Maker Draw GT1 Kit (Unassembled) – DIY Plotter/CNC Drawing Robot

The Maker Draw GT1 Kit is an advanced yet beginner-friendly DIY plotter and drawing robot designed for makers, educators, and hobbyists. This unassembled version of the GT1 gives you a hands-on building experience, allowing you to understand every component of the machine. Once assembled, the GT1 can draw, sketch, or write on paper with high precision—perfect for art, education, or CNC experimentation.

Built around the CoreXY mechanism, the GT1 offers fast, accurate, and smooth motion using lightweight components and belt-driven movement. Most of its structure is made from durable 3D printed parts, making it lightweight, customizable, and easy to repair or modify.

Included Parts (Unassembled Kit)

🧩 3D Printed Parts:

• X-axis Carriage – Holds the pen/lifting mechanism and moves along the X direction.

• Y-axis Gantry Mounts – Connects the frame to the CoreXY belt system.

• Motor Mounts (Left & Right) – Secure stepper motors to the frame.

• Idler Pulley Holders – Guide the GT2 belts and maintain tension.

• Pen Lift Arm – Holds servo and provides Z-axis movement.

• Pen Holder – Compatible with pens, pencils, markers, or custom tools.

• Belt Clamps – Secure the GT2 belt ends in place.

• Corner Brackets – Reinforce frame corners and keep the machine square.

• Feet / Base Mounts – Elevate the frame and provide stability.

🔩 Mechanical Parts:

• Aluminum Extrusions (2040/2020 profiles) – Main frame structure.

• GT2 Timing Belts – Precision belts for CoreXY motion.

• GT2 Pulleys & Idlers – Smooth and precise motion transfer.

• Linear Rods / Rails – Ensure smooth linear movement.

• LM8UU Bearings – For stable and low-friction sliding.

• M3/M5 Screws, Nuts, Washers – Complete fastener set.

• Zip Ties – For wire and belt management.

⚙️ Electronics:

• NEMA17 Stepper Motors (x2) – For X and Y movement.

• Micro Servo Motor (SG90) – For Z-axis pen up/down motion.

• Arduino UNO / Nano (Optional) – Microcontroller.

• CNC Shield or Custom Driver Board – Stepper motor driver.

• A4988 / TMC2209 Stepper Drivers (x2) – Smooth, precise control.

• USB Cable – For programming and communication.

• Wiring Set – Pre-cut wires and connectors.

🔧 Tools Required (Not Included):

• Screwdriver set

• Allen keys

• Pliers/cutters

• Soldering iron (optional for some wire connections)

🖨️ 3D Printing Info:

• STL files for 3D printed parts are included.

• Recommended material: PLA or PETG.

• 0.2 mm layer height, 20–40% infill recommended.

• Print bed size required: 220x220 mm minimum.

📝 Use Cases:

• Pen plotter for art and design.

• Handwriting robot (g-code or SVG to pen).

• CNC education and motion study.

• Light laser engraving (with mods)