Add / Update Polyline

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Add / Update Polyline

Add a Polyline

A Polyline sketch-element is a copy of the shape of a 2D-Cam and Gear-Pair.

When the 2D-Cam or Gear-Pair is a closed shape, the Polyline is a sketch-loop*.

Therefore, you can add Profile/Extrusions to the Polyline to model 2D-Cams and Gear-Pairs as MD-Solids.

Update Polyline

The shape of the Polyline does not update to new the shape if you edit a 2D-Cam or Gear-Pair. You must update the shape of the Polyline manually, by adding the Polyline again - see Update Polyline

* If a 2D-Cam is “Open”, or the gears in a Gear-Pair are “Gear-Segments”, you must edit the Parts after you add a Polyline to add sketch-elements and to close the sketch-loop.

Add Polyline

STEP 1: Put the MMA to Zero degrees

1.Press ALT+H or the Home key on your keyboard

STEP 2:Start the Add Polyline command:

MD-Icon-AddPolyline

1.Click MD-Solids menu > Add Polyline

OR

1.Click MD-Solids toolbar > Add Polyline

The Command-Manager has one selection-box.
Command-Manager

Command-Manager

STEP 3:Select a 2D-Cam or Gear-Pair

To add a Polyline to a 2D-Cam or Gear-Pair:

1.Click a 2D-Cam or Gear-Pair in the graphics-area or Assembly-Tree

Add Polyline

Add Polyline

The 2D-Cam or Gear-Pair is in the Command-Manager selection-box.

2D-Cam element in the Selection-Box

2D-Cam element in the Selection-Box

STEP 4: Complete the command

1.Click OK-tiny-13-17 in the Command-Manager

If necessary:

2.Click Rebuild Now to make sure the Polyline is correct.

The Polyline is now a sketch-element in the Part that is the shape of the 2D-Cam or Gear-Pair.

Update Polyline

To Update the shape of the Polyline to the new shape of a 2D-Cam or Gear-Pair:

STEP 1: Put the MMA to Zero degrees

1.Press ALT+H or the Home key on your keyboard

STEP 2:Start the Add Polyline command:

MD-Icon-AddPolyline

1.Click MD-Solids menu > Add Polyline

OR

1.Click MD-Solids toolbar > Add Polyline

The Command-Manager has one selection-box.
Command-Manager

Command-Manager

STEP 3:Select the 2D-Cam or Gear-Pair whose shape you want to update

1.Click the new shape of a 2D-Cam or Gear-Pair in the graphics-area or Assembly-Tree

Update Polyline

Update Polyline

The 2D-Cam or Gear-Pair is in the Command-Manager selection-box.

2D-Cam element in the Selection-Box

2D-Cam element in the Selection-Box

STEP 4: Complete the command

1.Click OK-tiny-13-17 in the Command-Manager

If necessary:

1.Click Rebuild Now to make sure the Polyline is correct.

The shape of the Polyline updates to the new shape of the 2D-Cam or Gear-Pair.