different second points).

The MIRROR command button (Fig. 3.20) allows you to mirror (symmetrize) the selected objects about the axis, which is defined by two points.

Rice. 3.20. MIRROR command button

After selecting the objects, the AutoCAD system asks:

First point of reflection axis:

(Specify first point of mirror line:)

Then, after your answer, the second point is requested, and the straight line passing through both points will be the axis of reflection (symmetry):

Second point of reflection axis:

(Specify second point of mirror line:)

Specify the second point (Fig. 3.21).

Rice. 3.21. Symmetrization of objects

After that, it remains only to answer what to do with the original objects (delete or not):

Delete original objects? [Not really]<Н>:

(Delete source objects? :)

If you do not want to delete the original objects, then answer N (N) or press the key . Otherwise, answer Y (Y). The MIRROR command will be executed.

Comment

If there are texts among the symmetric objects, then under normal conditions they are also reflected relative to the axis, which leads to their unreadability. To prevent texts from flipping when flipped, set the MIRRTEXT system variable to 0 (instead of 1). Then the anchor points of the text are symmetrical, and the text itself remains rotated in the same direction as the original. O working with system variables, see sec. 11.1.

Next button in the panel Drawing(Draw) corresponds to the SIMILARITY (OFFSET) command (Fig. 3.22).

Rice. 3.22. OFFSET command button

The command is intended for drawing similar (parallel) lines to linear objects (segments, rays, straight lines, polylines, arcs, circles, ellipses and splines). There are two options for constructing a parallel line: by distance (displacement) from the original and through a given point. First command request:

Offset amount or [Point]<1.0000>:

(Specify offset distance or<].0000>:)

Rice. 3.23. Building Similar Objects

The angle brackets contain the default value (from the previous execution of the OFFSET command), which is either a positive number or an option name Dot(through). First, let's look at the option where you specify an offset value, which can be done either by entering a number from the keyboard, or by specifying two points (AutoCAD will measure the distance between the points and take it as the offset value). Next request:

<выход >:

(Select object to offset or :)

Specify only one object to which you want to draw a parallel line. Then AutoCAD will ask you to clarify in which direction from the object you need to build a parallel line (almost always there are two parallel lines to any object):

Pick a point that defines the offset side:

(Specify point on side to offset:)

You just need to specify any point on the screen that is on the same side of the object as the future parallel line (Fig. 3.23).

If, at the beginning of work with the OFFSET command, you, in response to a request Offset amount or [Point]: (Specify offset distance or I Through I:) choose the T (T) option, AutoCAD first asks:

Select an object to create similar or<выход>:

(Select object to offset or :)

And after specifying the object, it asks for a point:

Through a dot:

(Specify through point:)

You specify a point through which the system draws a line parallel to the selected object. The amount of the resulting offset is calculated automatically. Further, a request is again issued to select objects for creating similar ones. At the end of the constructions in the mode Dot(Through) you need to press a key .

The ARRAY command button (Fig. 2.24) is designed to create a group of copies of the same objects, and the copies are arranged according to a certain law in the sockets of a rectangular or circular array.

Rice. 3.24. ARRAY command button

First command prompt after selecting objects:

Array Type [Rectangular/Circular]<Л>:

(Enter the type of array<Д>:

(Rotate arrayed objects?< Y>:)

Depending on the answer, the copied objects will rotate parallel to the tangents to the arc or not (Fig. 3.26).

Rice. 3.26. Copying Objects with a Circular Array

Comment

The radius of the circular array is the distance between the center point of the circular array and one of the characteristic points of the last object selected for copying (one of the end points of the segment, the center of the circle, the text start point, etc.).

The button of the MOVE command (Fig. 3.27) allows you to move the selected objects parallel to the vector defined by two points.

The prompts and actions of this command are very similar to those of the COPY command. First query after selecting objects:

Set the first point. Next question:

Second move point or<считать перемещением первую точку >:

(Specify second point a/displacement or :)

Specify the second point of the displacement vector (Fig. 3.28). If you press the key instead , then the coordinates of the first point are considered as moving coordinates.

Rice. 3.27. MOVE command button

Rice. 3.28. Transferring objects

The ROTATE command button (Fig. 3.29) makes it possible to rotate the selected objects relative to the base point by a specified angle.

First, the command informs about angle measurement modes:

Current angle reference settings in PS K: ANGDIR=npomu in h/s ANGBASE=0

(Current positive angle in UCS: ANGDIR=ccw ANGBASE=0)

First query after selecting objects:

Base point:

(Specify base point:)

Specify the base point for the rotation. Further:

Angle of rotation or [Reference angle]:

(Specify rotation angle or:)

Specify the angle by entering from the keyboard or using the mouse (Fig. 3.30).

