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Graupner DSR581 - Robot Servo

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Notes

• The discontinued Graupner DSR581 is a specialized, non-proportional digital retract servo, designed for operating landing gear systems in high-quality RC aircraft. The "DSR" designation signifies its Digital Servo Retract function. Unlike a standard servo, it is designed for simple, end-to-end travel, ensuring that the landing gear is firmly locked in the up or down position. As a Graupner product, it is built to a high standard of quality, with a robust gear train and reliable electronics designed to handle the unique loads of a retract system. It is often sized in a mini-servo case, making it suitable for a wide range of .40 to 1.20 size aircraft.
• The purpose of the DSR581 is to provide a robust and foolproof solution for retractable gear. The digital controller allows for a more precise and consistent end-point, and the internal logic is designed to prevent the servo from drawing excessive current when it reaches the end of its travel. This makes it a much more reliable and easier-to-use solution than trying to adapt a standard proportional servo for retract duty. It is the servo of choice for scale modelers who want the ultimate in retract system reliability.
• While its non-proportional nature makes it unsuitable for most robotics tasks, the DSR581's unique function can be cleverly adapted. It is the perfect actuator for any simple, binary (open/closed, on/off) robotic mechanism that needs to be both strong and reliable. Examples include opening a heavy payload bay door, deploying a large sensor mast, or actuating a powerful locking clamp. Its purpose-built design makes it an incredibly robust solution for these kinds of two-position tasks.

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