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# Modeling: Chamfer edges and faces
A chamfer is an angled cut on an edge. Chamfers can be created using the ``Modeler.geometry_commands`` module.

+++

## Create a block
Launch the modeler and create a block.

```{code-cell} ipython3
from ansys.geometry.core import launch_modeler, Modeler

modeler = launch_modeler()
print(modeler)
```

```{code-cell} ipython3
from ansys.geometry.core.sketch import Sketch
from ansys.geometry.core.math import Point2D

design = modeler.create_design("chamfer_block")
body = design.extrude_sketch("block", Sketch().box(Point2D([0, 0]), 1, 1), 1)

body.plot()
```

## Chamfer edges
Create a uniform chamfer on all edges of the block.

```{code-cell} ipython3
modeler.geometry_commands.chamfer(body.edges, distance=0.1)

body.plot()
```

## Chamfer faces
The chamfer of a face can also be modified. Create a chamfer on a single edge and then modify the chamfer distance value by providing the newly created face that represents the chamfer.

```{code-cell} ipython3
body = design.extrude_sketch("box", Sketch().box(Point2D([0,0]), 1, 1), 1)

modeler.geometry_commands.chamfer(body.edges[0], distance=0.1)

body.plot()
```

```{code-cell} ipython3
modeler.geometry_commands.chamfer(body.faces[-1], distance=0.3)

body.plot()
```

## Close session

When you finish interacting with your modeling service, you should close the active
server session. This frees resources wherever the service is running.

Close the server session.

```{code-cell} ipython3
modeler.close()
```