Modular 3D-Printable Humanoid Robot Frame
Budget / Salary₹12,500–37,500
TypeFreelance project
LocationRemote
Posted55 minutes ago
Design a modular, 3D-printable humanoid robot frame (torso up). It must be easy to assemble, service, and wire. Deliverables must be .STEP (for editing) and .STL (optimized for FDM printing).
Electronics to Accommodate:
7x MG996R Servos (Standard 40x20x36.5mm size).
1x Raspberry Pi 5 (with room for active cooler).
1x 7-inch HDMI Display (with driver board).
1x 2-inch speaker and 1x USB microphone.
1x NeoPixel LED Ring.
1x Servo Power Supply (Dimensions: approx. 100x60x30mm).
Mechanical Requirements:
Head (2 DOF): Pan/Tilt using 2 MG996Rs. Must include a snap-fit or screw-in bezel for the 7" display. Include mounting points for the speaker/mic.
Torso (2 DOF): A "waist" mechanism using 2 MG996Rs to provide twist and lean.
Arms (2 DOF each): Shoulder and Elbow joints.
Servo Mounts: Do not print flexible joints. Design rigid, screw-together servo housing blocks that clamp around the MG996Rs. Use standard 25T servo horns and bearings for pivots.
Cable Routing: Include 6mm to 10mm internal channels for servo cables to pass from the arms/head down to the lower torso.
Assembly: The torso must be split into a front and back half (clamshell) so the electronics can be installed easily.
Design Rules for 3D Printing:
Minimum wall thickness: 2.5mm.
Parts must print without supports where possible, or with supports that are easy to remove.
Use heat-set threaded inserts (M2 and M3) for all screw connections. No self-tapping screws into plastic.
Allow 0.2mm clearance for all moving parts.
Electronics to Accommodate:
7x MG996R Servos (Standard 40x20x36.5mm size).
1x Raspberry Pi 5 (with room for active cooler).
1x 7-inch HDMI Display (with driver board).
1x 2-inch speaker and 1x USB microphone.
1x NeoPixel LED Ring.
1x Servo Power Supply (Dimensions: approx. 100x60x30mm).
Mechanical Requirements:
Head (2 DOF): Pan/Tilt using 2 MG996Rs. Must include a snap-fit or screw-in bezel for the 7" display. Include mounting points for the speaker/mic.
Torso (2 DOF): A "waist" mechanism using 2 MG996Rs to provide twist and lean.
Arms (2 DOF each): Shoulder and Elbow joints.
Servo Mounts: Do not print flexible joints. Design rigid, screw-together servo housing blocks that clamp around the MG996Rs. Use standard 25T servo horns and bearings for pivots.
Cable Routing: Include 6mm to 10mm internal channels for servo cables to pass from the arms/head down to the lower torso.
Assembly: The torso must be split into a front and back half (clamshell) so the electronics can be installed easily.
Design Rules for 3D Printing:
Minimum wall thickness: 2.5mm.
Parts must print without supports where possible, or with supports that are easy to remove.
Use heat-set threaded inserts (M2 and M3) for all screw connections. No self-tapping screws into plastic.
Allow 0.2mm clearance for all moving parts.
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