Rice. 3.29. ROTATE command button

Rice. 3.30. Rotate objects

Instead of entering the angle, it is possible to specify the angle of rotation using the option Reference angle(reference). For example, let the rectangle with the segments inside it (Fig. 3.31) need to be rotated relative to point 1 at such an angle that the long lower side of the rectangle, marked by points 1 and 2, becomes strictly horizontal.

The problem can be solved using the above option and without calculating the initial slope angle.

Call the ROTATE command in any of the ways you know. On request Select objects: (Select objects:) mark the rectangle and the required segments with the mouse and complete the selection of objects by pressing the button . On request Base point: (Base point:) with use object snap to specify point 1. Then, when prompted Rotation angle or [Reference angle]: (Specify rotation angle or :) select option 0 (R). A request will follow:

Reference angle<0>:

(Reference angle<0>:)

Rice. 3.31. Rotate objects using the option Reference angle

Let's choose the method of entering the angle using two points. Specify point 1 (using object snap) and when prompted Second point: (Second point:) specify point 2. The starting angle is thus defined. Next, AutoCAD asks:

New corner:

(new angle:)

As a new angle, you need to enter 0 from the keyboard. The rectangle will rotate to a horizontal position. The task has been solved.

The SCALE command button (Fig. 3.32) allows you to scale (i.e. increase or decrease) the selected objects relative to the base point.

On fig. 3.33 shows an example when a rectangle and a circle inscribed in it are scaled relative to the point of the lower left corner of the rectangle.

Team SCALE(SCALE) after selecting objects asks:

Base point:

(Specify base point:)

Rice. 3.32. SCALE command button

Rice. 3.33. Object scaling

Specify a base point (for example, the bottom left corner of the rectangle). Further:

Scale or [Reference Line]:

(Specify scale factor or:)

To increase objects, you need to enter a number greater than 1, to reduce - a positive number less than 1. If you need to scale by a fractional number of times (for example, 3/7), then you can use the option Reference line(reference). In response to selecting this option, AutoCAD issues a prompt:

Reference length<1>:

(Specify reference length< 1 >:)

Enter the number 7.

New length:

(Specify new length:)

Rice. 3.34. STRETCH command button

Rice. 3.35. Selecting an Object to Stretch with a Crossing Box

The command is usually executed on a polyline (although it can also stretch arcs, elliptical arcs, splines, and other linear primitives) when it is necessary to move several of its vertices parallel to a vector given by two points, and the remaining vertices of the polyline must be left in place and the geometry of the object must be transformed accordingly . The STRETCH command is not applicable to a set of pre-selected objects, because in this case the part of the polyline you are interested in is important.take with a secant box or a secant polygon, so the first query looks like this:

Select objects to stretch with a crossing box or a crossing polygon... Select objects:

(Select objects to stretch by crossing-window or crossing-polygon... Select objects:)

On fig. 3.35 shows a polyline in the form of a rectangle, in which two right vertices need to be moved.

Rice. 3.36. Specifying a displacement vector in the STRETCH command

Select a rectangle as a secant frame, but in such a way that only the right vertices of the polyline are inside the frame (those readers who have forgotten how to select objects can return to section 3.1). End the selection of objects by pressing the key . Then comes the query for the first point:

Base point or move:

(Specify base point or displacement:)

Pick the first point.

Second move point:

(Specify second point a/displacement:)

Specify the second point of the displacement vector (Fig. 3.36).

As a result of executing the command, the polyline vertices that did not fall into the frame remained in their old places, and the vertices selected by the frame moved parallel to the specified vector.

The command button INCREASE (LENGTHEN) (Fig. 3.37) extends segments, arcs and end segments of polylines by a specified amount (in units of length or angular units).

Rice. 3.37. LENGTHEN command button

First command request:

Select object or [Delta/Percent/Total/Dynamics]:

(Select an object or:)

If you select an object at this point, AutoCAD provides options that you can use to increase it (i.e. its current length, and for an arc or arc segment, its central angle). Command options;

• Delta(DElta) - the amount of elongation is indicated (in number);
• percent(Percent) - the new length is indicated as a percentage of the old length;
• Total(Total) - specifies the new total length in linear or angular units;
• Dynamics(DYnamic) - the lengthening value is specified dynamically, i.e. by specifying one point with the mouse, and the distance to the next specified point becomes the lengthening value.

