Tamiya 75020 STEM Line Tracing Snail Kit  [75020]

Tamiya 75020 - LINE TRACING SNAIL
Price:
CAD$33.76
Brand:
Tamiya
Model:
75020
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Tamiya 75020 STEM Line Tracing Snail Kit Overview

The Tamiya 75020 Line Tracing Snail is a hands-on STEM model that introduces hobbyists to basic robotics and sensor feedback. Its clear high-impact polystyrene (HIPS) shell exposes the gearing and motor layout, helping builders see how parts interact. Driven by two Type 130 motors and guided by an infrared LED sensor, the snail follows a dark line on a light surface to demonstrate simple automation. Rubber tyres provide steady traction for indoor track tests, making this a practical project for beginners and hobby tinkerers.

  • Construction: High-impact polystyrene (HIPS) plastic
  • Drive: Two Type 130 motors
  • Line sensor: Infrared LED

How does the infrared sensor detect the line?

The infrared LED emits light and the sensor reads reflected intensity. Dark paint reflects less light so the circuit steers the motors to keep the snail over the marked path.

What power source does the model need?

This kit typically runs from small AA or AAA dry cell batteries or a compact NiMH pack depending on the motor mount. Check the kit instructions for the recommended battery type and voltage limits.

Can I tweak the snail for different surfaces?

Yes. Adjusting tyre pressure or swapping tyre compounds and fine tuning the sensor height can improve tracking on different indoor floors. Avoid rough outdoor surfaces unless you upgrade the chassis and motors.

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