It would be extremely helpful to have more info such as kind of wood, blade name and info, and what saw you are using. Please show us what you cut and how it failed.
The more you tell us the better we can help. The less we know, the more we are just guessing.
I have cut 1.5" 3d items on my Hegner, from Red Oak, Ash, Maple, and Walnut with FD Polar #5 blades.