EF-3.1 – Mechanisms – Cam, Crank and Toggle


EF-3.1 – Mechanisms – Cam, Crank and Toggle

The EF-3.1- Cam, Crank and Toggle experiments kit provides students with an introduction to cams and rollers and additionally crank motion and toggle.


The Engineering Fundamentals range enables students to gain an understanding of the principles of engineering by the process of learning via experimentation.

The EF-3.1- Cam, Crank and Toggle experiments kit provides students with an introduction to cams and rollers and additionally crank motion and toggle.

The kit is designed to help students understand how cams are used, to show how the rotational motion of a cam is transmitted to the linear motion of a follower and how different shapes of cam can be used to achieve varying magnitude and duration of linear motion.

Similar to cams, a crank mechanism can transform rotational motion into linear motion although unlike cams, cranks can also work in the opposite direction, transferring linear motion into rotational motion.

 Engineering fundamentals system

The modular tray-based system is supplied in conjunction with a multifunctional work panel enabling the student to conduct their own experiments in subjects such as statics, dynamics, mechanisms and kinematics.

Each kit is supplied with a highly visual user-friendly operational guide, allowing the student to understand the theory of the subject by the application of practical experimentation.

Technical Specifications

Features & Benefits


  • Neatly presented in an easily identifiable and durable storage tray
  • Trays have clear lids making it easy to see their contents
  • Pictorial tray contents list to identify missing components easily
  • Accompanied by a detailed manual with various practical exercises
  • Clear and concise assembly instructions for each experiment
  • Multiple experiments per kit
  • Toolless assembly


  • Hands-on understanding from lessons
  • Improve the student’s dexterity by self-assembly with the instructions provided


  • Relationship between the angular movement of a pear, heart, round and snail cam and the linear movement of the follower
  • Characteristics of a pear, heart, round, and snail cam profile
  • Show characteristics of a rotating crank assembly by observing the motion of the system and observe the change in turning moment with crank angular position
  • Turning moments and forces during crank motion

  •  EF-BU Base Unit

Statics Experiments

  • EF-1.1 Engineering Fundamentals Force
  • EF-1.2 Engineering Fundamentals Moments
  • EF-1.3a Engineering Fundamentals Beams
  • EF-1.3b Engineering Fundamentals Trusses
  • EF-1.4 Engineering Fundamentals Springs
  • EF-1.5 Engineering Fundamentals Torsion

Dynamics Experiments

  • EF-2.1 Engineering Fundamentals Friction
  • EF-2.2 Engineering Fundamentals Simple Harmonic Motion
  • EF-2.3 Engineering Fundamentals Rotational Friction
  • EF-2.4 Engineering Fundamentals Potential and Kinetic Energy
  • EF-2.5 Engineering Fundamentals Centrifugal & Centripetal Force

Mechanisms Experiments

  • EF-3.1 Engineering Fundamentals Cam, Crank and Toggle
  • EF-3.2 Engineering Fundamentals Mechanisms
  • EF-3.3 Engineering Fundamentals Additional Mechanisms
  • EF-3.4 Engineering Fundamentals Bar Linkages


  • EF- 4.1 Engineering Fundamentals Pulleys
  • EF- 4.2 Engineering Fundamentals Gears
  • EF- 4.3 Engineering Fundamentals Drive Systems


  • EF-WS Workstation
  • EF1-Spares

  • Pear cam
  • Heart cam
  • Circular cam
  • Snail cam
  • Knife edge follower
  • Flat face follower
  • Rotational cam follower
  • Offset rotational cam follower
  • 2 x 250g weights set on hanger

  • EF-BU Base Unit

  • EF-BU on which to build the experiment from the tray components
  • Level and stable work surface to mount the EF-BU upon. The optional EF-WS is ideal for this if no suitable desk or bench is available.


Volume: 2.0m³ per tray

Gross Weight: 5.0kg per tray

Length: 0.43m per tray

Width: 0.312m per tray

Height: 0.080m per tray

  • EF-3.1 – Cam, Crank and Toggle
  • EF-BU – Base Unit
  • EF-WS – Workstation (optional)

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