DesignSpark Mechanical Online Help

Threads

Use the ThreadTexture created on the surface of a cylinder, cone, or hole using the Annotation tools. tool to create a threaded surface on any cylinder, cone, or hole. Select a thread edge or face to view its properties in the Properties panelArea of the user interface that displays editable details about the selected object(s). This panel is initially displayed on the lower left side of the screen, but can be moved..

The depth of a threaded blind hole on a curved surface is defined as the measured distance from the end of the thread to the closest point on the outer contour of the thread.

To create a threaded surface

1. Click the ThreadTexture created on the surface of a cylinder, cone, or hole using the Annotation tools. tool in the AnnotationInformation you can add to a drawing, such as notes, dimensions, geometric tolerances, center marks, and Bills of Materials. ribbon group on the Detailing tab.

2. Click the edge of a cylinder, hole, or cone.

   The threads are indicated as a spiral, not circular, texture on the surface, and the thread depth is shown when you view the threaded object in Section modeSee SectionDesign2D or 3D model that contains at least one top-level component. mode in which you edit solids by working with their edges and vertices in cross-section. ViewOrientation settings that you can apply to your design, including spin, pan, and zoom. You can adjust these settings individually or you can apply one of the following preconfigured views: Trimetric, Isometric, Top, Bottom, Front, Back, Right, Left. You can also select Snap View and click a face to view it head-on. is cut away to show interior detail.. An inner thread or outer thread object also appears in the Structure treeDisplay in the Structure panel that shows you each of the objects in your design. You can expand or collapse the nodes of the tree to view the objects. You can rename objects, create, modify, replace, and delete objects, as well as work with components.. (Broken threads appear with a small yellow triangle over the icon.)

3. Click the surface to edit the properties of the threaded surface in the Properties panelArea of the user interface that displays editable details about the selected object(s). This panel is initially displayed on the lower left side of the screen, but can be moved..

   • Type: Controls whether threads are selected from a table or entered manually. For cylinder threads, select Standard to select values for the other properties from a drop-down list. The most likely values are selected by default (next smaller size for external threads, and the next larger size for internal threads). Select Custom to enter offset values. For tapered threads (threads made on conical surfaces) you can only use the OffsetDistance an edge, segment, or curve is moved or copied. option.

   • Series: You can select ISOInternational Organization for Standardization standards for architectural and engineering drawing, including guidelines for dimensioning and tolerancing. You can customize the style of your annotations to conform to ISO standards. See ASME, JISJapanese Standards Association standards for technical drawings. You can customize the style of your annotations to conform to JIS standards. JIS defaults are the same as ISO, except that JIS uses third-angle views while ISO uses first-angle views. See ASME, ISO.. or UNC.

   • Size: Select from a list of available sizes in the series you select.

   • ThreadTexture created on the surface of a cylinder, cone, or hole using the Annotation tools. Depth Type: Can be Blind or Full ThreadTexture created on the surface of a cylinder, cone, or hole using the Annotation tools.. Full ThreadTexture created on the surface of a cylinder, cone, or hole using the Annotation tools. is the default for through holes and Blind is chosen automatically when the thread placement cylinder or cone ends in a plane at a convex edge.

   • Minor Diameter: The smallest, or inner, diameter of a thread.

     
     

      

   • Major Diameter: The largest, or outer, diameter of a thread.

     
     

To change the depth of a threaded hole

1. Click on the thread edge or hole in the Design windowArea in the user interface that displays your model or assembly. Also known as Workspace. or select the thread in the Structure treeDisplay in the Structure panel that shows you each of the objects in your design. You can expand or collapse the nodes of the tree to view the objects. You can rename objects, create, modify, replace, and delete objects, as well as work with components..

2. Press the Tab key or click on the dimension field.

3. Type a new value for the depth.

To customize the thread properties

The thread data XML files that drive the drop-down menus for Standard thread properties are located in the DS Mechanical LibraryYou can select from the Materials Library in the Properties panel and add them to your Local Materials./Threads directory. You can:

• Add files to the directory to display the name in the Series property drop-down when you click the threaded surface with the ThreadTexture created on the surface of a cylinder, cone, or hole using the Annotation tools. tool. Remove files to remove them from the property.

• Add rows to an individual file to display them in the Size property drop-down. Remove rows to remove them from the property.

• Specify a different directory for thread files by adding a different directory to the support file options.

This is an example of the XML file used for threads:

<?xml version="1.0" encoding="utf-8"?>
<thread:ThreadSizeTable xmlns:thread="http://www.spaceclaim.com/threadSizeTableVersion2">
<thread:Units>in</thread:Units>
<thread:ShowThreadDesignationInDiameterDimension>false</thread:ShowThreadDesignationInDiameterDimension>
<thread:ThreadSizes>
<thread:ThreadSize>
<thread:Name>1 - 64</thread:Name>
<thread:Size>0.073</thread:Size>
<thread:MinorDiameter>0.0544</thread:MinorDiameter>
</thread:ThreadSize>
</thread:ThreadSizes>
</thread:ThreadSizeTable>

To use the example above,

1. Copy the text inside the gray box and paste it into a text file.

2. Save the file with a .xml extension in the SpacClaim LibraryYou can select from the Materials Library in the Properties panel and add them to your Local Materials./Threads folder.

   For example, your file could be named MyThreads.xml.

3. Change the text shown in red to your values.

You should add your own custom files instead of changing the default files.