---
title: "Advanced Pipe Fitting in CloudWorx for AutoCAD"
slug: "cloudworx-advanced-pipe-fitting-in-cloudworx-for-autocad"
updated: 2026-09-14T12:26:43Z
published: 2026-09-14T12:26:43Z
canonical: "rcdocs.leica-geosystems.com/cloudworx-advanced-pipe-fitting-in-cloudworx-for-autocad"
stale: true
---

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

# Advanced Pipe Fitting in CloudWorx for AutoCAD

This guide explains how to extract the geometry of complex pipe runs and use various connection types to join pipe segments correctly. It details advanced pipe-fitting techniques, such as using eccentric reducers and T-branch connections, to ensure accurate pipe geometry in the plant model.

> [!NOTE]
> **Prerequisite**: For full workflow context and results, review the preceding guides in this series:
> 
> - [Advanced Workflow for Using Line Tools in CloudWorx for AutoCAD](/v1/docs/cloudworx-using-the-cloudworx-line-tools-for-3d-modeling-in-autocad)
> - [Advanced Steel Fitting in CloudWorx for AutoCAD](/v1/docs/cloudworx-advanced-steel-fitting-in-cloudworx-for-autocad)

[Video](https://hexagondownloads.blob.core.windows.net/public/Leica/RC%20DOCS%20videos/3_Advanced_Piping_AutoCAD.mp4)

## Practice Data

[Plant dataset](https://hexagondownloads.blob.core.windows.net/public/Leica/Sample%20Data/CWX_PLANT_DEMO_Italy.lgsx)

[Exercise CAD file (.dwg format)](https://hexagondownloads.blob.core.windows.net/public/Leica/Sample%20Data/3_Piping_WKFLW_Meters.dwg)

## Isolating Pipes to Extract

### Pipe Object Classification

To simplify the identification of piping in the point cloud, let’s use the Classification feature.

1. Orient the point cloud to the Front view.

![Extracting Pipe in CloudWorx for AutoCAD - Step 1.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%201.jpeg)
2. Navigate to **Rendering** and select **Color Mapping**.

![Extracting Pipe in CloudWorx for AutoCAD - Step 3.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%203.jpeg)
3. In the **Point Cloud Color Mapping** dialog, set **Global Color Mapping** to **Classification** and click **Apply**.

![Extracting Pipe in CloudWorx for AutoCAD - Step 5.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%205.jpeg)
4. Click **Class Visibility** to see the classification table. Keep all classes selected for the next steps.

![Extracting Pipe in CloudWorx for AutoCAD - Step 6.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%206.jpeg)

The piping now appears highlighted in green within the point cloud.

### Clipping the Area of Interest

Clip out the area shown in the image below:

![4c.jpg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/4c.jpg)
5. Use the View Cube to rotate to the Left view, then Navigate to **Clipping | Hide Outside** or type **CWHIDEOUT** in the command line.

![Extracting Pipe in CloudWorx for AutoCAD - Step 7.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%207.jpeg)
6. In the command line, select **Polygon** ot type **P**. Then draw a polygonal fence around the area of interest. Press **Enter** to finish drawing.

![](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Recording 2026-04-21 at 15.32.37.gif)
7. Use the View Cube to review the isolated section of the point cloud created for pipe extraction.

![Recording 2026-04-21 at 15.42.22.gif](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Recording%202026-04-21%20at%2015.42.22.gif)

## Extracting Pipe Geometry

### Creating Straight Pipe Segments

1. Enable the Pipe fitter. Go to **Fitters | Pipe**.

![Extracting Pipe in CloudWorx for AutoCAD - Step 13.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2013.jpeg)
2. Configure the Pipe fitter as follows:
  1. Ensure the **Annotation**, **Centerline**, and **Cylinder** check boxes are selected.
  2. Select the **Use Catalog** check box and then select the required catalog. In this example, it’s ISO_GR1_PIPE_METRIC.
  3. Click **Pick Points**.

![Extracting Pipe in CloudWorx for AutoCAD - Step 14.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2014.jpeg)
3. Pick a point on a straight segment of the pipe.

