Sony SM3 Case for freestyle libre

thingiverse

i fixed my sony smartwatch 3 above freestyle libre glucose sensor (for use as cgm). if you don't know what this does, you probably don't need it ;-) the case is compact and fits four neodymium magnets with a diameter of five millimeters and a height of three to five millimeters. they are snugly fitted, i used a pair of pliers to push them in. do not use heat to make them fit; it will destroy the magnetism! (yes, i know now). the watch sits comfortably in the case, but needs to be secured with some tape. take care not to cover the charger hole ;-) on my arm, i use "fixomull" tape from the pharmacy and five millimeter diameter neodymium magnets with a height of one millimeter. i place the tape on the watch with the non-stick side facing up and press an old freestyle libre sensor into the hole. this pulls the tape into position. then, i remove small sections of tape cover above the magnets on the watch case and allow the one millimeter magnets for the arm to snap onto the sticky part of the tape. all is now in order.... this design has several strengths: it's compact, easy to attach and detach, and inexpensive.