these corners adjust to your glass removing any play so you no longer need any binder clips. print a set of 4 of these. the screws dont need to be tight. they should not apply pressure to the glass or mic6. they should only take play or movement out of the bed. the hole is for an m3 screw size. i suggest the hole is cleaned up with a drill bit and tapped to the correct thread or atleast drilled out so the screw can just make its own threads into the plastic. i suggest printing these in abs or epc at 100% infill.
for the newer REV E printers use this version here.