3mm thick, CNC-Milled 7075 Aluminium Core Plate for R226
The core plate is the centre of the frame, and it reduces the need for locking nuts on carbon, having the bottom plate screwed directly into the core plate for a super tight and stiff fit!
Furthermore, the mounting holes fit 30.5x30.5 and 20x20 stacks, and with the use of the rubber grommets, the stack is completely soft-mounted and reduces noise generated from the motors.