How to create 3D elements for Components? - Visionics Support Desk
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 How to create 3D elements for Components?
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How to create 3D Components?

• Open the package of the 3D to be created, say DIP 14/300, in the Package Editor.

• Evoke 3D Editor from Edit menu of the package editor. Package Editor gets depicted in 3D mode. The 3D workspace is displayed with three perpendicular axes and a default board containing the outline of the DIP14/300 package as shown in figure below.

• Select Open 3D Elements Library function tool for selecting pre fabricated 3D elements from 3D elements library. Choose the required element from the list and click on Accept button or double click on the selected item. The system will place the selected element in the graphical area of the 3D editor for further editing.

Or

1. Select the Function tool Create 3D Graphic Item / Select the Option tool Create Rectangular Bar.

Note : The option tools With Bottom surface, With Top surface and With Side surface(s) may be enabled to get a solid 3D package.

2. Click anywhere in the workspace, a rectangular bar will be placed with the center of its base placed on the intersection of the 3 axes. The rectangular bar will appear highlighted to indicate that the present focus is on it. Relocation and stretching may be carried out here. By default the Function tool Relocate 3D item gets enabled.

3. The rectangular block has to be relocated and stretched to fit in the area .The height of the rectangular bar should be set to the height of the body of the DIP14/300 package (this data is available in the datasheet). The height can be set in two ways. a. Stretch the item to the required height. b. Enter the height in the Property window of the Rectangular bar.

4. Relocate the bar. Relocation of the block may be achieved by placing a contact point. A contact point is by default placed on the intersection of the 3 axes. To move the axes to a desired point press SHIFT and click in the direction where it has to be placed.

5. After moving to the desired location press Finish Relocation(F6).

6. Change the height of the rectangular bar according to the value given in the datasheets.

7. Stretch the bar to fit on the component outline

8. Create the circular patch in the package by loading a semi-cylindrical bar from Create 3D Graphic Item.

9. Elevate the body of the package (both the rectangular bar and the semi-cylindrical bar) by around 15/20 mils (.015”) above the board. This can be done by entering this value in the Properties Window (adjust the Z position).

• Similarly select prefabricated Pin from the 3D Element Library.

Or

Create the pin using 3D Library tools, a pin which is as shown in Figure below can be created.

This can be derived from a semi-circular strip by stretching its vertices and edges.

1. Load a semi-cylindrical strip on the workspace and move it to a distance away from the other items -> Finish Relocation

2. Set the height of the strip to around 0.055”. This will be length of sides bc / ad etc.

3. Set the number of vertices to 8.

4. Angle B = 90

5. Z Rotation = 90

6. X Rotation = 90 Now the item will look like as shown in figure below.

6. Once all the settings are made, the semi-cylinder can now be turned into a polyshape so that its edges and vertices can be stretched.

7. Select the Function tool Convert 3D item to Polyshape and click on the semi-cylindrical strip.

8. Creation of face “abcd”- Refer the picture of the pin. The length of ‘ab’ is .025”. As a rule of thumb, selection of edges is easier in Perspective View and setting dimensions in 2D views, like From South. Select Stretch item and select the first edge. Now select tab Edit Views in the 3D-view control and select From South. Now move the vertex such that it coincides with the adjacent vertex.

9. After the two coincide, select a Snap value of “ab” i.e. .025”, press Shift key and click in the positive x-axis. Press Finish stretch. The face “abcd” of the pin is formed.

10. Creation of face “efgh”. - Select the edge “gh” in Perspective Default View in 3D View Control and then move to the Edit Views -> From South view. First merge the two edges and then select a snap of .065” (the distance separating the edges ef and gh) and click on the negative z axis to complete creation of the face “efgh”.

11. Creation of face “ghij” and “ijkl” .Select the edge “ij” and merge it with edge “gh” using the same method mentioned in the above steps. Now select a Snap value of 0.065” (distance separating the edges ij and gh) and click in the negative z axis. Repeat the same procedure for the face “ijkl”.

12. As shown in the picture, the length of “ij” is lesser than that of the other edges (0.018”). To set this move to the Perspective Default View in 3D View Control and select the vertex i. Now stretch it along the y axis to a desired position. Press Finish Stretch. Repeat the same procedure with the vertices k and l.

• Now repeat the pins for the rest of the package and place them in the pad holes in the 3D board of the editor to complete the 3D package of DIP14/300. You can easily repeat the pins by using Step repeat Object from Repeat 3D Object function tool. Select Step repeat Object and click on the 3D object that is to be repeated. On the window that pops up specify the steps of repetition and the dX , dY & dZ displacements between adjacent steps.



Article Details
Article ID: 58
Created On: 04 Nov 2009 2:57 PM

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