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Learn the basics of mechanical engineering by constructing a working model of a drivetrain using universal gear joints. This hands-on activity will help students understand how these joints allow for variable angles while transmitting rotary motion. Materials list and step-by-step guides can be found at [this website](https://example.com).

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Build a Drivetrain Model
- MATLAB & Simulink

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Learn how to model a driveline using Simscape Driveline.

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Explore the physics behind universal gear joints through a motion transfer experiment. Students will create simple setups using universal joints to see firsthand how these components transfer motion in different directions and under varying angles. Capture the setups and observations in your engineering journal.

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Get up close with the mechanics of universal gear joints by dissecting one. This activity encourages students to carefully take apart a universal joint to study its components and understand how they work together to allow for flexible motion. Document the dissection process and findings with photos or drawings.

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Dive into the world of bevel gears by designing and creating your own bevel gear system. This project fosters creativity and technical skills as students get to construct a system that demonstrates how bevel gears allow for power transmission at various angles. Use the provided templates and tools on [this website](https://example.com).

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VEX Gear Tutorials - Building a Bevel Gear

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Engage with digital technology by participating in an interactive simulation of bevel gears at work. This online tool allows students to manipulate the gear angles and observe the changes in motion and power transmission. Visit [this website](https://example.com) to access the simulation and guide your understanding of bevel gears.

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The following online calculator computes the basic dimensions and tooth profiles of a bevel gear pair (pinion and gear) based on their number of teeth and angle between the shaft axes.

Conceptually, two meshing bevel gears can be represented by two touching cones, referred to as pitch cones or reference cones, shown in thick lines on the left image below.

The diameter of a cone's base circle is simply the gear's number of teeth times module ( and ). The angle between the shaft axes, Σ, is usually 90° but could be a different number. Finally, the facewidth b is the length of the contact line of the two reference cones (see right image). This value should not exceed ¹/ ₃ of the Cone distance denoted R on the right image, which is also the radius of the circle shown on the left image.

This calculator takes m, , , Σ and b as inputs, and computes the parametric equations for the tooth profiles of both gears, the cone angles δ1 and δ2, cone distance R, a scaling factor s calculated as (R - b) / R, and distance from the cone base to apex. The scaling factor makes it easy to model the top section of the gear by scaling down its bottom section, and the base-to-apex height is used to correctly position the gear's origin, as shown in the tutorial.

Update: As of 2017-01-18, this calculator is equipped with two new buttons, Show pinion script and Show gear script. These buttons generate Python scripts that instantly tranform flat gear outlines to saucer-like shapes that form the top and bottom of a bevel gear.

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The following online calculator computes the basic dimensions and tooth profiles of a bevel gear pair (pinion and gear) based on their number of teeth and angle between the shaft axes. Conceptually, two meshing bevel gears can be represented by two touching cones, referred to as pitch cones or reference cones, shown in thick lines on the left image below.

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Conduct a detailed analysis of a bevel gear mechanism by examining an existing system. This could be a simple toy or a more complex machine. Draw or photograph the gear configuration, discuss the gear ratio, and analyze how the gear design affects the motion and force transmission. 