> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ntop.com/llms.txt
> Use this file to discover all available pages before exploring further.

# How to blend TPMS types together

## Objective:

Learn how to use the **Mix** and **Ramp** block to blend two different types of TPMS together.

## Procedure:

The **Mix** block is what we use to blend the bodies together. To get a nice blend we need the bodies to be overlapping each other (so the block can use geometry from both to mix them). You decide the mixing factor, 0-1, where 0 is Scalar Field A and 1 is Scalar Field B. Using a Ramp block with the Mix block allows you to vary the mix factor along the part.

**1. Set up the part and variables**

* Import your CAD body and then convert it to an Implicit Body.
* Create a variable of the **Implicit Body** and name it "Body Shape".
* Open the Properties of the **Implicit Body**, and drag the Bounding Box chip into the Notebook to create a [Variable](/help-articles/knowledge-base/user-interface/how-to-create-variables) of this parameter (this will be used in the final step).

**2. Set up the Gyroid details**

* Add a **Periodic Lattice** block.
  * Unit cell: Walled TPMS Unit Cell.
    * Unit cell: Gyroid.
  * Cell map: Rectangular Cell Map.
  * Approx. thickness 1 mm.
* Duplicate the variable and change the Unit cell: Schwarz.

![Create two rectangular volume lattices that should be blended together.](https://files.learn.ntop.com/help-articles/lattices/6655721088787.png)

**3. Set up the mixing parameters**

* Add a **Ramp.**
  * Create a **Plane from Normal** for the Real Field input.
    * Use the *Min Point* property from the **Implicit Body** "Body Shape" for the plane origin to place it at the bottom of the part.
  * Set In min: 0 mm, In max: 10 mm, Out min: 0, Out max: 1.
*
* *Check the Plane from Normal and set the In and Out values based on the location of the plane.*
* * Add a **Mix.**
    * Real Field A: Drag and drop the Implicit chip from the Gyroid Lattice.
    * Real Field B: Drag and drop the Implicit chip from the Schwarz Lattice.
    * Set the Factor to the **Ramp.**

**4. Clean it up**

* Add a **Set Field Bounding Box.**
  * Set the Real Field to the **Mix** block.
  * Set the Bounding Box to the bounding box variable made at the beginning.

![The final configuration for blending the two implicits together.](https://files.learn.ntop.com/help-articles/lattices/6017765219859.png)

And that's it! You've successfully mixed two TPMS types together.

Are you still having issues? Contact the [support team](https://support.ntopology.com/hc/en-us/requests/new), and we'll be happy to help!

## Download the Example file:

* [Example File](https://files.learn.ntop.com/Support%20Article%20Example%20Files/Knowledge%20Base/Lattices/Gyroid%20Blend.ntop)

## Keywords:

*ramp TPMS ramping gyroid blend variable Mix smooth blending*