Summary of the Step.
You do not need to do this step. The model will be slower to build if you do this step.
We do this step to introduce you to , and to the Polyline element.
Note that the Profile element does not change dynamically if the shape of the 2D-Cam cam changes.
Either: Jump to Step 6A1.8 if you do not need to show the Cam as a solid element.
Or: Do these two commands:
1. to the Inner Cam-Profile
2. to the Polyline
Note: You can do to 2D-Cams and Gear-Pairs.
|
Why add a Polyline and Profile to a Cam?
Add these elements ONLY if you need to:
•Show the Cam as an .
•Find the Mass, Center-of-Mass, and Mass Moment-of-Inertia. of the 2D-Cam E.g. If you want to balance the Cam.
•Include the Cam's mass with a Force-Analysis. |
Video of this Step
STEP 1: Home the model ; MMA =0
It is important that the MMA=0 before we add the Polyline.
|
Click ,
or
Press the Home key on your keyboard.
|
|
|
STEP 2: Start the Add Polyline command
The is above the graphics-area.
The Command-Manager indicates you must select a 2D-Cam or a Gear-Pair.
|
|
STEP 3: Select the element
|
Click the 2D-Cam in the graphics-area
|
|
|
STEP 3: Complete the Command
Click  in the Command-Manager
|
|
|
STEP 1: Start the Add Profile command
MD16: Click
MD17:
or
Click
|
|
|
|
STEP 2: Select the Polyline as the Sketch-Element
Click the 2D-Cam in the graphics-area
|
The Polyline is now in the selection-box in the Command-Manager.
STEP 3: Complete the Command
Click  in the Command-Manager
|
To see the Profile and Extrusion
Enable
|
|
|
 Assembly-Tree with 2D-Cam, with Profile/Extrusion element. |
The elements are also in the .
Expand Part to see these elements:
•CAD-Line - from the start-Point to the end-Point of the Cam-Shaft Part
•Cam-Plate - we do not add this element. We use it for all 2D-Cams you may add to the Cam-Shaft Part.
•2D-Cam - a to indicate it is a good cam (in this case)
•Profile - a child to the Part
•Extrusion - a child to the Profile |
We do not list for you the Polyline in the Assembly-Tree.
If you click the 2D-Cam in the graphics-area, you will see 2D-Cam, the Polyline , and the Profile in the Selection-Window.
|
URL of this topic:
http://mechdesigner.support/index.htm?md-qst5_7-add-cam-profile.htm
