Fixture Block

I started by drawing the left profile of the model. After drawing the side, I extruded it by 100 mm to get the general shape for the model. I made 4 groups of cuts after extruding the side profile: The half circle with a 20mm depth on the top of the model, a 45mm cut in the middle of the cylinder and rectangular prism at the front of the object, the corner of the model, and the 3 cuts at the bottom near the front, flat part of the model. I did this by drawing the general shape of the hole and using the extruded cut toll.