Position new part with different size, but gap is staying the smae

[bletDemonJH (Blet)]

Im trying to make path and each time new part will be summoning it will be 1.5 bigger than a last one.

here is my script:

local temp = script.Parent.Part

local times = 1

local function colorPart()
	if times == 1 then
		temp.BrickColor = BrickColor.new("Pink")
	elseif times == 2 then
		temp.BrickColor = BrickColor.new("Shamrock")
	elseif times == 3 then
		temp.BrickColor = BrickColor.new("Daisy orange")
	elseif times == 4 then
		temp.BrickColor = BrickColor.new("Bright blue")
		times = 1
	end
end

for i=1,50 do
	local newTemp = temp:Clone()
	newTemp.Parent = script.Parent
	newTemp.Size = Vector3.new(temp.Size.X*1.5,temp.Size.Y,temp.Size.Z)-- this line positiong is wrong
	newTemp.Position = Vector3.new(temp.Position.X,temp.Position.Y,temp.Position.Z+newTemp.Size.X)
	temp = newTemp
	colorPart()
	times += 1
	wait()
end

Once i run it it will look like this:

problem is with positiong it right, i want no gap between, like this:

[bytesleuth]

local temp = script.Parent.Part

local times = 1

local function colorPart()
	if times == 1 then
		temp.BrickColor = BrickColor.new("Pink")
	elseif times == 2 then
		temp.BrickColor = BrickColor.new("Shamrock")
	elseif times == 3 then
		temp.BrickColor = BrickColor.new("Daisy orange")
	elseif times == 4 then
		temp.BrickColor = BrickColor.new("Bright blue")
		times = 1
	end
end

for i=1,50 do
	local newTemp = temp:Clone()
	newTemp.Parent = script.Parent
	newTemp.Size = Vector3.new(temp.Size.X*1.5,temp.Size.Y,temp.Size.Z)-- this line positiong is wrong
	newTemp.Position = Vector3.new(temp.Position.X,temp.Position.Y,temp.Position.Z+newTemp.Size.X / 2 + temp.Size.X / 2)
	temp = newTemp
	colorPart()
	times += 1
	wait()
end