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How to draw spline

Spline Command in AutoCAD

Now we will learn about what is spline command in AutoCAD. We can draw spline with two methods, fit points and control vertices. Both the methods are given in Draw panel.

The Shortcut key for spline command is 'SPL+Enter' key.

As soon as we press enter after commanding SPL we can draw any smooth curve with numerous points on our screen. We can click at one point than on other, than at other, than other, and more as we want. And atlast press Enter to see the whole Smooth curve drawn.

We can draw a smooth curve and then select it and see the points we marked. Also we will be shown a dropdown arrow just below our starting point to change the method from Fit to CV and vice-versa. By using Fit method we can control the points we used to make smooth curve by stretching them, removing them etc...

Now we will change the smooth curve method to CV ie. Control Vertices. After changing to CV we will see that vertices has been added to our smooth curve, and we can stretch vertex, add vertex, refine vertices, and remove vertex.

By using refined vertices option we can stretch our curve with small vertices for making it smooth.

We can draw many furniture designs with the help of spline command in AutoCAD. We have also drawn one mechanical shaft with the help of spline smooth curves.


Splines are used to create shapes in 2D and 3D that can be used to fill gaps or add detail to a drawing. Splines are curves that can be created with the aid of a mouse, but they can also be created by inputting coordinates. A spline is an object made up of one or more curves. The curves, which are called control points, can be connected in any order and at any angle. A spline is like a rubber band: it has no thickness and cannot intersect itself.

  • AutoCAD has a wide range of tools that can be used to create different shapes. One of the most popular ones is the Spline and Arc tool. It is used to create freeform curves by specifying points that are connected with straight lines.
  • The first step is to select the Spline and Arc tool from the Home tab. Click on an active line or arc, then click on any point on the screen, hold down Shift and click again at another point. The first point will connect with the second to form a straight line segment, which will be extended until it connects with another active line or arc.

  • AutoCAD is a computer-aided design software that has been around for decades. It is used by architects, engineers, and designers to create 3D models. In this tutorial, we will learn how to draw a spiral curve in AutoCAD.
  • To draw a spiral curve in AutoCAD, we first need to create a line with the Line command. Then we can use the Spiral command to specify the start point and radius of the curve. Finally, we can use the Close Curve command to close off our shape and complete it.

This is a question that has been asked by many people. The answer to the question is that there are different types of curves and they can be classified as:

  • Linear curve: This type of curve is used to measure the distance between two points on a graph.
  • Exponential curve: This type of curve is used to measure the change in some quantity as it increases or decreases over time.
  • Logarithmic curve: This type of curve is used to measure the change in some quantity as it increases or decreases over time.
  • Quadratic curve: This type of curve is used to measure how an equation changes when one variable changes and another remains constant.

The following steps will help you draw a spiral curve in AutoCAD:

  • Draw the straight line segment.
  • Draw the arc.

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