In case of option Delta(DElta) AutoCAD system requests:

Length increment or [Angle]<0.0000>:

(Enter delta length or<0.0000>:)

To this, you give the increment in millimeters (positive for increasing length, negative for decreasing length), and AutoCAD issues the following prompt:

Select an object to change or [Cancel]:

(Select an object to change or:)

The O (U) option overrides the zoom method preset and reverts to the earlier prompt. If you specify an object, then it is fromchanges (increases or decreases, depending on the sign of the lengthening value), and from the end closest to which you specified the object to be changed. Next, the request to select an object to change is repeated cyclically until you press the key .

If instead of incrementing the length you choose the option Corner(Angle), the system will ask (the previous increment can be displayed in angle brackets):

Enter angle increment:

(Enter delta angle:)

Enter the angle increment value (it can be negative), and in response to the next prompt, select the object to change.

Other options of the INCREASE (LENGTHEN) command work similarly. On fig. 3.38 shows an example of increasing the arc using the option Dynamics(DYNAMIC). The beginning of the rubber band shows the end of the arc before the change. The end of the rubber thread (with a cross) defines the new central angle. The arc is built by the AutoCAD system with a new value, which is fixed by fixing a new point with the left mouse button.

Rice. 3.38. Increasing the arc with the option Dynamics commands INCREASE (LENGTHEN)

The TRIM command button (Fig. 3.39) allows you to trim an object (objects) with the help of other objects intersecting it.

Rice. 3.39. TRIM command button

First command request:

Current settings: Projection=UCS Edges=No Continue Select cutting edges... Select objects:

(Current settings: Projection = UCS Edge = No extend Select cutting edges... Select objects:)

The first line of this message shows the current command settings, which can be changed if necessary. Let us analyze the mechanism of action of the command using the example of Fig. 3.40, which shows the position of objects before the cropping operation on the left side of the screen, and after it on the right.

Rice. 3.40. Cropping objects

The order of specifying objects in this case is very important. First you need to specify the "cutting edges" - in our example, this is one segment (it is red on the screen). The end of the selection of cutting objects is pressing the key . Next request:

Select the object to be cropped or [Projection/Edges/Cancel]:

(Select object to trim or<Пск>:

(Enter a projection option [None/Ucs/View] :)

The options offered for selection mean that cutting can be done not only by cutting edges, but also by their projections, and the projection method can be set either according to the current coordinate system (option Pitch(Ucs)), or according to the current view (option View(View)). These options will become clear after analyzing the operations of three-dimensional constructions. Option Not(None) disables cropping, but only projections, not cutting edges.

When choosing an option Edge(Edge) prompt will be displayed:

Edge Continuation Mode to Imaginary Intersection [With Continuation/ Without Continuation]<Без продолжения>:

(Enter an implied edge extension mode :)

When choosing a mode To be continued(Extend) cutting is performed not only by the selected cutting edges, but also by their extensions. In the case of the mode No continuation(No extend) Trimming with cutting edge extensions is not performed.

The same lines, if necessary, can be included both in the set of cutting edges and in the set of trimmed objects. For example, if two intersecting segments are to be mutually cut off, then each of them must be included in both of the above sets. Then the system will perform mutual trimming in one TRIM command.

When trimming, primitive types can be converted. For example, a circle can become an arc, a ray can become a segment, a straight line can become a ray or a segment.

The EXTEND command button (Fig. 3.41) allows you to select a set of "boundary edges" and then specify the objects that extend to these edges. The order in which objects are specified is very important because it is important for the system to distinguish between boundary and extending objects.

Rice. 3.41. EXTEND command button

The first message contains information about the active modes (modes shared with the TRIM command) and requests the boundary edges to which the lengthening operation should be performed:

Current settings: Projection=UCS Edges=No Continue Select boundary edges... Select objects:

(Current settings: Projection = UCS Edge = No extend Select boundary edges... Select objects:)

Rice. 3.42. Extending Objects

Specify the entities that should form the set of boundary edges. Further:

Select the object to be extended or [Projection/Edge/Cancel]:

(Select object to extend or:)

You must specify the objects that will be extended to a set of boundary edges, and the point of specifying the object being extended must be closer to the end towards which the extension will be performed. On fig. 3.42 the dotted line shows the arc, which is the boundary edge, and the left extended segment is indicated in its upper part.

If the left segment were marked at the bottom, then the AutoCAD system would issue a message:

There is no edge in this direction.

