> ## 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.

# Can I use a Ramp in a Shell?

## Question:

Is it possible to put a Ramp block in a shell block to make the thickness variable?

## Applies to:

* Modeling

## Answer:

To put a **Ramp** block into the **Shell** block, you need to change the overload to Scalar on the **Ramp** block (using the down arrow by the block name).

![An image of the Shell block with a Ramp block inserted into the Thickness input. The image highlights the overload button of the Ramp block.](https://files.learn.ntop.com/help-articles/implicit-modeling/4411521125139.png)

However, now you can't use a Scalar Field as your input. If you want to use a Scalar Field, and still need a variable thickness, try this workflow instead:

* * Use an **Offset Body** block
    * Input a **Ramp** for the distance
    * **Boolean Subtract** your base object from the Offset result to create a variable shell

![An Offset Body that has a Ramp block applied to its Distance input. This creates a non uniform thickness result.](https://files.learn.ntop.com/help-articles/implicit-modeling/4411539611539.png)

## Keywords:

*ramp block field shell question scalar input overload*