Love this! I made myself one https://www.youtube.com/watch?v=RBz58OU9QUA (well based off. Close enough) and going to make another (https://openbuilds.com/builds/makersl-style-vice-using-just-off-the-shelf-parts-nb-untested-wip.5873/)
MakerSL MSL-8 OB Vise
Build in 'Everything Else' published by Sonny Lowe, Dec 11, 2017.
Small Machining Vise designed around 20x80 Openbuilds Rail System