Corsair K63 lapboard insert (one or two pieces)

I have a Corsiar K63 lapboard/keyboard that on occasion I want to use as a laptop desk for my laptop, but when the keyboard is removed, there is a big open spot that does not support a laptop well. I designed an insert to fit into the empty spot that should fit around the latches and be flush. It's too large (wide) for most 3D printers, so in addition to the one piece, Also cut it in two to fit on the stages of most smaller 3D printers.