Kinematic FB | Add Motion-Path FB

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Kinematic FB | Add Motion-Path FB

Why use a Motion-Path Function-Block?

See also Motion-Path dialog-box

Motion-Path FB

To add a Motion-Path FB you select a sketch-element in a sketch-path*. MechDesigner adds a Motion-Point at the start-Point of the sketch-element* .

The motion-values at the input-connector to the Motion-Path FB specify the motion of the Motion-Point along the sketch-path..

Applications of a Motion-Path FB:

to define the path of a robot

to define the path of a chain or belt,

to define the motion of Ram-R and Ram-P dyads

An example application of the Ram-R dyad is to model an extending-cylinder to raise a Scissor-Lift.

Rules for a Motion-Path FB

The sketch-path can be:

a single sketch-element (-)

open (C) or closed (0)

crossed (8) or not-crossed (0)

Add Motion-Path FB

Add :

STEP 1: Add the Motion-Path FB to a sketch-path that is the graphic-area

Add Motion-Path FB

1.Click Kinematics FB toolbar > Motion-Path FB


1.Click Add menu > Add Motion-Path FB

The Command-Manager has one selection-box.

2.Click a sketch-element from the sketch-path

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

The Motion-Path FB is now in the graphic-area (and Assembly-Tree).

A Motion-Point is at the start-Point of the sketch-element you select as the sketch-path.

Open :

STEP 2: Open the Motion-Path dialog-box

1.Double-click a Motion-Path FB in the graphic-area

- or -

1.See How to Open a Dialog-Box

The Motion-Path FB dialog-box is now open.

Dialog :

Motion-Path dialog-box

Compare : Motion-Path FB and Motion-Dimension FB

A Motion-Path FB / Motion-Point can be compared with a Motion-Dimension FB / Motion-Part.

Function-Block :

Motion-Path FB <

> Motion-Dimension FB

Motion Element :

Motion-Point <

> Motion-Part

Constraint :

Sketch-Path <

> Joint

Input :

Motion-Values at its input-connector <

>Motion-Values at its input-connector


A Motion-Point constrained by a sketch-element <

> A Motion-Part constrained by a joint