The Bosch Router Table comes with 3 different sizes of insert rings for their router table. The tabs on these Bosch rings break off easily and the height of the rings aren't level with the top of the table. I designed my rings to offer more sizes ( 8 total) to give more choices. Having a insert ring that more closely matches the router bit size improves dust collection and provides better stability for small wood pieces. I also designed these to be flush with the top of the router table. This improves accuracy of your cut on small wood pieces.  Finally, my first design had the 4 tabs almost identical to the Bosch design. I found that these tabs broke easily. I beefed them up with a different design so that breakage rarely occurs. The result is a much tighter fit. When installing the first time it may take a little tap from your fist, piece of wood, or rubber mallet. They do fit more loosely the second time. If too tight due to router table or 3D print tolerances or user preference, you can scale X and Y in your Slicer by maybe 99.9 or 99.8% to adjust the fit. To remove, I provided slots at each tab to insert a flat bladed screw driver to easily pry out the ring.

I also included a case to store your rings and a ring with no hole to install when your router table isn't in use.

I Printed mine with PLA however PETG or ASA might be a better choice. I printed with 0.2mm layer height and 4 wall loops to ensure strong tabs. No supports are required.

These rings are intended for the following Bosch products. Note, there may be other products however that these work with; download, print one, and give it a try:

      Bosch 2610938414 Adapter Plate

      Bosch RA1181  Benchtop Router Table

      Bosch RA1180  Benchtop Router Table

      Bosch RA1171  Benchtop Router Table

Please: when using your router table follow all safety procedures given by Bosch and your router manufacturer. Use push sticks, push blocks, and feather boards were applicable to protect those fingers especially when routing small pieces of wood.