Ryobi messed up by not including an accessory track on the guide rail.

This attempts to fix that issue. You can glue the attachment on or slide it on when needed. It is designed to accept any accessories that work with Makita or Festool saws. Even though the part that bridges the bottom is super thin it is surprisingly strong if printed vertically. You should be able to scale this to any dimension you need by adjusting the Z axis.

https://www.thingiverse.com/thing:5949194/files also fits the accessory slot if you need a starting point for DIY accessories.

There is also a 90 degree adapter. It slides on and helps get the track perpendicular to the wood.

Included are the step files. If anyone wants to collaborate message me and I will send you the Onshape link.

Feb 28, 2024
I added an "improved" version. This one sticks into the guide rail about an inch and extends a little over 5 inches to the side. These improvements prevent play and make it more consistent.

Mar 4, 2024
Now there is a "stronger" version. For this one there are internal walls which make it extremely strong. I printed with 4 walls and 4 top/bottom layers. It took about 4 hours to print. I've included a picture of the internal structure.