This tool is designed to help in the changing of a Medtronic Guardian 3 or 4 sensor. This tool aids in the changing of the sensor one handed. The idea was originally from a man named Kirk and he deserves all the credit. There are two designs depending how you wear your sensor. I have printed this both laying down and upright. laying down gives a more textured feel due to the supports needed to print the curve. Feel free to make changes that you feel would make the tool better, as i designed this to help and not to profit from.

Recommend using supports, fill at 50% and printing out of PLA. I did print this out of PETG, but PLA is a much cleaner finish.