Furniture design software DESIGN SINTEZ

Creation of nonstandard units


Opens together with the main form with primitives and contains auxiliary operations for processing and positioning of objects (primitives, elements) in the drawing. It can be put in each frame of the working screen. If you have closed the toolbar by accident, open again New unit construction.Confirm the message, that the program module is already open to open the toolbar again.

Back to the form

back- Opens the form New unit construction keeping the made in the drawing changes.

Rotation Rotation- Twists objects about a point. Choose an object. Specify a base point for rotation of the object. Enter an angle of rotation in AutoCAD command line (this angle concerns to the current object position). You can set an angle, moving of the cursor, at which one copy of the object will be dragged after the cursor. If the button ORTHO in the AutoCAD status bar is turned on, then the object can be rotated only on 90 degrees in all directions.

Unites objects
Union- Creates a combined area or dense body (solid) from two or more areas or solids. Irrespective of the objects number , which you unite, the received body get a layer of the first selected object. Specify consistently those objects, which you want to unite and press the right button or key Enter. The objects must be areas or 3D solids and, to have crossed (sections) or tangential parts, that can be united.

Internal cutting
internal cutting- Cuts out the crossed surface of an area or the volume of a dense body (solid) with other like it. Choose areas or dense solids, from which you want to cut out.Then choose objects, which are crossed with them.Sequence of the operations:

  1. Specify with the left mouse button the object (1), which has to be cut out and then press the right button or key Enter from the keyboard.
  2. Specify with the left button object (2), which is crossed with object (1) and click the right button or key Enter.
The result is object (1) with volume of the crossed area with object (2) . If you use the opposite sequence of selection, you will cut out object (2). The operation works with 3D solids only .

Cuts out section
cut-Creates area or solid got from the section of overlapped surfaces, or volumes of  two or more areas or bodies. Select consistently with the left button the overlapped areas (2D) or dense bodies (3D). Press the right button or key Enter to cut out section. Remains only surface or volume which is common for the chosen objects. The rest is deleted. Use only same objects (2D or 3D).

Create area
Create area-Creates object "area" representing a closed two dimensional surface. Choose consistently, using the left button of the mouse those objects, which you want to unite in area. Then press the right button to unite them. You can specify closed polylines, linear segments, circles, ellipses and splines. You can not use objects, which are not in one plain, but are only crossed (as for example figure "8").

Creates a three-dimensional body
extrude- Extruding of 2D primitives. Creates simple 3D body by drawing out (on a direction of an axis Z) existing closed 2D objects. The control of operation is in AutoCAD command line .The execution of operation does not depend on the position of the coordinate system.
Select objects:Choose object or objects - closed polylines, circle, polygon and etc. Do not select objects, which are crossed (as for example figure "8"). Use the right button to finish the choice of objects.
Specify height of extrusion or [Path]: -AutoCAD requires from you to define extension (depth) of the future 3D body, using movement of the mouse. It can be made by entering of numeric value (0.60) too, answering to the needed thickness of a material, which you create. If you enter negative value, you will get similar effect of thickness, but on the opposite direction on Z.
Specify angle of taper for extrusion 0: - The program asks about an angle of narrowing at the extension of the body. If you press Enter,it acceptes the value by default (0 degrees). You get a stretched (dragged out) figure, which walls are perpendicular to the plain, in which is located the original object . You can set an angle of narrowing between 0 and 90 degrees, at which the walls are inclined inwards. If the angle is between 0 and (-90) degrees, the walls are inclined outwards.

Draws spline
draw line- Uses a sequence of points as a basis for construction of a smooth curve. The management of operation makes in the AutoCAD command line.
Specify first point or [Object]: - Specify the start point, which you can snap to a point from the other object.
Specify next point: - Specify next point.
Specify next point or [Close/Fit tolerance] start tangent: - Specify next point, drawing a curve on the basis of the two previous. You can write Close or only C and to click on Enter. The third curve will contact to first and will create an irregular circle.
Specify start tangent:
- Press Enter
Specify end tangent:
- Press Enter
After drawing of the spline, mark it. Use its manipulation points to change its contours or to snap it to other object.

Creates a mirror copy of the object

Mirror- Mirror- The control of the operation makes in the AutoCAD command line. Choose object or objects, on which you  want to create a mirror copy and click the right mouse button or Enter.

