How to make a backpack which is a mesh, go to your back in r6

[cheshnut (ruby)]

I am not very good at this field. I think the title itself is self explanatory. I have a mesh part that would like to be on the back of my player. PS : It is R6. Thank you!

[taner60]

before the writing code you need to set these things if you have a realistic backpack

if the blue dot (that appears when you click the model) looks like the picture above. You need to set pivot position like the picture below.

To do this:
1- Click the backpack
2- Go to the properties
3- Find the property “PivotOffset”
4-

5- Change the position(Z offset of the position) until blue dot comes to the middle of the backpack like the last backpack photo i added.

insert a new script to the ServerScriptService and write this:

function weldParts(object,target)
	local weld = Instance.new("Weld")
	weld.Parent = object
	weld.Part0 = object
	weld.Part1 = target
	return weld
end

function checkpos(pos)
	if pos.Z < 0 then
		return Vector3.new(pos.X,pos.Y,pos.Z*-1)
	else
		return pos
	end
end

game.Players.PlayerAdded:Connect(function(player)
	player.CharacterAdded:Connect(function(character)
		local backpack = YOURBACKPACK:Clone()
		local torso = character:WaitForChild("Torso")
		backpack.Anchored = false
		
		local weld = weldParts(torso,backpack)
		backpack.Parent = workspace --// you can set it to character
		local pos = checkpos(backpack.PivotOffset.Position)
		weld.C1 = CFrame.new(pos) * CFrame.Angles(0,math.rad(180),0)
	end)
end)

[cheshnut (ruby)]

Thank you so much, FYI for users looking at this post. It must only be a mesh and nothing else.