Replace Door Handle

The bathroom door handle at home broke, so I found a model on MW, modified it myself, installed it, and it works well. Sharing it here. The square shaft (Figure 2) is 8x8MM and can be printed

with 45-degree placement + manual supports. Just print it directly, do not modify the supports.

5 walls 40% infill felt a bit unnecessarily heavy, so you can appropriately reduce the number of walls and infill.