(Object does not intersect an edge.)

The BREAK command button (Fig. 3.43) breaks the object at two specified points.

Rice. 3.43. BREAK command button

First command request:

Select object:

(Select object:)

Pick an object with the pick point as the first break point. Further:

Second Break Point or [First Point]:

(Specify second break point or:)

Specify the second break point. The result of the operation is visible in the example shown in Fig. 3.44 (on the left side - before the break, on the right - after the break; the points show the sequence of indication).

There may be a case when the point of specifying an object should not be a break point (for example, if there is an intersection with another line at the break point and specifying this point can lead to an incorrect selection of the object to be broken). Then, in response to the request for the second break point, use the option First point(First point), which allows you to re-specify the first break point (without changing the selection of the object):

First break point:

(Specify first breakpoint:)

Pick the first point.

Second break point:

(Specify second breakpoint:)

Rice. 3.44. Breaking objects

You need to specify the second point, and after that the command will be executed.

The CHAMFER command button (Fig. 3.45) performs the trimming operation of two intersecting straight-line segments (segments, rays, straight lines) at specified distances from their intersection point (chamfering), while building a new segment connecting the trimming points. The command is executed on both non-intersecting and non-parallel segments (in this case, the segments are first extended until they intersect).

The CHAMFER command first reports the current state of the modes, and then issues a prompt for selecting an object:

(CUT MODE) Bevel parameters: Length1 = 10.0000, Length2 = 10.0000 Select first line or [Polyline/Length/Angle/Cut/Method]:

((TRIM mode) Current chamfer: Dist1 = 10.0000, Dist2 = 10.0000 Select first line or :)

Rice. 3.45. CHAMFER command button

If the current chamfer parameters (remove 10 mm from each segment) suit you, then you can go directly to specifying the first segment. But most often, you first need to set the chamfer lengths you need. This is done with the option Length(Distance) which issues its request:

First chamfer length<10.0000>:

(Specify first chamfer distance<10.0000>:)

Second chamfer length<25.0000>:

(Specify second chamfer distance<25.0000>:)

Rice. 3.46. Chamfering cuts

Enter the second length - for example 35 mm. The team is done with this. Therefore, you need to call it again (the easiest way is to use the key , which repeats the last command) and in response to a request Select first line or [Polyline/Length/Angle/Cut/Method]:

(Select first line or:) mark the first line. The AutoCAD system then asks:

Select the second segment:

(Select second line:)

Select the second segment to be trimmed. On fig. 3.46 shows an example of chamfering: on the left side, segments are shown before the operation, on the right side - after the operation.

Option pruning(Trim) prompts:

Trim Mode [Trim/No Trim]<С обрезкой>:

(Enter Trim mode option :)

At this point, you need to choose one of two modes. Normal mode - with pruning(Trim). If the mode is selected No trim(No trim) an additional segment connecting the trim points is built, while the original segments themselves, to which the chamfering operation is applied, remain unchanged. The mode setting also applies to the next FILLET command.

Rice. 3.47. Chamfering the entire polyline

Another option for the CHAMFER command is Method(Method). Option Method(Method) issues a query:

Construction Method [Length/Angle]<Длина >:

(Enter trim method /Distance/Angle] :)

The team can chamfer in two ways. The first - in the case of setting the option Length(Distance), when two lengths are given, taken from the segments. The second - in case of setting the option Corner(Angle), when one length and angle are specified, under which an additional chamfer segment is built relative to the first segment. The settings for both methods are stored in AutoCAD system variables CHAMFERA, CHAMFERB (method Length(Distance)) and CHAMFERC, CHAMFERD (method Corner(Angle)). The values ​​of these variables are issued when reporting the current state of the CHAMFER command settings (about system variables, see sec. 11.1). Setting the values ​​of variables in the CHAMFER command is performed using options Length(Distance) and Corner(Angle).

You can also specify adjacent sections of the polyline as segments for chamfering. In this case, the chamfer is removed on both sides of their common top.

Another interesting option is polyline(polyline). With its help, you can chamfer at once at all vertices of one polyline. On fig. 3.47 shows an example of such an operation on a polyline in the form of a rectangle (mode No trim(No trim)).

The FILLET command button (Fig. 3.48) mates linear objects (for example, segments, arcs and circles) with an arc of a given radius. The command in its modes is similar to the CHAMFER command.

