Robotic Arm Elbow Joint – Onshape Design

This repository contains the 3D CAD design for a robotic arm elbow joint, modeled using Onshape. The design is intended for use in robotic systems and can be 3D printed or further modified in CAD software.

Overview

• Designed in: Onshape
• Purpose: Elbow joint component for a modular robotic arm
• Features:
  • Four mounting holes on the base for secure attachment
  • Two side holes to allow shaft or rotational pin insertion
  • Rounded contours to support smooth rotation and aesthetics
  • 3D printable and SolidWorks-compatible formats included

Files

File Name	Type	Description
elbow_joint.stl	STL	Ready for 3D printing
elbow_joint.sldprt	SolidWorks Part	Editable CAD file for modification
elbow_joint_top_view.png	Image	Top view of the elbow joint
elbow_joint_side_view.png	Image	Side view showing pin hole
elbow_joint_front_view.png	Image	Front view showing full thickness and hole arrangement

Usage

3D Printing

• Open the elbow_joint.stl file in any slicing software (e.g., Cura, PrusaSlicer)
• Recommended print orientation: flat on the base with support as needed
• Material: PLA, PETG, or ABS depending on mechanical strength requirements

CAD Modification

• Open elbow_joint.sldprt in SolidWorks (or import into Fusion 360 via compatible format)
• Use this file for:
  • Parametric edits
  • Customization of dimensions
  • Assembly with other robotic components

Author

Eng. Ruba
Designed as part of a robotics mechanical design training module in 2025 using Onshape CAD tools.