Tamiya 70271 non-scale battery drivetrain STEM Robocraft assembly kit  [70271]

Tamiya 70271 Walking & Swimming Penguin - Robocraft STEM assembly kit

Tamiya 70271 Walking & Swimming Penguin is a STEM Robocraft assembly kit that presents a battery-powered walking and swimming mechanism within Tamiya's educational Robocraft series.

This kit is an educational Robocraft model intended for hands-on assembly rather than racing or Mini 4WD performance tuning. The design focuses on a simple mechanical drivetrain that switches between terrestrial leg-like motion and a basic swimming action, powered by a single AAA battery. Parts are molded for assembly and the kit is suitable for classroom demonstrations, hobbyist exploration of basic robotics mechanisms, or display in a collection of STEM models.

During build you will engage common modeling tasks: trimming runners, fitting gears and shafts, and routing the motor drive into the two-mode mechanism. The kit does not use a Mini 4WD chassis intended for track racing, so do not attempt competitive upgrades or racing modifications. Standard hobby tools and basic adhesives are typically sufficient for assembly; detailed steps for the walking and swimming transition are provided in the included instruction leaflet.

• Power source: single AAA battery drives the small motor and mechanism.
• Function: alternating walking and swimming motions via a simple drivetrain.
• Finish: parts come molded; painting and decal work are optional for display.
• Compatibility: designed as an educational Robocraft kit, not for Mini 4WD race conversions.

As a non-racing Robocraft kit, this assembly model provides a straightforward introduction to simple mechanical linkages and dual-mode motion; it is suitable for builders seeking an educational, display-oriented project.