Finger Joint offset plate for router table

I recently got a finger joint router bit and instead of making a tiny adjustment every time I need to make the opposing side, I wanted to make a jig to raise the work piece. (and no you can't just flip the second piece to make the matching cut)

This jig is 3.8mm thick.

I'd like to make the plate longer but am limited by the size of my print bed. The solution for now has been to print two plates (pictured).

I added a slot to the jig so I can attach the miter bars from my Kreg featherboard to hold it in place. You could also print the miter bars and knobs from another Thing such as: https://www.thingiverse.com/thing:1795001