This set of STL and AMF files provide a printable design for a back of printer standfor up to three (3) FlashForge Creator Pro Universal Reel Sleeves. (See the manufacturerspecific reel sleeves also offered by this designer.) The sleeve stand alsodoubles as a universal rear of printer mounting bracket. It includes recessed pockets to sit over the top of printer screws and will sit flat on the back of your FlashForgeCreator Pro printer. It also includes a round recess for placing a 35mm diameter circular magnet in case you want to use the printer mounting bracket for heavier itemsor in conjunction with other FlashForge Creator Pro printer (http://www.flashforge-usa.com) accessories also offered by this designer.