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Optimize servo mount STL of Piper-Leader-Arm upper_arm for better cable routing - #40
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TataKKKL merged 2 commits intoOct 22, 2026
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I checked the updated upper_arm STL model, and the design looks good and works as described. The cable no longer has to wrap around the upper arm. The standard 20 cm servo cable now reaches between the two servos without an extension, and there's no longer a risk of the cable tangling. But the mounting holes still need updating. The holes on each side of the servo sit at different heights. Issue: #41 
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This PR Optimizes the servo mount structure of the
upper_arm3D printed part for Piper-Leader-Arm.The original orientation of the servo mount on
upper_armwas inconsistent with the servo mount of thelower_arm.This forced the servo bus cable to wrap around the upper arm for serial connection between the two servos, which made the 20cm servo bus insufficient in length and introduced risks of cable tangling during operation.
The optimized servo mount supports servo motors to be installed in arbitrary orientations.
With this improvement, the 20cm servo bus cable is long enough to connect the two servos on
upper_armandlower_arm, andexcludes the risk of cable tangling.
Fixes #39