Nowadays, improved and viable sheet metal forming techniques can provide high-quality products with less production time, less setup costs, and more flexibility for complex parts. The Single-Point Incremental Forming (SPIF) method is a new technology that contributes to solving many problems of the conventional sheet forming process in terms of greater flexibility, low cost, short production time, and suitability for small batches, especially in the field of mold. This process is easily performed on CNC machining centers with a rotary shaping tool that moves along predetermined trajectories corresponding to the desired shape's contours. In this study, the square pyramid details made of Al1050 sheet were formed by using the SPIF method. The wall angle was changed from 80 to 60° to evaluate its influence on forming force and fracture height. The results showed that cracks appeared early with a fracture height of 12.16 mm when forming at an 80° wall angle. When the wall angle decreased, the fracture height tended to increase. Besides, when the forming angle was from 65 to 60°, the square pyramid part did not appear to be destroyed, the detail reached its maximum height. In addition, the forming force increased when the forming angle decreased from 80 to 60°