
Welcome to Sketching Fundamentals! In this opening lesson, your instructor Claas Kuhnen, Industrial Design Faculty at Wayne State University and founder of Studio Kuhnen, breaks down what sketches are and how they work in Shapr3D, covering how to create and edit sketches, generate geometry, and drive your design with history-based parametric modeling.
Learn how to create and position sketches anywhere in 3D space: on a construction plane, a planar face of a body, or directly on the world grid. You'll also cover how to select sketch elements, edit sketches from 3D view, and use the History panel to understand how changes to features like extrusions and offsets drive sketch position automatically.
Learn how to draw lines, arcs, and splines, then use dimensions and constraints to lock your sketch into a fully defined, predictable shape. You'll see the difference between a fully constrained sketch and an unconstrained one, and why it matters when working in a parametric modeling environment. By the end, you'll put it all together to revolve two bottle profiles and refine them with the Shell command.
See how design history and variables work together to keep your model flexible from start to finish. Using a water bottle and cap as the example, you'll learn how to assign variables to dimensions and modeling features, write simple equations between them, and create sketches that automatically adapt when earlier steps in the history change. A practical look at what parametric modeling actually looks like in a real workflow.
Go deep on the Project command and see how it can drive complex design decisions. You'll project edges onto construction planes to lay out interface designs, slice surfaces into individual elements, and use projected sketches as the foundation for symmetrical Loft profiles. Includes a practical chair backrest example showing how a single center sketch can control mirrored projections and a live-updating Loft, all at once.
Learn how to build curve networks by combining cross-section sketches with rail curves to give Loft precise control over the shape of your model. Starting with a simple three-profile example, you'll see how rails constrain the geometry and how editing individual sketches or rail handles updates the lofted body in real time. Claas then walks through two advanced examples, a hairdryer handle and a power drill grip, to show how the same methodology scales to complex, organically sculpted forms.
Discover how Shapr3D's sketch guide system automatically adds constraints as you draw, helping you work faster without relying on the grid. You'll learn how guidelines snap to horizontal, vertical, and perpendicular directions, how to create coincidence constraints between separate sketch elements, and how those relationships keep lines and arcs linked as you edit. A practical look at building precise sketches through guided drawing rather than manual constraint assignment.
Learn how to create circular and linear sketch patterns, control spacing, quantity, and rotation, and use variables to keep everything parametrically linked. You'll see how to combine patterns, constrain them to your geometry, and even mix circular and linear patterns together for more complex designs. Claas closes with a real product example, a desktop speaker, showing how sketch patterns drive everything from the front grill to the interface buttons.
Sketching is where every 3D model begins. In this 8-part series, CAD educator Claas Kuhnen walks you through the fundamental sketching tools in Shapr3D, giving you the precision, flexibility, and control to build models the right way from the start.
You'll learn how to set up and position sketches on the right planes, work with constraints to keep your geometry stable, and use splines to capture complex curves with accuracy. You'll also explore how Shapr3D's design history lets you make edits that ripple through your model in real time, so changes at the sketch level update your 3D geometry automatically.
Each lesson is built around a core skill: understanding sketch planes, applying geometric and dimensional constraints, drawing with intention, and knowing when a sketch is truly ready to be used as the foundation for a 3D feature. These aren't isolated techniques. They're the building blocks of a reliable, repeatable modeling workflow.
By the end of the series, you'll know how to create sketches that don't just look right. They behave right, adapting to your design as it evolves.
This series is for anyone new to CAD or to Shapr3D, with no prior experience required. Each lesson is short, focused, and directly applicable to real modeling workflows. Whether you're just getting started or building on basic familiarity, this series gives you a solid foundation to work from.