Wasteboard (33.5 x 16.5) with CC corner guide brackets

To be able create this large wasteboard, use a precut 33.5" x 16.5" x .75" piece of MDF. Center piece laterally (along Y-Axis) and leading edge flush (parallel) with front of original wasteboard. Requires 132 threaded inserts: https://shop.carbide3d.com/collections/workholding/products/threaded-inserts-qty-100?variant=31454283956285 Carbide Create Bracket: https://shop.carbide3d.com/collections/workholding/products/carbide-corner-square-guides?variant=31487905988669 Endmills required: CC #201 (or equivalent 1/4" upcut ) for most of project, and CC #251 (or equivalant 1/4" downcut) for recessing the brackets. I have also included the simple wasteboard version file without the Carbide Create Corner Bracket system.