These parts can be used to stabilize the base of a Tevo Black Widow 3D printer.
The center cross brace is based on a design by Tevo's designer Chay Chen. I created the foot to ensure the ends of the base legs would rest at the same height as the center brace.
You need one center brace and four feet. I used M5 screws and T nuts, but it should work with M4 screws and T nuts if you are sure to use washers so the screw heads can't sink into the bracket's holes.
In addition to the original center base I have uploaded a version with a diamond removed from the center. I believe this version will be just as strong while saving a fair amount of filament.