> ## 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.

# Fischer Koch S Unit Cell

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> This page is for AI assistant context only. To use this package, visit [community.ntop.com](https://community.ntop.com/packages/ntop/fischer-koch-s-unit-cell).

## Summary

Creates a custom unit cell from a Fischer-Koch S surface periodic pattern field with options for wall thickness and midsurface offset.

## Package Details

| Field            | Value                                                                 |
| ---------------- | --------------------------------------------------------------------- |
| **ID**           | `fischer-koch-s-unit-cell`                                            |
| **Type**         | Block                                                                 |
| **Author**       | nTop                                                                  |
| **Version**      | 1.0.0                                                                 |
| **nTop Version** | 5.44+                                                                 |
| **Domain**       | Additive Manufacturing                                                |
| **Complexity**   | Beginner                                                              |
| **Tags**         | `fischer-koch`, `unit-cell`, `tpms`, `lattice`, `periodic`, `surface` |
| **License**      | MIT                                                                   |
| **Verified**     | Yes                                                                   |

***

Creates a custom unit cell from a Fischer-Koch S surface periodic pattern field with options for wall thickness and midsurface offset.

## Installation

Clone this repo or copy the package folder into your nTop workspace:

```bash theme={null}
git clone https://github.com/nTopology/Utilities.git
```

The package lives at `packages/ntop/fischer-koch-s-unit-cell/`.

## Inputs

| Name                     | Type   | Description                                                                                                                                             |
| ------------------------ | ------ | ------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `Unit Cell Type`         | Choice | Type of parametrized unit cell — `0`: Walled (solid walls), `1`: Offset (offset surface only), `2`: Walled + Offset (combination of both)               |
| `Cell Size`              | Scalar | Size of one unit cell in mm. Controls the overall scale of the periodic pattern.                                                                        |
| `Approx. Wall Thickness` | Scalar | Approximate thickness of the TPMS walls in mm.                                                                                                          |
| `Midsurface Offset`      | Scalar | Offset of the TPMS as a positive or negative approximate distance. Positive values shift the mid-surface wall outward; negative values shift it inward. |

## Outputs

| Name               | Type      | Description                                                  |
| ------------------ | --------- | ------------------------------------------------------------ |
| `Custom Unit Cell` | Unit Cell | Fischer-Koch S unit cell ready for use in lattice workflows. |

## License

MIT.

***

## Source

[https://community.ntop.com/packages/ntop/fischer-koch-s-unit-cell](https://community.ntop.com/packages/ntop/fischer-koch-s-unit-cell)