That is "Teeth Brutalis" our table saw at Techshop
She love bite acrylic, plastic and wood
Step 30: But may be now you want return to double blade again...
... keep moving forward
Step 43: Remove the Saw Stop
Only when you go from small to big size saw you can remove the Stop Saw AFTER change the saw, otherwise
When you go to small to big diameter saw YOU NEED REMOVE THE STOP SAW FIRST
If you try to do in the wrong way
You will figure out immediately because "Two bodies can not occupy the same position in the space in the same time"