With this kit you get the standard base kit to put together your next CNC platform. The kit includes CNC machined aluminum plates (made out of T6-6061) and anodized Red as shown in the pictures. All the plates are pre-drilled to accept 20, 40, 60 and 80 series aluminum extrusions with a 20mm hole pattern (where applicable). These plates are primarily made for the C-Beam extrusions that conform to the 40mm x 80mm standard. This includes the following: 2pc Gantry Plates (10mm Thick Plates) - These Y-Axis plates can be driven using 20mm Linear Block Bearings and 16mm BallScrews or using OX CNC Belt Drive and OpenBuilds V-Wheels  4pc X-Axis Drive Plates - The X-Axis plates are designed to accept 15mm Linear Block Bearings and 16mm Ballscrews. They are carefully designed to conform around the C-Beam to create the perfect X-Axis drive mechanism