floating corner shelf

Updated design to act as a square shelf. This is using almost everything on a 256x256 build plate but prints into one continuous shelf. Had to reduce the size slightly from original. The bracket is also tighter which helps with support of the extension. Features:Added supports to strengthen the fastener areas, this can be adjustedA hole for cables (optional)Added an extension (optional) to turn model from a triangular to square shelfOptional TPU topper, this would be glued to model