Rail Insert for screws & bolts

thingiverse

I NEVER have those little nut insert things handy (the ones that turn and lock something into place inside the printer rails)... I don't even know what they're CALLED, lol! So I made these rail inserts that sit flush with the rails. 1. Print these and slide them in 2. Line up whatever you're mounting with the holes over the insert(s) 3. Drill a little pilot hole for the M3 screw (or whatever screw) 4. Screw it on The screw or bolt goes right in, pulling the rail insert closer, achieving a tight fit! Loosen the screws up a little and the attachment should also slide smoothly! These have been a life saver for me, hope they help someone else out!