Step 13: Attaching ears continued
The ultrasonic sensor somehow was the perfect fit to be shoved onto the locking mechanism for the flip up capability of the goggles. You have to pull the rubber goggle frame out of the plastic lens piece slightly from the top to make space then the sensor fits right in. The sensor does pop out sometimes, so a little glue could fix it for good. Unfortunately this method of attachment makes it impossible to flip the lenses up anymore.