Reconnect MEP Runs

Reconnect MEP Runs repairs broken logical connectivity in copied or edited MEP systems. It scans duct, pipe, conduit, and cable tray elements for open connectors that are close enough to belong together, then reconnects them so runs behave like continuous systems again.

Getting Started

Find Reconnect MEP Runs in the Utilities pulldown on the Amorphous ribbon tab.

Use this command after copy and paste operations, coordination imports, or model cleanup when MEP elements appear to touch but no longer tab-select as a single run.

Features

Flexible scope - Scan the Active View, current Selection, or the entire Project
System filtering - Limit processing to Duct, Pipe, Conduit, and Cable Tray runs
Tolerance presets - Choose from common reconnect distances or enter a custom value
Closest-first pairing - Reconnects the nearest valid open connectors first
Results summary - Reports how many elements were scanned, how many connectors were found, and how many pairs were connected

How to Use

Basic Workflow

Open Utilities and click Reconnect MEP Runs
Choose the scan scope: Active View, Selection, or Project
Leave all system types enabled or uncheck the ones you do not want to process
Choose a reconnect tolerance preset or enter a custom decimal inch value
Click OK
Review the summary dialog after processing completes

Scope Options

Scope	What It Scans
Active View	Visible MEP elements in the current view
Selection	Only the currently selected elements
Project	All supported MEP elements in the project

Supported Systems

System	Included Elements
Duct Runs	Ducts, flex ducts, fittings, accessories, terminals
Pipe Runs	Pipes, flex pipes, fittings, accessories, plumbing fixtures
Conduit Runs	Conduit, fittings, electrical equipment, electrical fixtures
Cable Tray Runs	Cable tray and fittings

Tolerance Options

Reconnect MEP Runs only connects open connectors that are within the chosen tolerance.

Preset	Distance
1/8”	3 mm
1/2”	13 mm
1”	25 mm
6”	150 mm
12”	300 mm
Custom	Any decimal inch value you enter

Results

After the command finishes, a summary dialog reports:

Elements scanned
Open connectors found
Connector pairs reconnected

If no supported MEP elements are found in the chosen scope, the command reports that nothing was available to process.

Use Cases

Scenario	Recommended Approach
Copied conduit run will not tab-select as one system	Run the command on the copied selection with Conduit enabled
Imported coordination area has broken pipe connections	Use Active View scope and enable Pipe Runs only
Large project cleanup after repeated copy and paste work	Run Project scope with a conservative tolerance
Troubleshooting one local area	Select the affected elements first, then use Selection scope

Tips & Best Practices

Run it right after copy and paste while the affected area is easy to isolate
Filter by system type so you only process the systems you care about
Use smaller tolerances first to reduce accidental reconnections
Work in a focused view when validating results visually after the command finishes

Limitations

Limitation	Details
Supported categories only	Only the listed MEP systems are scanned
Proximity-based reconnect	The command reconnects nearby open connectors. It does not infer design intent beyond distance and connector compatibility
View scope depends on visibility	Hidden elements in the active view are not included when using Active View scope

Troubleshooting

Nothing was reconnected

Possible causes:

No supported MEP elements were found in the chosen scope
The connectors are farther apart than the selected tolerance
The affected system type was unchecked

Solution: Widen the scope, increase the tolerance carefully, or enable the missing system type.

Some runs still appear disconnected