CAD Introduction

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CAD Introduction Version 7.3

MTS Mathematisch Technische Software-Entwicklung GmbH 2009 Kaiserin-Augusta-Allee 101 - 10553 Berlin - (030) 34 99 60 0

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1. Short introducion for TOPCAM / CAD part

1.1 Description Managment System / Libraries Interface for export & import of DXF format

DXF- Datei dxf edit and convert

Symbol library

1.2 Description Managment System / NC Programms - Maschine anwhlen z. B. MACHINE MTS VMC-024_ISO30_-0500-0400x0450 or MTS VMC- X0550X0500-IS030-TNC 426K

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1.3. Description drawing files

- the TOPCAM drawing files have the extension < *.edu > - edit of a file

- select file - open the file

1.4. Description Configuration drawing

- a standard drawing can be set as < base drawing >

function convert, delete, move, copy refered to a dxf or edu file

Define a new file e.g < PLATE >

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1.5. Description of the Ikons

General functions:

Entities:

line horizontal vertical parallel parallel in distance rectangle arc circle text

input relativ values (normally is absolut) diameter input (for turning) marc contur points

contour type (auxilliary lines) information about any element distance between 2 points

Zoom functions

zoom next window previous window fit redrawing erase move edit text

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Modify layer Contour tracing trimmng

Trap functions (snap)

trap off automatic contour points grid points middle points projection points intersection points centre points end point special trap points

Pulldown menus

main menu

entities edit design

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screen dimensioning atributes layer

x

Help functions help

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2. EXERCISE : Construction design for milling

Draw a plate which is to be milling

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Working step : Design of a drawing " PLATE "

step menu drawing Open a new drawing with the name " PLATE "

1. define rectangles

- numeric input with keyboard X = -50 Y = -50 X = 50 Y = 50

- clic < Fit >

- define other rectangle: X = -35 Y = -35 X = 35 Y = 35

- define other rectangle: X = -30 Y = -30 X = 30 Y = 30

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2. rounding of the rectangle corners

- identify polyline vertex

- input = 10

- input = 15

3. Define circle

Input. center circle X = 0 Y = 0 Radius = 10

Input X = 40 Y = 40 Radius = 4

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4. Define center lines /horizontal and vertical

and auxiliary tappig line

Numeric input: horizontal: SP= X-35/Y = 0 EP= X35 SP= X+32/Y= 40 EP= X48

vertical: SP= X0/Y = 38 EP= Y-38 SP= X+40/Y= 47 EP= Y32

circle centre circle : X40 Y40 radius 5

5. Change attributes of the centre lines

Line type Change all corresponding contour lines into center and tapping lines:

- pull down menu Atributtes - modify line type - identify the entity - select line type 7 (long dash, short dash)

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Design of 4 holes

- Edit menu - Define window

- select a group of elements

- back - design menu - multiply / mirror X and Y axis

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Design of the cross section:

remarks:

-use auxiliary lines (horizontal and vertical)

- use contour lines

Design of the cross section:

- contour tracing

- hatch

-delete all the auxiliary lines

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Dimensioning:

Complete the drawing!!!