Specify first point of mirror line: - Specify start point for rotation of the copy.
Specify second point of mirror line: -Drag out and make rotation, using the mouse, about the first point to choose an angle of rotation. Press the left button for the second point.
Delete source objects? [Yes/No]:. - If you answer with Y and press Enter the original will be deleted, keeping on the screen only the copy. By default active is N. If you want to keep the original, press Enter.

Change of objects sizes (scaling) resize- Choose one or some objects from the project (use the left button of the mouse). The right button or Enter confirm your choice. Specify in the drawing an index point to begin scaling. Then enter the scale factor. By default the factor value is 1. If you enter value= 2, then the chosen objects will increase their sizes 2 times. The values less than 1 decrease the overall dimensions of objects proportionally. The operation is used for 2D or 3D primitives.

Explode - splitting on components explode- Divides units (blocks) and others 2D or 3D objects on their component parts. Choose an object from the drawing and click on the button. Depending on its  kind the chosen object (2D, 3D or unit) will disintegrate on its constructional primitives. The result is a complete set of untied 2D primitives.

Fillet angles
fillet- Fillet angles got from crossing of lines. The control of execution of the operation makes in the AutoCAD command line. The syntax of parameters and commands differs for different groups of primitives. In a concrete example is used a 3D dense rectangular body (3D solid). Similarly at 3D arch or ellipse

For 3D Rectangular form, 3D Cylinder, 3D Wedge, Created 3D Arch, Circle, Ellipse


Current settings: Mode = TRIM, Radius = 0.00 - The option TRIM cuts lines for creating of an elegant rounding , but  if you change the parameter to NoTRim, after the end of operation the lines will be kept. The option Radius sets radius for the future chamferings. Activation of this option interrupts execution of the command. These two options keep the last entered parameters and applies them by default until you don't make changes.
Select first object or [Polyline/Radius/Trim]:
- Choose (specify) object or part from it (line).

Enter fillet radius: 0.05 - Offers the last entered radius for a chamferring of angles by default . Radius is equal to the half of the distance between two lines (angle) calculated on a direct line. For example, if the element will be a worktop and you need to chamfer its one side only , it is necessary to enter as value of radius for chamferring half  from the  thickness of the worktop. The worktop has thickness 4 cm.. You must enter 0.02 (meters) for the maximal rounding or 0.01 (m ) for smoother rounding. If value by default in the concrete case is a suitable, confirm it with Enter.


Select an edge or [Chain/Radius]: -Expects from you to specify the following object or part of it (line). The second line must not be an element of filleting (ellipse curve). You can use each of primitive's lines . For not next lines, laying in different plains, you will get  two corners simultaneously.


The chamferred corner will  looks like this. You can fillet and the others angles of the primitive. If one of the ends of the  primitive is an ellipse or arch (3D), and  the rest part - rectangular form, the rounding  must be done separately - for an arch and for a rectangular. Then unite them.

2D Lines

lines lineslines

The operation is similar to the 3D primitives. At first specify one line and then another. Fillets the closest angles, drawing an  imaginary circle on the endmost points of the  lines, which will not be rounded. Radius is used by default  (based on the last executed entering ) and if it exceeds the radius of the described imaginary circle, you can not choose the second line. In such case when you see the message:

Current settings: Mode = TRIM, Radius = 0.09

Select first object or [Polyline/Radius/Trim]: ( Enter R) and enter new value of the radius equal  to the half of the distance on Y between the two end points of lines (most remote one from another). After that activate operation on chamferring again.

Examples for 2D Lines, 2D Arches, 2D Circles

Selection      -    Result

Selection    -         Result

selection result

selection result

Chamfer angles
chamfer- Chamfers the top (angle) between two crossed lines (or nearly so crossed) at 2D primitives or plain (at 3D primitives). You can chamfer all 2D and 3D primitives. The control of the operation makes in the AutoCAD command line. The syntax of operation differs for 2D and 3D primitives.

For 3D Rectangular form, 3D Cylinder, 3D a Wedge, Created 3D Arch, Circle, Ellipse


(TRIM mode) Current chamfer Dist1 = 0.02, Dist2 = 0.01 - Current (last entered) values for distance from the crossing point to the beginning of chamrerring of two lines, which close  a plain. The row has only informative character.

