Knee or mecanic elbow (Compact model)

thingiverse

The ultimate goal is to construct a robot that stands approximately 75cm tall. To initiate this project, I pinpointed two types of movement for all joints (excluding eyes and hands). This part of the project involves designing compact models of elbows and knees. The original model was inspired by https://www.thingiverse.com/thing:3091483; however, I need to optimize space on certain parts of the robot's body. The elongated rectangular components will serve as a framework and attachment points for the visual appearance of the robot. This frame will also guide wires so that they are barely visible. Printed parts: - 1x Compact-Rotate-A: Servo motor supports - 1x Compact-Rotate-B: Supports bearings to reduce energy loss through friction - 1x Compact-Rotate-C1: Supports bearings to minimize energy loss through friction - 1x Compact-Rotate-C2: Receives servo motor movement - 1x Compact-Rotate-D: Adaptable bone components Non-printed parts: - 1x SG90 servo motor - 1x Bearing 8x12x3.5 - 4x M2.5 8mm screws - 3x M2.5 nuts Steps to assemble the compact rotate system: 1 - Insert a small white piece provided with the servo motor into the "Compact-Rotate-C2" component. 2 - Insert nuts into designated spaces in "Compact-Rotate-C1" and "Compact-Rotate-C2". 3 - Slide "Compact-Rotate-C1" and "Compact-Rotate-C2" components into the slot of "Compact-Rotate-D" and secure them with screws. 4 - Install a bearing and one nut in the "Compact-Rotate-B" component. 5 - Join pieces "Compact-Rotate-A" and "Compact-Rotate-B" using screws. 6 - Insert the round end of "Compact-Rotate-C1" components into the bearing. 7 - Carefully insert the servo motor into the "Compact-Rotate-A" piece along with the little white piece. 8 - Secure the servo motor in the "Compact-Rotate-A" piece.