Struggling to get a vertical hinge to point at a part

[Aviation_Joe (Joe)]

I have 2 hinges setup - one to move horizontally and one to move vertically.

I want the hinges to find a part and point to it.

My horizontal hinge is working fine, however the vertical one seems to struggle to actually point at the right place. It almost seems like the part has to be the perfect distance for it to correctly point at it.

Here is my code:

local PartToTrack = script.ToTrack
repeat task.wait() until PartToTrack.Value ~= nil

local Horizontal = script.Parent.Rotate.Horizontal.RotateAround.HingeConstraint
local Vertical = script.Parent.Rotate.Horizontal.Vertical.RotateAround.HingeConstraint
local VerticalPos = script.Parent.Rotate.Horizontal.Vertical:FindFirstChild("Head") or script.Parent.Rotate.Horizontal.Vertical:FindFirstChild("RotateAround")

function ComputeTargetAngleY(TargetPos, StartPos)
	local X = TargetPos.X - StartPos.X
	local Y = TargetPos.Y - StartPos.Y
	local Angle = math.atan2(X, Y)
	Angle = math.deg(Angle)
	return Angle + 90
end

function ComputeTargetAngleX(TargetPos, StartPos)
	local X = TargetPos.Y - StartPos.Y
	local Z = TargetPos.Z - StartPos.Z
	local Angle = math.atan2(X, Z)
	Angle = math.deg(Angle)
	return Angle + 90
end

game:GetService("RunService").Heartbeat:Connect(function()
	Horizontal.TargetAngle = ComputeTargetAngleX(PartToTrack.Value.Position, Horizontal.Parent.Position)

	Vertical.TargetAngle = ComputeTargetAngleY(PartToTrack.Value.Position, VerticalPos.Position)
end)

Cheers

(Edit: and no, removing the +90 does not help)

[dthecoolest]

Tank Turret faces correctly until I rotate and it somehow inverts?

This function should work for all types of hinge constraints: local function calculateServoAngle(hinge, targetPosition) local baseAttachment = hinge.Attachment0 local object_horizontal_offset = (baseAttachment.WorldCFrame):PointToObjectSpace(target.Position) local object_yaw_angle = math.atan2(object_horizontal_offset.Y, -object_horizontal_offset.Z) object_yaw_angle = math.deg(object_yaw_angle) return object_yaw_angle end

[Aviation_Joe (Joe)]

Oh my god thank you so much! Works perfectly and I adjusted it to work for both vertical and horizontal