MOC Mechanical Gear Pin Reciprocator STEM Building Block Kit (Parts Kit + Digital Manual)

Explore the principles of mechanical engineering and kinematic motion conversion with the MOC Mechanical Gear Pin Reciprocator STEM Building Block Kit. Designed as an interactive mechanical demonstrator, this compact desktop model demonstrates how continuous rotary gear transmission translates into precision oscillating and reciprocating motion through synchronized pin-and-gear interactions.

Important Notice

• Custom MOC Product: This product is a custom MOC (My Own Creation) building block set composed of high-grade loose technical bricks and precision mechanical components.
• Protective Packaging: To ensure safe international delivery and reduce packaging waste, all sets are shipped in reinforced protective packaging without a retail color box.
• Digital PDF Manual: Paper instructions are not included. Clear, step-by-step electronic PDF assembly manuals will be delivered via email upon delivery.
• Power Supply: Manual operation by default (requires no batteries). If motorized, buyer supplies required batteries.

Key Features

• Kinematic Motion Conversion: Translates smooth 360-degree rotational input from the rear drive crank into synchronized reciprocating linear travel across the front gear rack guide.
• Precision Gear Train & Pin Mechanism: Features an interlocking assembly of bevel and spur gears, oscillating linkage arms, and guide pins engineered for low friction and fluid cycling.
• Interactive STEM Learning: A tangible, hands-on physics demonstrator ideal for students, makers, mechanical enthusiasts, and STEM educators exploring gear ratio dynamics and linkage systems.
• High-Precision Technical Bricks: Precision-molded ABS beams, axles, and gears ensure durable engagement, minimal tolerance drift, and smooth cycling. 100% compatible with major technical building block systems.
• Compact Kinetic Desk Sculpture: An engaging mechanical automata desk toy offering satisfying, tactile operation and stress-relieving fidget interaction.

How It Works

1. Turn the rear drive axle/crank clockwise or counterclockwise.
2. The central drive gear meshes with the secondary gear reduction train, driving the vertical shaft and top eccentric cam.
3. The synchronized gear pins oscillate the lateral swing arms, driving the front toothed rack smoothly back and forth along its travel path.

Package Includes

• Complete Model-Specific MOC Technical Bricks, Gears & Pin Linkage Parts Kit
• Digital PDF Step-by-Step Building Instructions (Delivered electronically)

Specifications

• Material: Premium Eco-Friendly ABS Plastic
• Operation: Manual Hand Drive (No batteries required)
• Recommended Age: 8+ / Teens, Students & Engineering Hobbyists
• Compatibility: Fully compatible with major building block systems