• 2026-05-08
• F.O. Borokinni, O.T. Oginni, J.S. Olamide, L.A. Oseni, K.D. Alonge
• Volume 2, Issue 1

Abstract

This paper presents a pedal-powered sheet metal cutting machine (PPSMCM) designed as a cost-effective, energy-efficient, and environmentally friendly solution for small-scale industrial applications and households, especially in regions with limited electricity access. The machine consists of a system frame, pedal mechanism, crank system, flywheel, connecting rod, cutting blade assembly, and support table, focusing on material selection for strength, durability, and availability The machine design prioritized cutting force, mechanical advantage, and structural integrity, while also emphasizing ease of fabrication. It utilized a mechanical transmission system driven by pedals to convert human effort into cutting force. The machine's performance was evaluated using materials including cast-iron pipes (CIP), Polyvinylchloride (PVC) pipe, and wooden blocks (WB), with an emphasis on rotational speed (RPM), cutting time, and depth of cut. Evaluation with various thicknesses of wood and mild steel sheets showed improved operational time and reduced fatigue compared to manual methods. Pedal-driven machines are favored in small-scale workshops due to their cost-effectiveness and ability to operate independently of electricity, despite the faster operation of electrically powered machines. This work highlights the viability of pedal-powered mechanisms for metal cutting in underdeveloped nations, promoting sustainable engineering and reducing reliance on electrical energy.