Joints

Use the Joints tool to connect parts together using pins or sliding pins. Pins allow two parts to rotate around the pin's axis. Sliding pins allow rotation and sliding along the pin's axis. You can search for single or aligned holes and create joints in all of the selected holes as a group, or you can select holes and create joints individually. This tool can be accessed by clicking the Structure tab on the ribbon.

nspire automatically finds holes within a default size range that is calculated based on the geometry of your model. Click the bolt_find_options icon on the guide bar and select Options to specify a different range. You can also select and deselect individual holes by holding down the Ctrl key and left-clicking on the hole.

Select Pin or Sliding Pin on the guide bar, then click Connect All to automatically create that type of joint in all of the selected holes. You can also create joints individually by clicking on selected holes. Pins and sliding pins impart different loads that will have an impact on the analysis and optimization calculations.

Open the options below for detailed instructions.

To find holes where joints can be created
  1. Select the Joints tool.
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  2. A guide bar appears and the find operation is executed automatically. By default, the tool automatically finds aligned holes and displays them in red. The total number of holes is displayed in a counter above the Fasteners tool.
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  3. To find single holes, change the filter on the guide bar to Single Holes. The results are automatically updated.
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  4. To filter the results by hole size, click the bolt_find_options 4 icon on the guide bar.
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    • Select Options and enter a range, or
    • Click the 6 icon to deselect all holes, select a reference hole in the modeling views, then select Find Larger, Find Smaller, or Find Similar from the drop-down list.
  5. To see where all of the holes are located, use the arrow keys on either the guide bar or your keyboard to pan your model from one hole to the next.
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  6. To change which holes are selected individually:
    • Left-click a single hole to select it. The hole turns red.
    • Double-click a hole to chain select a group of aligned holes. The holes turn red.
    • Hold down the Command key and left-click to deselect a hole.
  7. To clear the selected holes and start over, click the 8 icon to deselect all holes and then click the Find button on the guide bar.
To create joints automatically
  1. Select the Joints tool.
  2. A guide bar appears and the find operation is executed automatically. Use the options on the guide bar to change the size and type of holes that are found. The total number of holes is displayed in a counter above the Joints tool.
  3. By default, the tool will automatically place a pin in all of the selected holes when you create joints. If you want to create sliding pins instead, click Pin on the guide bar and then select Sliding Pin.
  4. Click the Connect All button on the guide bar to create the joints.
  5. Right-click or press Esc to exit the tool.
TO Create joints manually
  1. Select the Joints tool.
  2. A guide bar appears and the find operation is executed automatically. Use the options on the guide bar to change the size and type of holes that are found. The total number of holes is displayed in a counter above the Joints tool.
  3. To clear all selected holes, click the bolt_clear icon on the guide bar.
  4. To select and deselect holes individually:
    • Left-click a single hole to select it. The hole turns red.
    • Double-click a hole to chain select a group of aligned holes. The holes turn red.
    • Hold down the Command key and left-click to deselect a hole.
  5. By default, the tool will automatically place a pin in all of the selected holes when you create joints. If you want to create sliding pins instead, click Pin on the guide bar and then select Sliding Pin.
  6. Click on a selected (red) hole to create the joint. A microdialog appears, allowing you to change the type of joint from a pin to a sliding pin and vice versa.
  7. Right-click or press Esc to exit the tool.
To edit a joint
  1. Select the joint(s) you want to edit.
    • If the Joints tool is active, single-click the joint(s) you want to edit. Hold down the Ctrl key or use box selection to select multiple joints.
    • If the Joints tool is not active, double-click the joint(s) you want to edit.
  2. A microdialog appears, allowing you to change the type of joint from a pin to a sliding pin and vice versa.
  3. To ground a joint, use the Supports tool. Supports will be placed at both ends of the joint.
  4. Right-click or press Esc to exit the tool.
To edit a joint
  1. Select the joint(s) you want to edit.
    • If the Joints tool is active, single-click the joint(s) you want to edit. Hold down the Ctrl key or use box selection to select multiple joints.
    • If the Joints tool is not active, double-click the joint(s) you want to edit.
  2. A microdialog appears, allowing you to change the type of joint from a pin to a sliding pin and vice versa.
  3. To ground a joint, use the Supports tool. Supports will be placed at both ends of the joint.
  4. Right-click or press Esc to exit the tool.

Guide Bar Options

The Joints tool automatically finds and selects all holes that meet certain search criteria and highlights them in red. Use the guide bar to change the size and type of holes that are found and the type of joint that will be created.

Joint Find Click Find on the guide bar to find and select holes. The find operation is performed automatically when you first activate the tool, but you can click this button to redo the operation after making changes.
Joint Find Options Click this icon on the guide bar to open a drop-down menu that allows you to find holes that are smaller, larger, or similar (±5%) in size to selected holes. Click the Options button to specify a size range for the diameter.

By default, the Joints tool automatically finds existing geometry in holes, hides it, and deactivates it so that it is not included in analysis or optimization calculations. Deselect Find Parts in Holes to disable this behavior, in which case you will need to delete the existing geometry manually.
Joint Aligned By default, the tool finds Aligned Holes between neighboring parts. Click the button to switch to Single Holes instead.
Joint Arrow Keys Use the arrow keys on the guide bar or your keyboard to pan to the Previous or Next selected hole.
Joint Clear Click the Clear Selection button to deselect all holes.
Joint Auto Click this button to change the type of joint from pin to sliding pin or vice versa.
Joint Fasten All Click the Connect All button to create fasteners of the selected type at all selected hole locations.