Rice. 3.48. FILLET command button

The first message issued by the command contains information about the current settings and a request for the first object:

Current settings: Mode = CUT, Fillet Radius = 10.0000 Select first object or [POLYLINE/Radius/Cut]:

(Current settings: Mode = current, Radius = 10.0000 Select first object or :)

If you are satisfied with the current settings, mark the first object for pairing. Further:

Select the second object:

(Select second object:)

When you specify the second object, AutoCAD will either draw the required fillet arc or report that it cannot fillet with the given radius. On fig. 3.49 shows an example of conjugation of a circle and a segment (on the left - objects before conjugation, on the right - after conjugation). Two adjacent sections of a polyline can appear as mating objects.

Rice. 3.49. Pairing objects

Option pruning(Trim) controls the trimming mode (it is similar to the CHAMFER command). If the mode is selected No trim(No trim), then the mating arc is calculated and built (if construction is possible), and the original objects remain unchanged. If the regime with pruning(Trim), then open mating objects are shortened or lengthened to the start point of the mating arc. On fig. 3.49 the segment on the right has become shorter for this reason.

Option radius(Radius) makes it possible to change the current value of the fillet radius. After setting the radius value, it is necessary to call the FILLET command again and specify the mated objects.

Option polyline(Polyline) allows you to match all the vertices of one polyline with a given radius.

Comment

In previous versions of AutoCAD, the FILLET command could only fillet straight objects.

Last panel button Editing(Draw), corresponding to the EXPLODE command, we have already considered above. It breaks down polylines, block references, dimensions, and other complex objects into simpler objects.

2002 Malinin V.V. - editor
electronic version
2002 CIT SSGA - publisher
All rights reserved.

The next task that we need to solve is the construction of the inner lines of the side walls of the pedestal. Since they are all the same distance from the lines of the outer contour, this can be done using a new tool for you. Similarity. With it, the existing lines will be shifted by 20 units inside the outer outline of the cabinet.

Tool application Similarity takes place in three stages:

» choice of offset value;
» selection of the displaced object;
» select the offset direction.

To perform an offset, do the following:

1. Run the tool Similarity. To do this, select the command from the menu Edit » Similarity or click on the button Similarity panels Change or type in the command window Similarity or simply under. The command window will prompt Specify offset distance or [Through/Delete/Layer] :.

Note. At first, the command window messages will not be very clear to you. This is normal - over time, after gaining some experience, you will begin to not only understand the logic of AutoCAD, but feel it.

2. The meaning of this request is to perform one of the following actions:

» input offset distance from the keyboard;
» selection of two points on the screen, the distance between which is equal to the offset value (mode Through);
» pressing Enter to accept the default offset value (outlined in angle brackets; if the command Similarity has not yet been launched, the current mode of the command is displayed in angle brackets, by default - Through).

3. Modes Erase and Layer teams Similarity are not directly related to the choice of bias, so we will not consider them.

4. Enter 20 as the offset value to go to the second step of the command Similarity. The crosshair pointer will take the form of a marking pointer, and a prompt will appear in the command window Select object to shift or [Exit/Cancel] :.

5. Place the pointer on the right vertical line and click. The selected line will turn into a dashed line (Fig. 2.9), the pointer will again take the form of a crosshair, and a prompt will appear in the command window Specify a point that defines the offset side, or [Exit/Multiple/Cancel]:. This request means that you must specify the offset direction. The direction is selected by clicking in the drawing area on the corresponding side of the line.

Rice. 2.9 Right vertical line selected as origin

6. Place the crosshair pointer on the rectangle that represents the outer outline of the cabinet and click. Since you have set the offset direction (to the left of the offset line), AutoCAD will immediately perform the offset. As a result, a new line will appear inside the rectangular outline of the pedestal, which will be located 20 units to the left of the original one (Fig. 2.10). Instead of a crosshair, a marking pointer will appear on the screen again. This means that the tool Similarity is still active and you can continue to move the lines by the specified distance.

Rice. 2.10 The first line is shifted to the left by 20 units from the original

Note. If you need to complete the execution of the command (for example, to change the offset distance in the case of the command Similarity), just press Esc.

7. Click on the top horizontal line and then again inside the rectangular outline. AutoCAD will offset the second line.

8. Click on the third line, then inside the rectangular path, and then on the fourth line and again inside the path (fig. 2.11).

Rice. 2.11 All four lines are shifted inside the pedestal outline

Note. The offset value remains the same as it was set the last time the command was run. Similarity(in this case 20 units) until it is explicitly changed in one of the subsequent runs of the command.

