How to Make a Stirrer Using the Freehand Drawing Tool in SelfCAD

 |  Moses Zikei

How to 3D Design a Stirrer in SelfCAD

The Freehand Drawing tool lets you sketch directly in 3D, giving you more creative freedom than you might get with more rigid, CAD-based modeling programs. This tool is great for projects where creativity and originality matter more than precision. For example, when designing a stirrer, you can play around with different shapes and patterns to create something unique and personal. The Freehand Drawing tool allows you to draw freely, like you would on paper, but with the advantage of instantly seeing your design in 3D. 

Steps to Designing a Stirrer in SelfCAD

In this section, we are looking at how to design a stirrer using the Freehands tools in SelfCAD. You can check out the interactive tutorial to learn how it was designed. In summary, you will begin by launching by launching the software and open the workspace:

SelfCAD workspace

On the toolbar, from the Drawing category, select Free Hand Drawing:

Free hand drawing tools in SelfCAD

Use the Brush to draw the drawing as follows. Set Symmetry to true, and set both values to 60:

Symmetry in SelfCAD

Tick the check mark to finalize the drawing:

3D designing

From the toolbar on the Tools category select Copy Offset tool. Set the operation to Pivot and set the Number of Copies to 2 and click copy:

Creating copies of 3D models

The copies will be positioned as follows. Click “X” to close the copy offset panel:

Copy offset in SelfCAD

On the toolbar, select Scale Tool and open the advanced settings. Set Keep Proportion to true and then set X to 50:

Scale tool in SelfCAD

Use the Move tool to center the object on the grid by setting Y to 0:

Move tool in SelfCAD

Click “X” to close the transformation panel. Select Freehand from the Drawing. Select Circle and draw the circle as shown and set measurements as 20. Switch to Brush and draw a drawing running from the circle to the former one drawn:

Freehand drawing in SelfCAD

On the Height Settings set the Height to 1:

Height settings in SelfCAD

Tick the check mark to finalize the drawing:

Checkmark in SelfCAD

From the Utilities category select the Align tool. Set Reference to drawing_1 and Align to Middle and Front:

Utilities category

Click “X” to close the Align panel. Finalize by selecting all the objects in the workspace. From the Stitch and Scoop category, select Union and finalize:

Stitch and Scoop tool in SelfCAD

The Stirrer is finally ready:

3D design of a stirrer

You can now change the color based on your preference:

Coloring in 3D

SelfCAD is an all-in-one 3D design program that works well for both beginners and experienced designers. What makes SelfCAD different from other 3D modeling software is its easy-to-use interface and a wide range of tools that make the design process simple and efficient. Even if you're new to 3D modeling or have been doing it for years, SelfCAD gives you everything you need to do designing. Freehand Drawing tool in SelfCAD is especially helpful for designing unique and custom shapes, making it perfect for creating a stirrer and your other preferred designs. After 3D designing, you can also use the in-built online slicer of the software to prepare your files for 3D printing, as shown in the video below.


Enjoy powerful modeling, rendering, and 3D printing tools without the steep learning curve.

Need to learn 3D modeling? Get started with interactive tutorials.

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