cimco cnc-calc 2 tutorial 4

7/30/2019 CIMCO CNC-Calc 2 Tutorial 4

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CNC-Calc v2 Tutorial 42D construction with mirroring

W h e n R e l i a b i l i t y M a t t e r s

DenkoDizayn CAD/CAM/CAE zmleri

http://www.e-denko.com

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Introduction

CNC-Calc v2 Tutorial 42D construction with mirroring

This is a step-by-step tutorial that demonstrates how the 2-dimensional part,

illustrated above, can be drawn in CNC-Calc. Since the part is almost symmetrical

around the Y-axis only one half needs to be drawn. The other half emerges from

mirroring. This is one of many ways in which this part can be created.

This tutorial demonstrates use of the following functions.

Draw a circle with a given radius defined by its center. Draw a horizontal line defined by endpoint and length.

Draw a vertical line defined by endpoint and length.

Draw a polar line defined by end point, angle and length.

Draw a line tangent to a circle under a given angle.

Draw a line tangent to two circles.

Trim a part to another part.

Connect and fillet with a given radius between two parts.

Mirror parts about a given line.

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Before you start

The first thing to do before drawing a new part is to set the menu parameters. Start

Cimco Edit v5 and select Setup > Show Toolbars. Make sure all toolbars are

displayed as shown in the image below. Toolbars can also be displayed or hidden byright-clicking on the toolbar area.

To make a new drawing

you must click on CNC-

Calc and then select New

Drawing.

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The following screen should now be displayed.

Note: If you hold the cursor over an icon a short description of its functionality will

appear.

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Draw the geometry

Draw a horizontal line defined by endpoint and length

1. Click on in the toolbar and enter the values

specified in the image (0, 0, -40).

2. Click on , bottom right, to approve the

command.

Note: If you want to undo a command click on

in the toolbar.

Draw a vertical construction-line

1. Click on in the toolbar and enter the following values.

a. Start Point Of Line X = -65

b. Start Point Of Line Y = 0

c. Line Length = 180

2. Click on the to approve the command and insert the line.

Draw a circle with radius 12.5 defined by its center


specified in the image: (0, 167.5, 12.5)

2. Click on to approve the command.

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Draw a line defined by one endpoint and polar coordinates (angleand length)

Activate all snap-functions by clicking the Enable All Snap Types in the CNC-Calc

menu.

1. Click on and change the default values to the following:

a. Line Angle = 120 (180 - 60)

b. Line Length = 50

2. Move the cursor towards the right endpoint of the horizontal line. The cursor

will snap to the endpoint as it reaches the end of the line.

3. Left-click on the point to transfer the point coordinates to the Polar Line

dialog to the right.


Adjust the geometry to the screen

1. Click on in the toolbar or press the mouse wheel. This will adjust the

drawing view to fit the geometry.

2. Make more room around the construction by clicking a couple of times on .

Zooming in and out can also be done using the mouse wheel.

3. By clicking you can specify your own drawing view by dragging out a

zoom window.

4. Move the drawing view by moving the mouse while holding down the right

mouse button.

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Fillet and trim with radius = 6

We want to make a curve with radius = 6 and trim the angled line to the left

construction line.

1. Click on in the toolbar and enterFillet Radius = 6.

2. Click on the center of the angled line and then on the construction line a bit

over the line intersections.

3. All the possible solutions will now appear on the screen. Simply point and

click on the one that indicates the correct fillet.

4. In the same way we now click on the center of the lower horizontal line and

then on the angled line. The possible curves appear (Radius = 6) and we

simply select the arc you wish to keep.

Draw a vertical construction line


specified in the image


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Draw a line tangent to a circle with a given angle and length


specified in the image

2. Click on the arc in the fillet between the left

vertical construction line and the angled line.

3. The possible solutions appear on screen. Select

the top right solution.

Trim two elements at intersection

1. Click on in the toolbar.

2. Click on the upper half of the left arc. Then click on the lower half on the

latest of the angled tangent lines. Note that for arcs trimming is executed by

extending the half of the arc that is selected.

3. Trim the angled line to the right construction line.

Draw a polar line

1. Click on in the toolbar and change the default

values in the dialog to:

a. Start Point Of Line X = -30

b. Start Point Of Line Y = 82.3942

c. Line Angle = 135

(90 + 45 =135)

d. Line Length = 50

2. Make sure Snap to endpoints is on.

3. Move the cursor over the right endpoint of the

trimmed 45 line.

4. Click when the cursor snaps to the point endpoint position is updated in the dialog.

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1. Click on in the toolbar and enterFillet Radius = 8 in the dialog.

2. To create a curve between the two angled lines we click on the center of the

lines.

3. From all the possible solutions select the one to keep.



2. Create a curve with radius = 10 and trim the topmost of the angled lines withthe left vertical construction line. Click on the angled line and then on the

upper half of the left vertical construction line.

3. From all the possible solutions you select the one to keep.

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Draw a line tangent to two circles

1. Click on in the toolbar

2. Click on the arc with radius = 10 and then click on the topmost middle circle.


Trim two elements at intersection


2. Click on the upper half of the left arc. Then click on the lower half on the

latest of the angled lines.

3. Click again on the line and then on the topmost right part of the circle with

radius = 12.45.

Delete the construction lines


2. Click on the two unwanted vertical lines

Draw a vertical construction line


2. Click when the curser snaps to the right endpoint

(0,0) of the lowest horizontal line.

3. EnterLine Length = 200 in the dialog.


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Trim one element


2. Click on the left half of the topmost curve and then on the latest constructionline.

Mirror elements using a mirror line


Notice the comment, which has appeared in the bottom left corner of the

screen. In this case: Select the mirror line to mirror about.

2. Click on the vertical construction line.

3. Click and hold the left mouse button to draw a window, which covers all the

elements.

4. Click on in the toolbar to center the drawing area around the elements.

Delete the construction line


2. Click twice on the vertical construction line (the construction line has been

mirrored about itself).



2. Create a curve with radius = 12 and trim the two 45 lines to the right. Click

on the two angled lines.



5. Delete the unwanted arc.

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Join two elements


2. Click on the two halves of the topmost circle.

3. Click on the two halves of the lowest horizontal line.

Note: These actions might be unnecessary for the drawing, but if you later on

wish to create toolpaths, based on the geometry it is an advantage. Otherwise two

blocks will appear in the NC-program.

4. Your screen should now look as the one below.

Name the file and save it

1. Click on Files Save As in the top menu.

2. Give the file a name: CNC-Calc_Tutorial_4. The file will automatically be

given a file extension (.cdd).

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cimco cnc-calc 2 tutorial 4

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