Objective of Tutorial 1

To add your first 'kinematic-chain' – a Part that rotates at constant angular speed.
To make sure that you can do every step and
To learn the different methods we use to do each step.

Note: In a Machine, a 'Part that Rotates', might become a: shaft, cam-shaft, indexing shaft, turret, star-wheel, feed-screw (scroll), 64-head filling-machine, lever, cam-follower, tucking tool...


Terminology : the technical language for the important elements we use in this tutorial

Plane :

the flat surface that is at a precise angle and position relative to the XYZ axes and XYZ coordinates. We must add a Mechanism-Editor to a Plane. When that Mechanism-Editor is active, the 'Front-View' looks directly at the Mechanism-Plane.

Mechanism-Editor :

the workspace that includes the Mechanism-Plane, the graphic-area, and the Mechanism-Editor name tab.

Base-Part :

the fixed Part in a Mechanism-Editor. The Base-Part has a 'rectangular' Part-Outline.

Part :

an element that becomes a moving, or fixed, rigid-body in the machine. Parts [also called Added-Parts] have an 'oval' Part-Outline.

Joint :

Kinematic-Joints constrain the relative movement between two Parts.

Pin-Joint :

a Kinematic-Joint that constrains together two Points, with one Point in two different Parts.

Kinematic-Chain :

two or more Parts joined together with one or more Joints.

Kinematically-Defined :

a Part or a Kinematic-Chain that moves in a manner as specified by at least one Motion-Part.

Motion-Part :

a Part whose motion is precisely specified with a so-called Motion-Dimension FB

Motion-Dimension FB :

a Function-Block that specifies the angular or linear position, velocity and acceleration of a Part as a function of the Master-Machine-Angle [there are exceptions]

Master-Machine-Angle :

the 'clock' that, when you cycle the machine, moves at a constant rate from 0 to 360, again and a again.

The position of all kinematically-defined Parts and kinematically-defined chains are a function of the Master-Machine-Angle. The Master-Machine-Angle [MMA] 'beats the drum' of the machine.

Rocker :

a Motion-Part that rotates in a specified way relative to a different Part. It may index progressively, rotate continuously [as a Crank], or oscillate back-and-forth.

Step-by-Step Instructions

Icon-AddMechanism Add a Part that Rotates – a Crank

Video of 'Add a Part that Rotates – a Crank'

Tutorial and Reference Help Files for MechDesigner and MotionDesigner 13.2 + © Machine, Mechanism, Motion and Cam Design Software by PSMotion Ltd