JessEm Compatible Ring Inserts for Router Lifts

**EDIT 04MAR2025:** I added a vented set of rings for downdraft dust collection. [Vented JessEm Compatible Ring Inserts for Router Lifts](https://www.thingiverse.com/thing:6969114)

I needed to replace a couple of the [ring inserts](https://jessem.com/products/10-piece-insert-ring) on my [JessEm Mast-R-Lift router table](https://jessem.com/pages/router-lifts-plates), but I wanted to see if I could duplicate it instead of just buying one because, well. . . I can.

So, I was able to successfully duplicate the insert plate, and then I made it parametric, so I just had to put in the diameter of the hole, and everything else was automatic. Then, I decided to put numbers on them to easily differentiate them.

These plates work perfectly with the JessEm Mast-R-Lift I have, and the wrench fits without issue as well. The texture on the top surface is from the Prusa textured print bed surface, which I really like.

Do not use supports. Prusaslicer complains, but they print just fine witho