u/Intrepid_Plant_8462

Hello, I'm new to 3D printers. I bought one to make things for my mother who is ill and needs many adaptations. One is an armrest for her wheelchair, but it measures 11.5 cm wide and 31 cm long. Could it be printed diagonally at a 45-degree angle? I'd like to avoid seams that might make it more fragile. Thank you.