The Ultimaker S5 is a powerful, versatile desktop 3D printer designed for serious makers, engineers, and STEM teams looking to bring complex design to life with precision. It's an ideal printer for student teams aiming to build custom components, aerodynamic parts, tools and prototypes. 

The Ultimaker S5 has a build area of 330 x 240 x 300 mm. This allows it to print bigger parts or many small parts in a single print. The printer allows for dual-extrusion, meaning you can combine two materials or colours in one print. It is compatible with over 280 filament types, which gives a lot of options for functional prototypes and race-ready parts. A 11.98 cm color touchscreen makes setup and operation easy, with guided menus and print previews right on the machine. Advanced features like bed levelling, filament flow sensors ensure prints start well and finish well. 

The Ultimaker S5 gives us the ability to design, test, and produce high-quality custom parts quickly, helping our STEM racing team innovate and improve performance. 

Autodesk Fusion is a software that integrates engineering design and manufacturing capabilities. One of its core functions is "basic parameters," a key tool for parametric modeling. Users can control the dimensions and structure of the model, such as thickness, through parameter variables. For example, parameters are mainly divided into user parameters and model parameters. 

User parameters are defined by the designer and can be used to uniformly control multiple dimensions and support formula calculations; model parameters are automatically generated during the modeling process and are used to record specific geometric dimensions. With these parameters, users only need to modify one value to automatically update the entire model, thereby greatly improving design efficiency and flexibility. 

Fusion supports multiple units (such as millimeters, inches, and angles) and parametric expression calculations, making designs more accurate and standardized. In short, parametric design makes the modeling process more intelligent and is a very important fundamental function in modern engineering design.