Hey! I'm trying to make a gomu script, it should stretch out his arm. Here is my script 

local fakeRightArm = Instance.new("Part")
	fakeRightArm.BottomSurface = Enum.SurfaceType.Smooth
	fakeRightArm.CanCollide = false
	fakeRightArm.Massless = true
	fakeRightArm.Material = Enum.Material.Plastic
	fakeRightArm.BrickColor = RightArm.BrickColor
	fakeRightArm.Size = RightArm.Size
	fakeRightArm.CFrame = RightArm.CFrame
	fakeRightArm.Parent = character 
	fakeRightArm.Name = "fakeRightArm"
	local weld = Instance.new("WeldConstraint")
	weld.Part0 = RightArm
	weld.Part1 = fakeRightArm
	weld.Parent = character
	weld.Name = "FakeArmWeld"


	tweenService:Create(fakeRightArm, TweenInfo.new(0.3, Enum.EasingStyle.Quad), {Size = fakeRightArm.Size + Vector3.new(0, 50, 0), CFrame = fakeRightArm.CFrame * CFrame.new(0,0,-50)}):Play()

The only problem is, that it ignored the CFrame and just tweens in both directions, not only to the front.

It's probably because of the weld.

DevForum post (maybe more detailed): https://devforum.roblox.com/t/how-to-only-tween-in-one-direction/841408/42 Thank you!

AnonymousEdited