1.The material is cherry wood.

2.The end table face of the scroll saw is curved.

3.Drilling.

4.Put a insert nut.

5.Tapping M5.

6.Attach the bracket using the M5 round head screw.

I was a trial cutting. But blades deviates inside. I was not able to cut to a perfect circle.
The problem has not been resolved by the adjustment