About this 3D model

THESE CORNERS WERE DESIGNED SO THAT I COULD BUILD MY ENCLOSURE FRAME FOR MY CREALITY ENDER 3 - SO I PRINTED THEM IN A SET OF 8 - 4 LOWER CORNERS AND 4 UPPER CORNERS, USING 25MMX25MM ANGLED ALIMINIUM PIECES THAT GETS COVERED ON INSIDE OF THE FRAME WITH PLEXI GLASS