Anet A8 back brace

thingiverse

I'm reworking thingiverse part 2083254 with some major improvements. The previous version's wobbly vertical stability and fragile motor mount were major drawbacks, especially with the y-axis belt tension causing it to bend excessively. I'm also not a fan of vertically printed round holes, but I do appreciate the benefits of shifting the tension forces to the threaded rods, eliminating the need for acrylic frame pieces. This revised version adds a sturdy vertical brace to the motor mount and replaces the motor pulley hole with a hexagon, which prints beautifully in a vertical orientation. Plus, no holes are drilled into the base! I've been testing my reworked design on an A8 3D printer, and even under full y-axis belt tension, there's minimal deflection of the vertical support holding the motor plate. My rear acrylic plate is now flat again, and as a bonus, the Y axis motor operates much quieter.