# How to Drive a Sketch with Equations in SOLIDWORKS 2014

show more In SOLIDWORKS, equations allow you to derive an endless amount of sketch values using only one variable. This means you can easily change all of the linked values in a model by simply updating one equation. This eliminates the hassle of having to open each individual sketch and change each value one by one. Learn how to use equations to drive a sketch in SOLIDWORKS by watching this online video. show less

## Using equations to drive a sketch

Equations are awesome, and in SolidWorks 2014, they got even better. Equations allow you to derive an unlimited number of sketch values with one variable. If we later want to change that size, all we need to do is update the one equation, and all the linked values will change. Think about a quarter inch hole that is used across multiple features and sketches. If we wanted to change the hole to a 3/8 inch hole, all we need to do is edit the equation and all those hole will automatically update. Otherwise we would need to open each individual sketch and modify the values independently.

To get started let's go ahead and take a look at sketch one of 16.1 dash 1 and you can see here I have a pretty simple sketch. And I want to derive this with an equation value. So first things first let's jump over to the sketch tab and click on Smart dimension. And what I want to do here is I want to make a dimension from this far edge here and I'm gona click on this center line. And if I use the center line va...

Using equations to drive a sketch
Video duration: 5m 5s 6h 20m Beginner

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In SOLIDWORKS, equations allow you to derive an endless amount of sketch values using only one variable. This means you can easily change all of the linked values in a model by simply updating one equation. This eliminates the hassle of having to open each individual sketch and change each value one by one. Learn how to use equations to drive a sketch in SOLIDWORKS by watching this online video.

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