Part position and Vector3.new() help?

When you set the position of a part already in the Workspace, it places it at that position. However, it the checks if the part is colliding with any other parts. If so, it will put it at the highest point above that position where it no longer collides with parts.

To fix this, you can enclose your positions in a Crame.new, and apply it to script.Parent's CFrame. I did this below for you to see. Also, I'd recommend using a iteration loop instead of manually writing out each individual position! :)

Also note that the minimum time a wait() can, well, wait is 0.03. Anything below that automatically changes to that, so you might as well not supply a value to your wait()s at all.

while true do
    script.Parent.CFrame = CFrame.new(Vector3.new(-31.4, -0.985, 1.695))
    for i=1,4 do
    wait()
    script.Parent.CFrame = CFrame.new(script.Parent.Position + Vector3.new(0,0.2,0))
    end
    wait()
    script.Parent.CFrame = CFrame.new(Vector3.new(-31.4, 0.015, 1.695))
    wait()
    script.Parent.CFrame = CFrame.new(Vector3.new(-31.4, -0.185, 1.695))
    for i=1,3 do
    wait()
    script.Parent.CFrame = CFrame.new(script.Parent.Position - Vector3.new(0,0.2,0))
    end
     wait()
end

Sorry that the spacing is terrible, I blame iPads.

If you need any more help, feel free to let me know! :)