A Rack is a Linear-Gear. The Rack can drive, or be driven by, a Pinion. The Rack has a linear motion and the Pinion has a angular motion. The linear motion of the rack is directly related to the radius (Pitch Circle Radius) of the Pinion.
You can convert a Rack and Pinion to a Ball-Screw in the Rack-Pinion dialog-box.
The preparation for the Ball-Screw is the same as for the Rack and Pinion. You do Add Rack-Pinion. Then, use the Rack-Pinion dialog-box to change the Rack-Pinion to a Ball-Screw.
Machine Elements Toolbar : Add Rack-Pinion (Ball-Screw) |
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Menu : |
Add menu > Mechanism sub-menu > Add Rack-Pinion (Ball-Screw) |
Rack-Pinion dialog-box : |
Edit the number-of-teeth on the Pinion and along the Rack, and to move the position of the rack along its axis. You can edit the Gear Module plus other gearing parameters. You can also convert the Rack-Pinion to a Ball-Screw. |
Driving Pinion + Driven Rack.
Rule : Line Rule : Line Lines or CAD-Lines Add Rack-Pinion: command
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The Command-Manager now has two selection-boxes. You must select the two Line elements:
The Rack-Pinion is in the Assembly-Tree and Graphic-Area. Notes: The Rack is offset by the Pitch-Circle Radius of the Pinion. The Rack is on the near-side or far-side of the Pinion relative to the Slide-Joint. The Pinion may be VERY small. Use the Rack-Pinion dialog-box to edit the:
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Driving Rack > Driven Rack.
Note: Rule: Line Rule: Line Lines or CAD-Lines Add Rack-Pinion: command
- or -
The Command-Manager now has two selection-boxes. You must select the two Line elements:
The Rack-Pinion is in the Assembly-Tree and Graphic-Area. Notes: Use the Rack-Pinion dialog-box to edit the:
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Videos of Rack-Pinion with Driving Pinion:
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