![Extracting Pipe in CloudWorx for AutoCAD - Step 15.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2015.jpeg)
4. When the pipe is fitted, the results will appear in the Parts Table. Review the fit, make any needed adjustments, and then click **OK**.

![Extracting Pipe in CloudWorx for AutoCAD - Step 16.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2016.jpeg)
5. Continue extracting straight pipe sections along the pipe run.
6. Review the extracted pipe geometry.

> [!TIP]
> **Tip:** Turn off point visibility (**Rendering | Point Visibility**) to improve visualisation of results.

![Extracting Pipe in CloudWorx for AutoCAD - Step 26 (1).jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2026%20(1).jpeg)

> [!NOTE]
> **Note:** The **Annotation** option, enabled during Pipe fitter configuration, adds a tag to the centerline feature that shows the pipe diameter. This makes it easier to add compatible features, check pipe specifications, and label final drawings.
> 
> ![208f4600-6df6-4d70-ad8a-58c3c92bf0ed.jpg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/208f4600-6df6-4d70-ad8a-58c3c92bf0ed.jpg)

### Connecting Pipes with Elbows

Now, let’s connect the extracted straight segments of the pipe run with elbows.

1. Go to **Fitters** and click **Connect**.

![Extracting Pipe in CloudWorx for AutoCAD - Step 31.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2031.jpeg)
2. Configure the fitter as follows:
  1. Ensure the **Centerline**, **Cylinder**, and **Insert Elbow** check boxes are selected.
  2. Set **Bend Ratio** to 1.3.

![Extracting Pipe in CloudWorx for AutoCAD - Step 32.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2032.jpeg)
3. Click **Pick Pipes**.
4. Turn off the point visibility.
5. Select all pipe segments that should be connected with elbows and press **Enter**. The pipes will be connected automatically.

![Extracting Pipe in CloudWorx for AutoCAD - Step 34.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2034.jpeg)![Extracting Pipe in CloudWorx for AutoCAD - Step 35.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2035.jpeg)
6. Turn on the point visibility.

> [!NOTE]
> **Note:** When creating connections where the connection seed pipe does not fit, CloudWorx does not automatically delete the old features and will instead creates new ones. The previous centerline object also remain in the drawing.
> 
> See image below:
> 
> ![5c.jpg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/5c.jpg)
> 
> The old features will have to be manually deleted. One strategy to help is to put the initial pipes on another layer before connecting them on the current layer.

### Adding Pipe Reducer

This part of the workflow shows you how to add a pipe reducer to connect pipe segments with different diameters.

1. Adjust the point cloud orientation and zoom in on the area where the pipe diameter changes.

![Extracting Pipe in CloudWorx for AutoCAD - Step 39.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2039.jpeg)
2. Go to the **Solid** tab and click **Presspull**.

![Extracting Pipe in CloudWorx for AutoCAD - Step 41.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2041.jpeg)
3. Move the pipe geometry away from the intended reducer location.

![Recording 2026-04-21 at 17.43.54.gif](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Recording%202026-04-21%20at%2017.43.54.gif)

a. Now the pipe geometry is represented by a line and two circles at each end of the pipe segment.

![Extracting Pipe in CloudWorx for AutoCAD - Step 48.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2048.jpeg)

1. Turn off point snapping to ensure more precise control.

![Extracting Pipe in CloudWorx for AutoCAD - Step 50.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2050.jpeg)
2. Zoom in on the pipe connection and adjust the centerline geometry to fit the point cloud at the point of the reducer connection.

![Recording 2026-04-22 at 11.00.15.gif](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Recording%202026-04-22%20at%2011.00.15.gif)
3. Select both pipes, type the **EXPLODE** command, and press **Enter**.
  1. The circles intended to form the reducer are now ungrouped.

![Extracting Pipe in CloudWorx for AutoCAD - Step 62 (1).jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2062%20(1).jpeg)
4. To model a pipe reducer, activate the **LOFT** command.
5. Go to the **Solid** tab and select **Loft**, or type **LOFT** in the command line.

![Extracting Pipe in CloudWorx for AutoCAD - Step 64.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2064.jpeg)
6. Select the two circles that represent the cross-sections of the reducer and press **Enter**.

