150 gramme weight limit, must fit in a 4" cube before the fight.

We currently have three ant class robots: Pants, Cannon Fodder and Squashy. All have taken part in the Antweight World Series event which is the premiere event for this weightclass. Pants has also taken part in Robot Wars: Extreme 1 and 2 (BBC), and Robots' Revenge (Discovery Home and Leisure).

You can own your very own Pants or Cannon Fodder. provide full building service, plan sets and servo modification services. We can also do custom work on request. Go to the AntShop for more info.

If you are building an ant, tell us. And if you would like to be listed in the links section below but don't want to have a full website, send us the details (and if possible pictures) of you robot and we will host the site for you at no cost, right here on

Resources and Information

Antweight Robots
Antweight Robots Ant World Rankings Antweight World Series Antweight World Series Rules
Antweight Help
Technical FAQs Servo Mod HS80/81 Servo Mod SD150/200 Servo Comparison Table
Antweight Resources
RobotWars101 Discussion Forum The discussion forum for antweights.
RobotWars101 Discussion Forum - Events Events for antweights are discussed on the forum also.
RobotWars101 AntShop The shop that sells kits, servos, plans and videos.
Strikealite Batteries Source of Nimh and Li-Po batteries.
Technobots The primary source of robot parts in the UK.
Sussex Model Centre Excellent online shop for radio control.
Al's Models Another good online hobby shop.
Overlander Batteries Nicad and NiMh cells at all sizes.
Indoor Flyer Components Micro components and Li-ion batteries.
PocketBot Links to various robot resources including cybugs.
MIT Ants The place where it all started...
Artificial Stupidity Bots Reading University Cybernetics.
WES Technik Components Excellent source of micro components.