Minimalist G4 play phone strain relief for FTC robots

This phone strain relief is designed for a "permanently" attached USB micro-B extension cable - for a Moto G4 play with a case - the kind that ships with the FIRST FTC kit with the Rev Robotics hub. It should be printed with slightly flexible (but not too flexible) material. PETG works great, and then stuck to the phone case with two-way tape or glue. After the cable is inserted into the phone the cable should be securely taped (with vinyl electrical tape) to the strain relief, as shown in the p