Bentobox V2 base for Centauri Carbon with magnets

My modification of the Bentobox V2 base unit for the Centauri carbon. The screw mountings and recess on the underside have been removed. A recess has been added to clear the frame ledge inside the Centauri Carbon and allow the base to push right back against the side panel. Two 10mm x 3mm recesses added to the underside to hold magnets which will hold the unit in place against the print baseplate. Some supports will be needed for the recess along the rear corner, and for the magnet recesses. Use the original Bentobox V2 model for the rest of the filter, Printed without issue on Centauri Carbon in Elegoo PETG Rapid