If you are looking to acquire or build an OpenServo v3 system, consider the following options: 1.
Since OpenServo is open-source hardware, the intended way to "buy" the latest versions often involves ordering the custom PCBs and sourcing the components yourself:
Because the original OpenServo project has seen less activity recently, many builders have moved to alternative "smart" or digital feedback servos that are more readily available:
: If your search for "v3" was specifically related to distance sensing rather than motor control, the Garmin LIDAR-Lite v3 is a widely available sensor in a similar price bracket. Identify and comment the code of OpenServo #9 - GitHub
: Maintains a page for reference but lists the product as Retired. 3. Modern Alternatives