Rubbermaid/Closetmaid Vertical Rail Three-Hook Mount

thingiverse

This is secure and strong mount for Closetmaid ShelfTrack and Rubbermaid FastTrack vertical rails, which attaches into three levels like the Rubbermaid FastTrack shelves. To install, angle the top in first, then bring the mount's inner face coincident with the rail's outer face, finally pressing down to lock into place. First installation might take some extra force, but I swear it works!The Holey version has 2x 1/8 inch diameter holes spaced 1-13/16 inches apart, which was the perfect interface for some device mount that I've since forgotten, but kept building into my device holders that used this mount. Maybe it can help you too!For FDM, I recommend printing on its side with supports , since printing on its back leaves layer lines perfectly poised to disastrously delaminate. PLA with 20% infill has worked for me.View on Printables here!