Sorry for the lack of fine details, but:

Opened by Transfer

Team - Team Casimir Pulaski

Mass - About 100 kg, hopefully it will be on the right side of 100KG with the lack of a proper weapon and light armour.

Colour - Unpainted to save weight, so it€™s the colour of carbon fibre

Shape - Simple box with wedges on all 4 sides.

Wheels - It has 4 wheels, however only the rear 2 have power, the front 2 are like car steering where they can move though an arc of 40 degree (20 degree either way).

Motors - None whatsoever! How does it move might you ask? Read on

Drive -

This is going to be hard to try and explain, so I will do the front wheels first, the front turning wheels are powered by a small remote-controlled car-like system (the wheels are at the end of a sub-frame, where a linear actuator providing the turning force to turn the front 2 wheels. Imagine a car, with the linear actuator turning the steering wheel. The wheels turn 20 degree either way.

The rear two wheels are independent of each other, and this works in Lego and in theory should work full-scale, the wheels have a crankshaft coming back into the robot, the shafts connect to the same unit where they can turn independent of each other (I can do a lovely drawing if you would want me to), but basically there are 4 small hydraulic rams connected to the shafts, 2 on each side, connected so that when the rams go forward and backwards the wheel turns, based on an engine. The rams are timed so that when one pushes the second ram pulls back in a rotary action. The wheels are separated to aid turning (variable speed). In terms of horsepower, I have no idea, as I haven€™t put much research into the various hydraulic rams, as I am lazy and can€™t be bothered spending a few hours on researching for something which will probably get knocked out in round 1 to an overweight machine.

Turning Circle - If need be one rear wheel can be put into reverse and the other in forward and the robot can turn in a lovely arc, which isn€™t zero, but a metre or so.

Weapon - There isn€™t a weapon as such as I didn€™t want to push the robot over-weight due to the hydraulic drive, but as I didn€™t want to be defenceless, I put on a wedge on each side and a linear actuator powered lifting arm on top of the machine in order to self-right the beast if it gets flipper. It is only used to self-right.

Self-righter - That linear actuator powered lifting arm on the top does a good job at self-righting the beast

Chassis/Armour - The chassis is box-aircraft grade aluminium tubing, strengthen at key points with some steel, everything is nice and tight, apart from the rams which have to move up and down when the crank turns. The armour is bolted onto the chassis at numerous points and it is carbon-fibre, stronger than steel it is. I have tried to design the chassis to give 45:55 weight distributions.

Speed - Depends, about 16 mph if I have a good run.

Ground clearance - under the body it is 15mm, under the wedges it is zero.

Summary - It€™s just a test-bed for a motor-less machine, so chances it will exit at round 1 because it€™s different and because I have no idea on the numerous parts needed for the drive system, so I have cut-back on weaponry/armour to allow for the weight of the drive system, but mainly I wanted to try something original and different.