CFrame with wrong value

[GGreenBBoy123]

I want to weld a shotgun on my left arm. And I use the following script.

local Players = game:GetService("Players")
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local shotgun = ReplicatedStorage.Shotgun

Players.PlayerAdded:Connect(function(player)
	player.CharacterAdded:Connect(function(character)
		local RightArm = character:FindFirstChild("Right Arm")
		local shotgunClone = shotgun:Clone()
		if not RightArm or not shotgunClone then return end
		
		shotgunClone.Parent = character
		local motor6D = Instance.new("Motor6D")
		motor6D.Parent = RightArm
		motor6D.Name = "shotgun"
		motor6D.Part0 = RightArm
		motor6D.Part1 = shotgunClone
		motor6D.C0 = CFrame.new(0.011, -1.557, -0.5) * CFrame.Angles(math.rad(90), math.rad(180), 0)
	end)
end)

However, the orientation value is not 90, 180, 0. the value is like this, why? How to fix this?

[Yarik_superpro (Yarik)]

Everything is right
You need to understand how euler’s math works to use CFrame.fromEulerAnglesXYZ() format (CFrame.Angles)
For now use

CFrame.fromEulerAnglesYXZ(mapth.pi*0.5,math.pi,0)

math.pi = 180 degrees if you dont get it

[Jayigon]

@GGreenBBoy123

motor6D.C0 = CFrame.new(0.011, -1.557, -0.5) * CFrame.Angles(math.rad(90), math.rad(180), 0)

Everything else seemed fine except for when you multiplied the position CFrame with CFrame.Angles(math.rad(90), math.rad(180), 0) which is the equivalent to CFrame.EulerAnglesXYZ(math.pi/2,math.pi,0) or CFrame.fromRotation(math.pi/2,math.pi,0). To convert from degrees to radians, math.rad(90) is the same as math.pi/2 and to convert radians to degrees, math.pi is the same as math.rad(180). The thing is you would have to use an orientation instead of a rotation based on the order of CFrame axes (YXZ vs XYZ). Use CFrame.EulerAnglesYXZ(math.rad(90), math.rad(180), 0) or CFrame.fromOrientation(math.rad(90), math.rad(180), 0).
An example of someone who has dealt with this issue:

How do I get the camera to rotate relative to the player?

In a commission, I’m attempting to add a tilt to the player when ‘ZValue’ in a module is changed. However, when the camera is oriented differently, it doesn’t fully translate to a shift in the Z-Axis. Here’s an example: I understand it has to do with the camera shifting orientations automatically when you turn it, but I’ve attempted converting the camera to the object space–relative to the character–and changing the orientation via that, but that came out dysfunctional as well. Here…

Try this:

motor6D.C0 = CFrame.new(0.011, -1.557, -0.5) * CFrame.fromOrientation(math.rad(90), math.rad(180), 0)`