Help lerping a model

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1

I’ve just came across a youtube video where you can use bezier curves and I wanted to give it a try, so I opened studio and it worked amazingly. I wanted to try this on my current project and it’s a bit different since the game has models and not parts. I didn’t think it would be an issue since I can just use the primary part, but I put in the code and nothing happens. I’m basically just trying to lerp the model from 1 position to the other. I have a part that spawn 50 studs out on the Z axis so it can curve to the player, but nothing seems to happen, I thought it may be from the PrimaryPart, but I have no idea.

Here is the code I used:

UpdateClient.OnClientEvent:Connect(function(ingredientInstance)
	local hasTool = checkForTool(plr)

	if hasTool then
		local bopSound = Instance.new("Sound")
		bopSound.SoundId = "rbxassetid://10254751627"
		bopSound.PlayOnRemove = true
		bopSound.Parent = script

		local fruitVal = ingredientInstance

		local HRP = plr.Character.HumanoidRootPart

		if fruitVal ~= nil then
			local char = plr.Character
			local HRP = char.HumanoidRootPart

			bopSound:Destroy()

			local lerpPart = Instance.new("Part", workspace)
			lerpPart.Name = "lerpPart"
			lerpPart.Position = fruitVal.PrimaryPart.Position + Vector3.new(0, 0, 50)
			lerpPart.Color = Color3.fromRGB(0,0,0)
			lerpPart.Anchored = true
			lerpPart.Massless = true
			lerpPart.CanCollide = false

			for i = 0, 10, wait() do
				local t = i / 10

				local l1 = lerp(fruitVal.PrimaryPart.Position, lerpPart.Position, t)
				local l2 = lerp(lerpPart.Position, HRP.Position, t)

				local quad = lerp(l1, l2, t)

				fruitVal.PrimaryPart.Position = quad
				task.wait(1)
			end
		end
	end
end)