I'm confused. Why not just use your rip fence?

Many advantages in using bevel sled over rip fence to cut bevels:
1. It would be dangerous to use the rip fence, to cut a bevel, on the end of a long narrow piece, as would be typical in making a box. The bevel sled makes this cut safe.
2. The bevel sled makes the cut perpendicular to the edge against the sled fence.
3. The bevel sled allows clamping down, of the piece to be cut, so that the cut is accurate even if the piece has a slight warp.
4. The bevel sled allows two flip stops so that sides and ends of box can be cut without changing set up.

Hope this helps

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