![Extracting Pipe in CloudWorx for AutoCAD - Step 67.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2067.jpeg)
7. Select **Cross sections only** among the suggested options.

![Extracting Pipe in CloudWorx for AutoCAD - Step 68.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2068.jpeg)
8. Select the reducer geometry and click the direction arrow below.

![Extracting Pipe in CloudWorx for AutoCAD - Step 70.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2070.jpeg)
9. Select **Draft Angle** among the suggested options.

![Extracting Pipe in CloudWorx for AutoCAD - Step 71.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2071.jpeg)
10. Adjust the visual style of the reducer to review the result.
  1. Go to the **Visualize** tab and select the **Conceptual** visual style.

![image-20260422-091253.png](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/image-20260422-091253.png)
11. Use the **PRESSPULL** command to adjust the length of the pipe segments so they match the reducer.
  1. Click **Solid | Presspull**.
  2. Select each pipe segment and drag it to connect with the reducer.

![Recording 2026-04-22 at 12.26.24.gif](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Recording%202026-04-22%20at%2012.26.24.gif)

The pipe segments with different diameters are now joined using the eccentric reducer.

### Adding T-Branch Connection

Now, let’s connect segments of the T-shaped pipe.

1. Navigate to **CloudWorx** and enable the Pipe fitter.

![Extracting Pipe in CloudWorx for AutoCAD - Step 87.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2087.jpeg)
2. In the **Fit Pipes** dialog, do the following:
  1. Select the **Centerline** and **Cylinder** check boxes.
  2. Select the **Use Catalog** check box and select the required catalog. In this example, it’s ISO_GR1_PIPE_METRIC.
  3. Click **Fence**.

![Extracting Pipe in CloudWorx for AutoCAD - Step 88.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2088.jpeg)
3. Draw a fence around the pipe segment to extract.

![Extracting Pipe in CloudWorx for AutoCAD - Step 89.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2089.jpeg)
4. Verify the suggested catalog fit, make any necessary adjustments, and click **OK**.
  1. The pipe segment will be created.

![Extracting Pipe in CloudWorx for AutoCAD - Step 90 (1).jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2090%20(1).jpeg)
5. Go to **Fitters** and click **Connect**.

![Extracting Pipe in CloudWorx for AutoCAD - Step 91.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2091.jpeg)
6. In the **Connect Pipes** dialog, deselect the **Insert Elbow** check box so no elbow is created, and click **Pick Pipes**.

![Extracting Pipe in CloudWorx for AutoCAD - Step 92 (1).jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2092%20(1).jpeg)
7. Select both pipe segments and press **Enter** to join them.

![Extracting Pipe in CloudWorx for AutoCAD - Step 95.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%2095.jpeg)
8. CloudWorx will automatically reroute the centerline to the new connection. Now, the primary pipe should be readjusted to the reducer using the **PRESSPULL** command.
  1. On the **Solid** tab, click **Presspull**.
  2. Click the end of the pipe to be adjusted and drag it to the reducer.
  3. The pipe is adjusted correctly, and the T-branch is created.

![https://colony-recorder.s3.amazonaws.com/files/2026-03-20/badea6e2-2790-45e2-9c71-6d45c05719e0/sps-redacted-753f1f04a4064bb2bbceb4776070eb32_ff3162d142ae473ea1a50dd8f62f52ef_text_export.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/sps-redacted-753f1f04a4064bb2bbceb4776070eb32_ff3162d142ae473ea1a50dd8f62f52ef_text_export.jpeg)
9. On the **Visualize** tab, adjust the visual style to **Conceptual** to view the created geometry.

![Extracting Pipe in CloudWorx for AutoCAD - Step 100.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%20100.jpeg)

As a result, you can inspect the pipe run with segments joined by a T-branch connection and an eccentric reducer.

![Extracting Pipe in CloudWorx for AutoCAD - Step 101.jpeg](https://cdn.document360.io/820e11db-8ed5-45ae-ac86-f6b77dcb2aa7/Images/Documentation/Extracting%20Pipe%20in%20CloudWorx%20for%20AutoCAD%20-%20Step%20101.jpeg)

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