Dave, most of the puzzles I cut are from 7/8” to 1”. It is difficult to cut that thick of wood without beveling the edges. However, it is doable. The trick is to be conscious of what you are doing. All to often, we just zip through the cut without worrying about how the blade is cutting as long as you stay on the line. It is important to not push on the blade laterally. That is, when you are turning the wood into the blade. As you are cutting into a curve, stop occasionally to let the blade catch up. Sometimes, you will actually see the blade straighten up. Set your blade speed high. You might even use a larger blade. One important trick that works for me is to use a pivot point. What does that mean? When I’m cutting, I use a finger to creat a pivot. Witch ever finger is closet to the blade as you are turning the wood. Push down with that finger. As you turn the wood, it will pivot where you are pushing down. This will help keep the wood blank turning with out pushing on the side of the blade blade.
larger blade, higher speed, slower feed rate and pivot point. You can do it!