It's a Guide Bush adaptor base for Ryobi One+ trim router.
I recommend printing at 0.15mm layer height for accuracy and setting the perimeters to 4 for strength.
See the video here; https://www.youtube.com/watch?v=pUN3ngCHsDw
I recommend printing at 0.15mm layer height for accuracy and setting the perimeters to 4 for strength.
The author marked this model as their own original creation.