Tamiya 70211 Arm Crawler STEM Educational Kit  [70211]

Hands-On Build Guide for Tamiya 70211 Arm Crawler

If you want a practical way to learn mechanical basics, the Tamiya 70211 Arm Crawler Assembly Kit gives a clear, project-based introduction. The kit is part of Tamiya's STEM range and lets newcomers discover fundamentals of movement and construction through step-by-step assembly.

Track and Arm Mechanics

The arm crawler uses four rotating track units, two on the main body and one mounted on each arm, so it can move over varied surfaces. Each arm rotates independently to grip and pull the model over obstacles up to 45mm high, demonstrating simple force transfer and mechanical advantage.

Build Process Overview

All parts needed for the build are included, with a mix of snap-fit pieces and screw-fastened components to keep assembly straightforward. Basic wiring is required, but the motor comes with a pre-attached switch to simplify the work. A rear stay is supplied to help prevent tipping during climbs.

Upgrades and Add-Ons

You can expand the Arm Crawler's capabilities with optional items like the Twin-Motor Gearbox (item 70097) and the 2-Channel Remote Control Box (item 70102). These additions let you experiment with remote control and more complex drive setups.