# Creating Mid-Plane

## Creating Mid-Plane

Before mirroring the half of the drive we've created, we need to create a mid-plane.

Make sure you're in the `Assemble` tab in the ribbon.  Select the drop down for `Plane`, and select `Offset from Plane`. 

![Plane Menu](/files/-MfGIJ50gcF-CU3cyW6J)

Now select the thickness of the cross brace.  

![Plane Selection](/files/-MfGIWofti1TcupTlOtD)

The cross brace I chose was 35 holes long.  Each hold is 0.5", so this c-channel is 17.5" long.  I have the plane coming in `-(17.5/2)` to put a mid-plane in the center of the cross brace.  Once this is done, click the green check mark. 

![Dimension Constraining the Plane](/files/-MfGIlIbR_YJ0HU4VOAp)

If completed correctly, you should have an orange plane in the center of your cross brace. 

![Completed Mid-Plane](/files/-MfGJIGmmQmNoBSMT-qb)

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Remember to save!
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## Contributors to this Article:

* Jess - EZ


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