My Projects Portfolio

Slide Spot Robot

The Slide Spot Robot is an advanced automated welding system designed for precision spot welding applications. It features a robotic arm mounted on a linear slide, enabling it to reach multiple weld points across a wide work area—ideal for high-volume, repeatable tasks such as sheet metal panels and complex assemblies.


The system includes:
1. A spot welding gun
2. A sliding rail system for extended reach
3. Programmed weld paths for consistency and speed
4. Safety sensors and customizable programming options


These features ensure consistent weld quality, minimal variance, reduced operator intervention, and increased production efficiency.


My Role:
I was responsible for analyzing the wiring diagrams for two input cards, two output cards, and the welding control unit. I also reviewed the associated accessories, including gun holsters 1 and 2 and the welding tip cleaner. Based on this information, I reconstructed the electrical cabinet to restore the robot to full functionality. This cabinet housed the PLC, safety PLC, power supply, and terminal blocks, ensuring reliable operation and compliance with safety standards.

Technologies: Automation, Ladder Logic, PLC Programming, Electrical Wiring

CR‑10 3D Printer — Personal Upgrade Project

The CR‑10 is a widely used open-source 3D printer with a spacious build volume, perfect for experimental enhancements. As a personal project, I transformed my CR‑10 into a more capable and precise machine through a series of strategic hardware and firmware modifications.


The upgraded system includes:
1. Dual Z‑axis stepper motors — increased gantry stability and eliminated bed wobble caused by single-lead-screw designs
2. Upgraded mainboard — supports additional sensors and enhanced performance
3. CR‑Touch auto‑levelling sensor — ensures consistent and reliable first-layer adhesion
4. Custom firmware — flashed via Marlin 2.x, fully configured to support dual Z motors, auto‑leveling, and all new hardware


These enhancements deliver superior print quality, greater dimensional accuracy, reduced manual calibration, and a smoother user experience.


My Role:
This was entirely self-driven. I researched and selected compatible hardware, installed dual Z motors with reinforced wiring, integrated the CR‑Touch, and rebuilt the firmware configuration from scratch. I then calibrated every component, tuned motor currents, and validated the setup across multiple test prints—resulting in a robust, high‑precision printing platform.

Technologies: 3D Printer Hardware, Dual Z-Axis Mechanics, Firmware Customization(Marlin 2.x), Auto-Bed Leveling, Stepper Motor Control, Open-Source Electronics