This is the zero clearance insert for sawstop. You can either use it by printing  in ABS or PETG (I used PETG) or you can use it as a template to cut a wooden one on your band saw. I bought a model to print from [https://cults3d.com/en/orders/154268234](https://cults3d.com/en/orders/154268234) but it didn't fit well … So I learned fusion 360 and created my own. Let me know if you need any improvements. I can send you the f3d file (fusion360 file) as well.