Step 3: Helps Strengthen Teeth
Line it up so that the circuit board will lay flat inside the tube once installed.
As you hold the USB to the threads, mark the threaded end with your Exacto-knife, front and back so you will know where to start cutting.
I used my Exacto-knife to do most of the material removal. I used my Dremel tool to remove a little of the VERY TOUGH inner plastic liner during fitting.
During the test fitting, I discovered that the USB would not stick out far enough when plugged into the computer.
I cut all but the bottom thread off of the threaded end of the tube. This allowed the USB connector to stick out further.
Take your time and trim away slowly on the inside of the threaded area to get a nice, tight fit.