How would I make two ends of a part point to two different positions?

[GoobsterX (Diamond)]

Hello, I am currently having trouble with making a garage-like door. I am attempting to make the panels follow two separate attachments and then make the position of the panel where the middle point is. I am trying to use CFrame.lookat() and CFrame.new() (CFrame.new for the positions makes the bug last longer.) but the panel seems to have its orientation changed weirdly by the lookAt (Y orientation being 0, 90 when it’s currently bugging, and 180 when it returns to the normal path). What could be causing this and what could I do to fix this or what method to use to do this? Thanks.

Here’s what’s happening:

Here’s my code:

local TS = game:GetService("TweenService")

local Garage = script.Parent
local reachedEnd = false
for i, panel: part in pairs(Garage:GetChildren()) do
	if panel.Name:find("Panel") then
		task.spawn(function()
			local num = string.split(panel.Name," ")[2]
			local tweening = false
			local tween
			local finished = false
			-- ...
			
			local group = Garage:FindFirstChild("Panel"..num.."Group").Union
			while true do
				local posA = group.Lower.WorldPosition
				local posB = group.Higher.WorldPosition
				task.wait(0.01)
				if panel.Top.WorldPosition.Y < group.MiddleGuide.WorldPosition.Y and (not tweening) then
					panel.Position = panel.Position+Vector3.new(0,0.02,0)
				elseif ((panel.Top.WorldPosition.Y >= group.MiddleGuide.WorldPosition.Y) or tweening) and not finished then
					group.Lower.Visible = true
					group.Middle.Visible = true
					group.Higher.Visible = true
					panel.CFrame = CFrame.lookAt(posA,posB) -- Problem
					group.Middle.WorldPosition = (posA+posB)/2
					panel.Position = group.Middle.WorldPosition+Vector3.new(panel.Size.X/2,0,0)
					if not tweening then
						tweening = true
						tween = TS:Create(group.Lower, TweenInfo.new(1,Enum.EasingStyle.Linear),{WorldPosition=group.MiddleGuide.WorldPosition})
						tween:Play()
						task.spawn(function()
							tween.Completed:Connect(function()
								finished = true
							end)
						end)
						TS:Create(group.Higher, TweenInfo.new(1,Enum.EasingStyle.Linear),{WorldPosition=group.HigherGuide.WorldPosition}):Play()
					end	
				end

				-- ...
			end
		end)
	end
end

[GoobsterX (Diamond)]

Hello everyone! I solved this on my own actually. I realized a really simple mistake that was right in front of me. The CFrame.lookAt first component needs a position for the target part to go to, it was going to the attachment and being oriented with it. I set some offsets when it was doing the CFrame.lookAt and I got it to go smooth! Here is what I changed it to:

panel.CFrame = CFrame.lookAt(posA,posB)+Vector3.new(panel.Size.X/2,panel.size.Y/2,0)