Select first line or [Polyline/Distance/Angle/Trim/Method]: - Expects from you to choose a plain for chamferring.


Enter surface selection option [Next/OK (current)] OK: - Press Enter to confirm a choice of plain. OK - confirms, Next - chooses other next plain.

Specify base surface chamfer distance 0.02 : - Enter a value of a base line, closing the  plain, from which it is necessary to begin the chamferring. The value must not be bigger than the size of the plain between the two closing it straight lines.
Specify other surface chamfer distance <0.01>:
- Enter the size for chamferring of the second line. The value takes from the size of the adjoining plain to the subsequent choice of the second line.


Select an edge or [Loop]: Select an edge or [Loop]: - Expects from you to choose (specify, using the left mouse button) the second line (adjoining plain) for chamferring with value of the entered second size. After selection press Enter to confirm and to begin the operation execution.


So the result  of chamferring will look like this when the parameters are: distance between two lines in plain is 0.02 m. and entered values for the first line are 0.02 and for the second line - 0.01. If you want to make an opposite chamferring, specify the second line.

(Select an edge or [Loop]: Select an edge or [Loop]:) choose the other (bottom) line, which close the plain.


To  get chamferring of a part from the plain at distance between the two lines of plain 0.02 m., enter the following values for the first and second line.

Specify base surface chamfer distance: 0.01 -  for the first line, not less than distance between the two lines.

Specify other surface chamfer distance <0.01>: 0.03 - for the second line

For complete chamferring, which begins directly from the first base line, enter for value of the first line the full size of plain between the two lines closing it.


To get chamferring for all adjoining plains simultaneously, if the distance between the two lines of the plain is 0.02 m., enter the following values for the first and the second line.

Specify base surface chamfer distance: 0.005 - For the first line, it is less than the half on the appropriate axis or one quarter from the distance between two lines.
Specify other surface chamfer distance <0.01>: 0.03
- For the second line - less than half on the appropriate axis or one quarter from distance between the two lines.

Select an edge or [Loop]: - enter Loop or L

Select an edge loop or [Edge]: - specify the plain again

For 2D Lines and rectangular forms

(TRIM mode) Current chamfer Dist1 = 0.02, Dist2 = 0.05
Select first line or [Polyline/Distance/Angle/Trim/Method]:
- Specify the first line.

Select second line: - Specify the second line.

chamfer line chamfer linechamfer line

First line             Second line          Result


Distance - Defines the distance from a point of intersection to the beginning of the  chamferring . The first distance concerns to the first chosen line, and the second distance - to the  second. To get symmetric chamferring on the top, the two distances in the corner must be equal.

chamfer angle chamfer angle

Polyline - Chamfers all tops of a polyline (edits each angle).

chamfer polyline chamfer polyline

The start of operations of edition the parameters of chamferring interrupts operation. The execution of operation requires to open it again.

Examples for construction of the elements of an unit

Example 1


  1. Create primiive 2D Broken line (three lines in - figurative shape, without height).
  2. Draw an arch (use a primitive 2D Arch) and snap the two edges of an arch at the end of the open broken line.
  3. Use the manipulation point in the centre at top of an arch to specify the needed filleting.
  4. Use an icon create area- Create area in the toolbar, specify the broken line and the arch for union in one area.
  5. Use an icon 3D object-Create 3D object in the toolbar. Select the created area and enter a value for the thickness of the new 3D object.

Example 2 - Creation of 2D primitive from continuous lines and arches with the sizes on X = 26 cm., on Y =58 cm.

example 2

  1. Create four lines without height  in the window 2D Broken line.
  2. Enter into the fields for a point 2 the distances to point 1: on X=26, on Y =0.
  3. Enter distances in relation to point 1 into the fields for a point 3: on X = 26, on Y = 44,
  4. Enter distances in relation to a point 1 into the fields for a point 4: on X=0, on Y=44.
  5. Check the option Line into the field Draw primitive . It will change on "arch" (line 1 becomes an arch).
  6. For line 1 - Change the value into the field Radius of an arch in % in relation to the length of a line on 0.5
  7. Check the field Draw primitive  line 3 to become an arch. (look p. 5)
  8. For line 3 - Change value into the field Radius of an arch in % in relation to the length of a line on 0.5.
  9. Check the option Close area.
  10. Press the button Set
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