﻿ Getting Started Tutorials - MechDesigner > Tutorial 1: Add a Part that Rotates - a Crank

Tutorial 1: Add a Part that Rotates - a Crank

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Tutorial 1: Add a Part that Rotates - a Crank

To add your first kinematic-chain – a Part that rotates at constant angular velocity - also called Uniform Rotary Motion.

To learn the different methods to do each step.

Each step is explained in detail - almost tedious detail!

Note: In an actual machine, a 'Part that Rotates', may be a: shaft, cam-shaft, indexing shaft, turret, star-wheel, ...

Terminology : the technical language for the important elements we use in Tutorial 1

 Term : Description and definition. Element : Physical and abstract objects we add to the model to build the machine.  Each Add command will add a new element to the model. Plane : A flat surface, defined by its X-Y axes. The Front-View (F3) of a Plane is a view that is normal to its X-Y axes, and its –Z-axis. Mechanism-Plane : The Plane to which the active Mechanism-Editor has been added. Mechanism-Editor : The graphic-area, the Mechanism name-tab, and the Contextual toolbars Base-Part : The fixed, or 'frame' Part for the active Mechanism-Editor. The Base-Part has a rectangular Part-Outline. Note: Mechanism-Editors can be added to a fixed or a moving Plane. Part : The Parts to build the machine. Added-Parts have an oval Part-Outline. Kinematic-Joint : Kinematic-Joints constrain the relative movement between two Parts. Pin-Joint : A Kinematic-Joint that constrains Points in two different Parts to be coincident on the Mechanism-Plane. Slide-Joint : A Kinematic-Joint that constrains Lines in two different Parts to be coincident on the Mechanism-Plane Kinematic-Chain : Two or more Parts, joined with one or more Joints. Kinematically-Defined Part (or chain) : A Part (or Chain) that moves in a manner as specified by at least one Motion-Part Motion-Part : A Part whose motion is precisely specified by a Motion-Dimension FB Motion-Dimension FB : A Function-Block that specifies the angle or position of a Part Linear-Motion FB : A Function-Block whose output increases at the same rate as the Master-Machine-Angle Master-Machine-Angle : The machine-clock that, when you cycle the model, increases at a constant rate from 0 to 360, again and again. Rocker : A Motion-Part that rotates about a Pin-Joint. Crank : A Rocker whose motion is constant angular velocity.

Video Tutorial 1