The top cover enclosure for the Wanhao Duplicator 4S is not secured in any way and might even slide of the printer if you accidentally bump into it. To solve this problem we designed this simple bracket to fix the position of the top cover on top of the 3D printer. Print 4 of these and put 1 in each corner as seen in the pictures and your top cover will be in a secure position on your printer. 　 　 * * * By Creative Toolshttp://Creative-Tools.com