Roblox UtilitiesDevlHub Roblox Documentation

Class

JointInstance

NotCreatable
Inherits
Instance › Object
Memory category
BaseParts
Subclasses
8

The base class for joints.

JointInstance is the base class for joints such as Welds and Motors.

Weld, WeldConstraint, Motor, and Motor6D all combine multiple parts into the same assembly. Every assembly has a root part (BasePart:GetRootPart()) and when C0/C1 of a JointInstance is modified, the root part will stay where it was.

Welds do not have any directionality. You can imagine rigid joints forming a tree branching down from the root part. All the parts down the tree from root will move, and their welded "children" in this tree will move with them.

Properties 7#

ActivebooleanDetermines if the joint is currently active in the world.ReadSafeReadOnlyNotReplicated
C0CFrameDetermines how the offset point is attached to JointInstance.Part0.ReadSafe
C1CFrameSubtracted from the C0 property to create an offset point for Part1.ReadSafe
EnabledbooleanSets whether the joint is active or not.ReadSafe
Part0BasePartThe first BasePart that the joint connects.ReadSafe
Part1BasePartThe second BasePart that the joint connects.ReadSafe
part1BasePartReadSafeDeprecatedHiddenNotReplicated

Active: boolean#

ReadOnlyNotReplicatedReadSafe

This property determines if the joint is currently active in the world.

If the JointInstance is not in Workspace or JointsService, or one of its parts is not in Workspace, the joint will be inactive.

Rigid joints like Weld, Snap, WeldConstraint, Motor, or Motor6D may also be disabled due to conflicts with other rigid joints, such as joints between the same two parts or indirect cycles in the weld graph. Joints disabled this way may be re-enabled later when another joint or part is added or removed.

C0: CFrame#

ReadSafe

C0 is the position aspect of the orientation between two parts in a weld. Part0 and Part1 move accordingly to this value, which denotes their respective positions.

When animating a Motor6D, it's recommended to tween its Transform property instead of C0.

C1: CFrame#

ReadSafe

This property is subtracted from the C0 property to create an offset point for Part1.

When animating a Motor6D, it's recommended to tween its Transform property instead of C1.

Enabled: boolean#

ReadSafe

This property sets whether the joint is active or not.

When this property is set to true and the joint's Part0 and Part1 properties are set, the joint will ensure that its two parts will be connected and behave according to joint type.

See also Active which determines if the joint is currently active in the world.

Part0: BasePart#

ReadSafe

This property indicates the first BasePart that the joint connects.

Part1: BasePart#

ReadSafe

This property indicates the second BasePart that the joint connects.

part1: BasePart#

HiddenNotReplicatedDeprecatedReadSafeDeprecated

Deprecated. This deprecated property is a variant of Part1 which should be used instead.

Inherited members#

Inherited from Instance 58
Properties (10)

Archivable, archivable, Capabilities, IsInSandbox, Name, Parent, PredictionMode, RobloxLocked, Sandboxed, UniqueId

Methods (39)

AddTag, children, ClearAllChildren, Clone, clone, Destroy, destroy, FindFirstAncestor, FindFirstAncestorOfClass, FindFirstAncestorWhichIsA, FindFirstChild, findFirstChild, FindFirstChildOfClass, FindFirstChildWhichIsA, FindFirstDescendant, GetActor, GetAttribute, GetAttributeChangedSignal, GetAttributes, GetChildren, getChildren, GetDebugId, GetDescendants, GetFullName, GetStyled, GetStyledPropertyChangedSignal, GetTags, HasTag, IsAncestorOf, IsDescendantOf, isDescendantOf, IsPropertyModified, QueryDescendants, Remove, remove, RemoveTag, ResetPropertyToDefault, SetAttribute, WaitForChild

Events (9)

AncestryChanged, AttributeChanged, ChildAdded, childAdded, ChildRemoved, DescendantAdded, DescendantRemoving, Destroying, StyledPropertiesChanged

Inherited from Object 6
Properties (2)

ClassName, className

Methods (3)

GetPropertyChangedSignal, IsA, isA

Events (1)

Changed

Subclasses 8#

DynamicRotate, Glue, ManualSurfaceJointInstance, Motor, Rotate, Snap, VelocityMotor, Weld