Set up my first 16h print a few hours ago. Checked it before going to bed and found the x-axis pulley had slipped.Put some locktite 242 removable thread locker on the set screw threads on both the x and y pulleys. That’ll show them.Thought I’d suggest it since I hadn’t seen it mentioned and couldn’t find it in search. This stuff keeps threads locked even under vibration and might be really useful for others.Not an affiliate link: http://ift.tt/2a0NfAF http://ift.tt/2a5RGgo