No particular problems, really, nice job Lewis.

Incidentally, I've been toying with the idea of redesigning Macduff the 5th. Ideas have come to me in the form of layers of carbon fibre armour, hydrostatic drive (Aaron, you there? would like to speak with you about this), complexly linked tracks, etc. But I'll post the stats here for all to see.



Macduff the 5th

Shape: Low box with a flat front, pointed sides (with removable skirts), and rounded rear.

Colour: Varying shades of blue, with silver-ish weapon attachments and skirt hinges, and the Scotland flag on top.

Weight: 100kg

Drive: 2 LEM130 Lynch motors run on 49.5 volts, geared 4.5:1 for better acceleration than previously.

Power: 5 packs each of 15 M1 A123 Lithium-Ion cells.

Motivation: 6WD; the wheel hubs are CNC aluminium and the tires are Storm 2-esque urethane rubber.

Speed: 15mph average; can get up to 30mph

Armour: 7.5mm Ti/V alloy, with extra 5mm Ti/V on the angled sides and rear. Side skirts are 5mm Grade 5 titanium. Weapon armour will be explained in said section.

Chassis: 5mm steel ladder

Ground Clearance: 0mm at the front with all set-ups except the drum, 15mm everywhere else.

Turning Circle: 0

Dimensions in CM (LxWxH): 100 x 80 x 15

Weaponry: Macduff has interchangeable weaponry. Set-ups are below:

SET-UP 1 - A pair of titanium lifting forks, diamond-tipped, powered by a lightweight linear actuator and can hoist 300kg. This makes Macduff's max weight about 97kg. Used against robots that attack with wedges, and bots that have skirts and low ground clearances. The main set-up.

SET-UP 2 - A 5mm Hardox wedge, powered by the same system. Makes Macduff's weight the full 100kg. Used against invertible FBSs.

SET-UP 3 - A angled, convex ramming bar made of 15mm Ti/V, built to withstand tough hits. Held in place with steel mounts, bulkheads, shock-padding, etc. Used against powerful, seemingly one-hit KO spinners. Removes the linear actuator but makes the full weight 100kg anyway.

SET-UP 4 - A small rear-hinged flipper made of 5mm Hardox, and powered by a 1.5kg CO2 tank and a 75mm x 50mm ram. Can flip over about 250kg and can right Macduff if needed, and has about 20 flips. Has a 5mm titanium 50cm long extension. Makes Macduff's weight about 99kg. Used if needed to tip over opponents quickly. A view of this set-up can be found here.

SET-UP 5 - A hardened steel spinning drum, ala Tornado, powered by a LEM130 Lynch motor at 36 volts. This removes the extra armouring on the sides and rear to accommodate the drum. The drum has two tungsten teeth to flip opponents quickly. The drum is 30cm wide, extrudes 15cm from the front, and is used against opponents with flipping arms, forks, and other attachments.

Srimech: Invertible with all set-ups, but SET-UP 4 can right Macduff.