Character orientation keeps getting messed up when creating hitbox visual using RigidConstraints

[GeoSailor (Geo)]

I’m trying to create a hitbox visual for characters. The hitbox should follow the character’s HumanoidRootPart and maintain a specific orientation. (0, 0, 90)

The problem is the character keeps flipping around and the orientation goes back to the default (0, 0, 0)
Video of what’s currently happening:

What I want:

I’m using RigidConstraints and Attachments to do this.

Code:

local rig = workspace.Rig
local humanoidRootPart = rig.HumanoidRootPart
local baseAttachment = humanoidRootPart.BaseAttachment

local function createHitbox(radius)
	local hitbox = Instance.new("Part")
	hitbox.Shape = Enum.PartType.Cylinder
	
	hitbox.Size = Vector3.new(1, radius, radius)
	
	hitbox.CFrame = CFrame.new(baseAttachment.WorldPosition)
	hitbox.Orientation = Vector3.new(0, 0, 90)
	
	hitbox.Color = Color3.fromRGB(200, 0, 0)
	hitbox.Transparency = 0.5
	hitbox.CanCollide = false
	hitbox.Material = Enum.Material.Neon
	
	local hitboxAttachment = Instance.new("Attachment", hitbox)

	local rigidConstraint = Instance.new("RigidConstraint", humanoidRootPart)
	rigidConstraint.Attachment0 = humanoidRootPart.BaseAttachment
	rigidConstraint.Attachment1 = hitboxAttachment

	hitbox.Parent = rig
end

createHitbox(32)

[GeoSailor (Geo)]

I’ve gotten closer to what I want but it wobbles now.

local rig = workspace.Rig
local humanoidRootPart = rig.HumanoidRootPart
local baseAttachment = humanoidRootPart.BaseAttachment

local function createHitbox(radius)
	local hitbox = Instance.new("Part")
	hitbox.CanCollide = false
	hitbox.Size = Vector3.new(1, radius, radius)
	
	hitbox.Shape = Enum.PartType.Cylinder
	hitbox.Color = Color3.fromRGB(200, 0, 0)
	hitbox.Transparency = 0.5
	hitbox.Material = Enum.Material.Neon
	
	local hitboxAttachment = Instance.new("Attachment", hitbox)
	hitboxAttachment.CFrame = CFrame.Angles(0, 0, math.rad(90))

	local rigidConstraint = Instance.new("RigidConstraint", humanoidRootPart)
	rigidConstraint.Attachment0 = humanoidRootPart.BaseAttachment
	rigidConstraint.Attachment1 = hitboxAttachment

	hitbox.Parent = rig
end

createHitbox(32)

[Frostholl (Frost)]

make the hitbox part massless by doing
hitbox.Massless = true

also use welds instead since they’re actually suited for this

local weld = Instance.new("Weld")
weld.Part0 = humanoidRootPart
weld.Part1 = hitbox
weld.C0 = CFrame.Angles(0, 0, math.rad(90))
weld.Parent = hitbox

[GeoSailor (Geo)]

@Frostholl

hitbox.Massless = true

Thank you, making it massless worked even with RigidConstraints.

local rig = workspace.Rig
local humanoidRootPart = rig.HumanoidRootPart
local baseAttachment = humanoidRootPart.BaseAttachment

local function createHitbox(radius)
	local hitbox = Instance.new("Part")
	hitbox.CanCollide = false
	hitbox.Massless = true
	hitbox.Size = Vector3.new(1, radius, radius)
	
	hitbox.Shape = Enum.PartType.Cylinder
	hitbox.Color = Color3.fromRGB(200, 0, 0)
	hitbox.Transparency = 0.5
	hitbox.Material = Enum.Material.Neon
	
	local hitboxAttachment = Instance.new("Attachment", hitbox)
	hitboxAttachment.CFrame = CFrame.Angles(0, 0, math.rad(90))

	local rigidConstraint = Instance.new("RigidConstraint", humanoidRootPart)
	rigidConstraint.Attachment0 = humanoidRootPart.BaseAttachment
	rigidConstraint.Attachment1 = hitboxAttachment

	hitbox.Parent = rig
end

createHitbox(32)