How to...

Attach a wheel onto a featherweight

Fix a Lego (TM) wheel to a Sanyo (TM) motor

Use the Spektrum remote control system

Calculate rpm of a motor using an oscilloscope

Build a slide rail: how it works and what problem is resolves.

Build a voltage regulator. Electra uses one combined with a switch.

Understand differentials, and possibly use them to drive a robot.

Combine a switch and charge plug

Maximise the movement of the weapons servo.

Build a simple antweight in six steps

Build Dynamite (with costings)

Modify a Micro9 servo

Score a robot club meeting

Use the Axminster Micro Lathe

Plus...

List of receivers sorted by manufacturer

List of receivers sorted by weight

Electra's composition by price and weight