# WeldConstraint

Roblox Engine API class from Roblox Studio 0.744.0.7441077 (version-7aaa6838d36c4448).

- Inherits from, nearest first: [Instance](https://rapi.sleaze.dev/classes/Instance.md), [Object](https://rapi.sleaze.dev/classes/Object.md)
- Memory category: BaseParts
- HTML page: https://rapi.sleaze.dev/classes/WeldConstraint/
- Roblox documentation: https://create.roblox.com/docs/reference/engine/classes/WeldConstraint

Connects two `BaseParts` together such that their relative position and orientation remain the same.

## Properties

### Active

```luau
WeldConstraint.Active: boolean = false
```

- Tags: Read only, Read capabilities: Physics, Save only, Simulation access

Indicates if the WeldConstraint is currently active in the world.

### Enabled

```luau
WeldConstraint.Enabled: boolean = true
```

- Tags: Not replicated, Read capabilities: Physics, Load only, Simulation access

Toggles the constraint on and off.

### State

```luau
WeldConstraint.State: number = 3
```

- Tags: Hidden, Not scriptable, Read capabilities: Physics, Simulation access

### CFrame0

```luau
WeldConstraint.CFrame0: CFrame = CFrame.identity
```

- Tags: Hidden, Not scriptable, Read capabilities: Physics, Simulation access

### CFrame1

```luau
WeldConstraint.CFrame1: CFrame = CFrame.identity
```

- Tags: Hidden, Not replicated, Not scriptable, Read capabilities: Physics, Load only, Simulation access

### Part0

```luau
WeldConstraint.Part0: BasePart
```

- Tags: Not replicated, Read capabilities: Physics, Load only, Simulation access

The first part connected by the constraint.

### Part0Internal

```luau
WeldConstraint.Part0Internal: BasePart
```

- Tags: Hidden, Not scriptable, Read capabilities: Physics

### Part1

```luau
WeldConstraint.Part1: BasePart
```

- Tags: Not replicated, Read capabilities: Physics, Load only, Simulation access

The second part connected by the constraint.

### Part1Internal

```luau
WeldConstraint.Part1Internal: BasePart
```

- Tags: Hidden, Not scriptable, Read capabilities: Physics

## Inherited members

- From [Instance](https://rapi.sleaze.dev/classes/Instance.md): `Archivable`, `archivable`, `Attributes`, `AttributesReplicate`, `AttributesSerialize`, `HistoryId`, `Name`, `Parent`, `PredictionMode`, `PropertyStatusStudio`, `RobloxLocked`, `SerializedOverrides`, `SourceAssetId`, `Tags`, `UniqueId`, `numExpectedDirectChildren`, `DataCost`, `Capabilities`, `DefinesCapabilities`, `IsInSandbox`, `Sandboxed`, `AddTag`, `ClearAllChildren`, `Clone`, `Destroy`, `FindFirstAncestor`, `FindFirstAncestorOfClass`, `FindFirstAncestorWhichIsA`, `FindFirstChild`, `FindFirstChildOfClass`, `FindFirstChildWhichIsA`, `FindFirstDescendant`, `GetActor`, `GetAttribute`, `GetAttributeChangedSignal`, `GetAttributes`, `GetChildren`, `GetDebugId`, `GetDescendants`, `GetFullName`, `GetStyled`, `GetStyledPropertyChangedSignal`, `GetTags`, `HasTag`, `IsAncestorOf`, `IsDescendantOf`, `IsPropertyModified`, `QueryDescendants`, `RemoveTag`, `ResetPropertyToDefault`, `SetAttribute`, `WaitForChild`, `Remove`, `children`, `clone`, `destroy`, `findFirstChild`, `getChildren`, `isDescendantOf`, `remove`, `AncestryChanged`, `AttributeChanged`, `ChildAdded`, `ChildRemoved`, `DescendantAdded`, `DescendantRemoving`, `Destroying`, `StyledPropertiesChanged`, `childAdded`
- From [Object](https://rapi.sleaze.dev/classes/Object.md): `ClassName`, `className`, `GetPropertyChangedSignal`, `IsA`, `isA`, `Changed`