# Reference Curves

### **Step 1**: Layers Panel

Select the layer where you want to create the reference curves.

<img src="https://www.rhinoartisan.com/wp-content/uploads/2024/07/Layers.png" alt="" height="160" width="800">

### **Step 2**: Circle Command

Go to the **Curve** tab and use the **Circle** command.&#x20;

<img src="https://www.rhinoartisan.com/wp-content/uploads/2024/07/Circle-Command-1.png" alt="" height="199" width="800">

### **Step 3**: Create your Circles

In the **Top viewport,** create four circles of different size&#x73;**.** With **Grid Snap** activated, select any point and type **3 millimeters** for the first circle.

<img src="https://www.rhinoartisan.com/wp-content/uploads/2024/07/Circlescommand.png" alt="" height="199" width="800">

* Repeat the command by **right-clicking**, select another point, and type **4.5 millimeters** for the second circle.

Continue to create another circle of **5 millimeters** and a final one of **6 millimeters**.

![](https://www.rhinoartisan.com/wp-content/uploads/2024/07/Circles-1.png)

### **Step 4**: Anotation Dot Command

To make the circles easier to visualize, add dots. Go to the **Drafting** tab.

<img src="https://www.rhinoartisan.com/wp-content/uploads/2024/07/AnotateDot.png" alt="" height="94" width="800">

### **Step 5: Create Dots**

Select **Annotate Dot**, type the diameter of each circle, and place the dots accordingly.

<img src="https://www.rhinoartisan.com/wp-content/uploads/2024/07/AnotateDot-2.png" alt="" height="158" width="800">

### **Video Lesson**

{% embed url="<https://www.rhinoartisan.com/wp-content/uploads/2024/07/Lesson-1.mp4>" %}

**Next Step**: Create offsets and group the curves.


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