
using AI outline for Robotic Arm Build
Build the Thor Robotic Arm – Complete DIY Guide
🔧 Introduction
- Brief overview of robotic arms and their real-world applications.
- Why Thor? Mention its open-source nature, 6 DOF, and accessibility.
- What the reader/viewer will gain: hands-on experience with mechanics, electronics, and code.
🧩 Part 1: What You’ll Need
🖨️ 3D Printed Parts
- List of STL files (link to GitHub repo)
- Recommended filament (PLA or PETG)
- Print settings (infill %, supports, layer height)
⚙️ Hardware & Mechanical Components
- Bearings, pulleys, shafts
- Screws, bolts, nuts (M3, M4, etc.)
- Optional: Cable management, heat inserts
⚡ Electronics
- Arduino Mega + RAMPS 1.4
- Stepper motors (usually NEMA 17)
- A4988 or DRV8825 stepper drivers
- Power supply (12V or 24V, depending on motor specs)
- Endstops/sensors (if used)
- Jumper wires, connectors
💻 Software & Firmware
- Arduino IDE
- Marlin firmware (or Thor-customized firmware)
- Host software (Pronterface, Repetier Host, etc.)
🛠️ Part 2: 3D Printing & Preparation
- Tips for printing complex parts (orientations, supports)
- Cleaning and test-fitting parts
- Labeling or sorting parts before assembly
🔩 Part 3: Mechanical Assembly
- Step-by-step build with diagrams/photos
- Start with base → shoulder → elbow → wrist → end-effector
- Important calibration notes (alignment of gears, smooth motion)
- Use threadlocker if needed
🧠 Part 4: Electronics & Wiring
- Wiring diagram
- Connecting stepper motors to RAMPS
- Installing drivers (set current limits)
- Safety tips (avoid wiring with power on)
👨💻 Part 5: Firmware & Software
- Flashing firmware to Arduino
- Setting up motor directions, steps/mm
- Testing individual motors
- Basic motion control via G-code or scripts
🧪 Part 6: Testing & Calibration
- Homing and range of motion checks
- Adjusting stepper current, endstops (if used)
- Troubleshooting tips (jittery motors, misalignment, etc.)
🧠 Part 7: Advanced Ideas (Optional)
- Add gripper or suction cup end-effector
- Control via joystick or glove
- Add computer vision using Raspberry Pi + camera
- Wireless control (Bluetooth, Wi-Fi)
📦 Resources & Downloads
- GitHub repo: Thor by AngelLM
- STL files and BOM
- Firmware and Arduino config files
- Your wiring diagram or printable checklist (optional PDF for readers)
🎥 Optional: Video Companion
- You could walk through each section in a multi-part video series
- Highlight key tips, show motion demos, and feature viewer builds