Hand Controller for Micro Focuser (Customizable)

Thanks to "gzip" for publishing the electrical scheme on "Instructables". In my case, I have used 2.2 Kohm resistors and TIP41 NPN power transistors, as indicated here: http://www.electronicsteacher.com/robotics/robotics-tutorial/advanced-robotics/controlling-dc-motors.php
Here the link to "Instructables": https://www.instructables.com/id/H-Bridge-on-a-Breadboard/
As you can see on images, I've decided to reduce the 8-pin connector from the Focuser to a coaxial connector, to reduce the thickness of the controller. You need to consult the Micro Focuser User Manual to know which pins are used to power the motor.
You can customize the telescope curvature (changing the diameter) and attach the adapter to the controller!
Demonstration: https://www.youtube.com/watch?v=ClEQA-6YlxE