9. Press Enter to end the tool Similarity. As you may have guessed by now, this tool behaves the same way as the With lines, in the sense that it remains active until the user forces it to quit. So, the inner lines of the walls of the pedestal are built. However, comparing Fig. 2.11 with fig. 2.2, you will see that some of the lines in the resulting drawing are superfluous, and some are missing. We will solve this problem soon, but for now, let's get acquainted with another AutoCAD tool designed to perform object mating.

Before you start drawing, make sure dynamic input is enabled. You can turn dynamic input on and off with the F12 key. If dynamic input is enabled, coordinates are entered in the area next to the cursor. If disabled, coordinates are entered on the command line.

To use object tracking, three buttons must be enabled on the status bar: Polar Tracking, Object Snap, and Object Tracking. The "Middle" and "Endpoint" object snaps must be enabled.

First we build a rectangle. To do this, activate the "Rectangle" tool and click on the screen to indicate the lower left corner of the rectangle (you can also vice versa the upper right), then enter the relative Cartesian coordinate of the opposite corner - 280,200, Enter.

Add chamfers to the rectangle. Turn on the Chamfer tool, right-click, select the option "Length", specify the length of the chamfer in one side 40, Enter, then the length in the second side 40, Enter. Then we build a chamfer. We click on one side, then on the other. Turn on the Chamfer tool again (you can just press Enter), do not adjust anything, click on one side, then on the other.

Now draw an arc centered on the left side of the rectangle. Turn on the tool "Circle" Click the mouse in the middle of the left side. Enter radius 30, Enter.

We make a cut in the left side of the rectangle, then we delete the excess part of the arc, we do everything with "Crop".

Activate the Crop tool. First you need to select all the cutting edges, select the rectangle and circle, Enter, then click on the left side part of the rectangle inside the circle, then on the left half of the circle, Enter.

We create the first such object. Activate the Similarity tool, enter the offset distance - 40, Enter, click on the edge of the figure obtained from the rectangle, click inside the figure.

Now move the copy of the arc to the right. Select the arc, activate the "Copy" tool, click on the point in the upper part of the arc, specify the direction to the right until a dotted line of the tracking trace appears, enter 40, Enter, Enter from the keyboard (you can simply use the "dot" anchor when moving to the right and snap to the corresponding point on the figure obtained as a result of the similarity operation).

You need to make two more similar figures. Activate the Similarity tool, enter the offset distance - 10, Enter, click on the edge of the shape obtained by the Similarity operation, click inside the shape, click on the new shape, click inside, Enter.

On the right of the first shape (the one that used to be a rectangle), you need to delete the right side. This can be done in many ways, for example, using "Crop". Activate the "Crop" tool, click on the edge of the very first shape (the one that used to be a rectangle), Enter, click on the unnecessary segment, Enter.

Activate the "Polyline" tool, snap to the top point of the resulting break on the right, indicate the direction to the right, enter 500, Enter from the keyboard, indicate the direction down, enter from the keyboard 120, Enter, indicate the direction to the left, enter from the keyboard 500, Enter, Enter.

You need to make two more similar figures. Activate the Similarity tool, enter the offset distance - 10, Enter, click on the edge of the last drawn shape, click inside the shape, click on the new shape, click inside, Enter.

We draw two circles. Activate the "Circle" tool, move the cursor to the middle of the extreme right side, do not click, indicate the direction to the left so that other anchors do not work, enter the distance 50, Enter, indicate the radius 20, Enter. Activate the "Circle" tool, move the cursor to the middle of the far right side, do not click, indicate the direction to the left so that other anchors do not work, enter the distance 150, Enter, indicate the radius 30, Enter.

It remains to draw the end of the figure on the right side, consisting of two segments. Let's draw the first segment starting from the top to the lower right corner of the figure. To find the first point, we use object tracking. An additional 45 degree angle must be specified in the polar angle settings. Activate the "Segment" tool, move the cursor to the lower right corner of the shape, without clicking move it to the right and rotate the cursor counterclockwise so that a dotted tracking path appears at an angle of 45 degrees, then move the cursor to the middle of the right extreme side of the shape, without clicking move the cursor to the right , to make another dotted tracking path appear, move the cursor until it intersects with the first tracking path at a 45 degree angle. When a cross appears that does not intersect two tracking traces, click the left mouse button. We bring the cursor to the lower right corner of the figure, when the "dot" anchor appears, click Enter. Activate the "Segment" tool, snap to the end of the previous segment using the "endpoint" object snap, move the cursor to the upper right corner of the figure, when the "endpoint" anchor appears, click.