Available at https://wiretools.etsy.com/

The Specs:
- 1 3d printed part (print in place)
- 1 adjustment screw
- 1 pressure bar

The Why:
The 3/4 ply can be a decent miter bar on the fly, but it expands and shriks with the seasons big time.
So growing tired of having to push on my jigs like it's the end of the world, I looked online for adjustable 3d printable ones (plastic certainly moves less with seasons). Everybody seems to copy the expandable washer idea, which is not bad, but it suffers from having a minimal point of contact with the side of the channel, so I came upo with this idea of an adjustable compliant side-bar.