🧪 NEMJO Roughness Testing Machine

📌 Problem Statement

Surface finish is a critical factor in machining and fabrication, but small workshops and training institutions often lack an integrated system for both preparing and evaluating surface roughness.

• Technicians struggle to connect polishing methods with final surface quality.
• There’s no affordable setup to train or practice achieving specific finish standards.
• Quality checks rely on guesswork, not measurable parameters.

✅ NEMJO’s Engineering Solution

Objective: To develop a compact machine that combines surface grinding, polishing, and roughness assessment in a single, user-friendly system.

• 🛠 Integrated grinding and polishing wheels for sample preparation
• ⚙ Adjustable speed control to fine-tune surface smoothness
• 📏 Contact-based stylus/reference method to compare with known roughness standards
• 🔩 Compact, rugged, and ideal for frequent workshop or academic use
• 🧷 Optional sample-holding fixture for precision and safety

🎓 Educational & Practical Value

• Students learn to link surface preparation techniques with measured finish quality
• Trains users to assess finishes visually and by touch using reference tools
• Promotes workshop discipline in cleanliness, technique, and inspection standards
• Supports pre-inspection polishing in local manufacturing settings