For static rails that don't comfortably hold a blade, this adds some width to the blade so it slides snugly into the rack. See picture. Print with supports for the keyhole.
Print x4 or x6 of these per blade.
The scad is customizable kinda, with some tweaking. But customizing doesn't work out-of-the-box so it's disabled on thingiverse. Use your openscad skills if you need to customize it.
rail_slide_1u.scad | 1.2KB | |
rail_slide_1u.stl | 21.2KB |