Sturdy linkage for sg90 servo (type: door inward)
thingiverse
A sturdy linkage for sg90 servo motor I could not find the linkage system I wanted, so I made my own. It is created to open/close a small door. I use it for an automated chicken coop door. It prevents forced door movement in closed position. (The door in the pictures is a carton box proof of work) Requirements: - Sturdy - servo rotation force only used for movement. All other the forces absorbed by the linkage. - In extended position (door closed) the linkage prefents the movement to open the door - adjustable (just a little bit) - Easy build To build you need: - sg90 servo - small standard servo arm - three m3 bolds (20mm) and nuts - 2 small screws; one to connect the standard servo arm to the servo. one to connect the 'servoConnector' arm to the linkage (for both I used the standard ones that come with the servo to connect the standard servo arm) I hope this design is usefull to you. I would appreciate it if you let me know if you use it. ----------------------------- EDIT 2023-02-27: Slightly changed 'StudPassive' so all m3 bolds are the same length EDIT 2023-03-02: I realized I actually wanted the servo motor on the other side of the door.... therefore I created another sturdy linkage system: thing:5886883
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