What is a Point-Cloud?
See also : Point-Cloud FB dialog-box
The term Point-Cloud is generally used to describe an array of coordinates that specify the shape of a 2D or 3D object.
Frequently, the shape is a cam that you want to reverse-engineer.
Point-Cloud FB
Use the Point-Cloud FB to:
• | import coordinate-data that represents the 2D shape or cam |
• | fit a curve to the coordinate-data |
The curve is mathematically smoother than the coordinates of the original data.
1. | Measure an old Cam; import the Point-Cloud and define it as a new curve with the Point-Cloud dialog-box. |
2. | Use the curve, in combination with a Magnetic-Joint and a Graph FB to find the motion of a Cam-Follower. |
3. | Use the tools in MotionDesigner to identify the motion of the Cam-Follower. |
4. | We would usually redefine the motion with an improved motion. We use the improved motion to re-calculate the 2D-Cam. |
5. | Finally, you can recalculate the cam-coordinates and export them for cam manufacture. |
See also Tutorial-21 Reverse Engineer a Cam
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Add Point-Cloud FB
Toolbar :
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Menu :
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Dialog-box :
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Point-Cloud dialog-box
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What to do :
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STEP 1: | Add the Point-Cloud FB to a Part |
1. | Click Modelling FB toolbar > Add Point-Cloud FB |
The Command-Manager shows one selection box. You must select a Part.
2. | Click a Part in the graphic-area or the Assembly-Tree |
3. | Click in the |
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The Point-Cloud FB is a child to the Part you select in the Command-Manager.
The Point-Cloud FB is in the graphic-area.
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Edit :
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STEP 2: | Open the Point-Cloud FB dialog-box to: |
• | Fit a Curve to the Point-Cloud |
See Point-Cloud FB dialog-box.
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Video :
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See YouTube: http://youtu.be/IME9Eb4mpQE
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