Hand Controller for Micro Focuser (Customizable)
thingiverse
Thanks to "gzip" for making available the electrical scheme on "Instructables". I've utilized 2.2 Kohm resistors and TIP41 NPN power transistors, as specified here: http://www.electronicsteacher.com/robotics/robotics-tutorial/advanced-robotics/controlling-dc-motors.php Here is the link to "Instructables": https://www.instructables.com/id/H-Bridge-on-a-Breadboard/ As you can see from the images, I've chosen to reduce the 8-pin connector from the Focuser to a coaxial connector, thereby reducing the thickness of the controller. Please consult the Micro Focuser User Manual to identify which pins are used to power the motor. You can customize the telescope curvature by adjusting its diameter and attach the adapter to the controller! Demonstration: https://www.youtube.com/watch?v=ClEQA-6YlxE
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