Post by Un Autre Monde on Jul 2, 2011 11:15:30 GMT -5
Weight: 27.1kg maximum (ARC Lightweight class)
Dimensions: 60 x 50 x 10 cm
Drive: 2 1kw motorbike starter motors run from a pair of 12v 4.5ah NiMh packs in parallel and 4QD speed controllers, driving two 120mm diameter 2014 aluminium wheels with polyurethane tyres and magnetic inserts for grip, through 4:1 angle grinder gearboxes and a final 2:1 timing belt reduction.
Speed: 14mph
Ground clearance: 12mm at the weapon end, down to 0 at the wedge end, underneath a 0 clearance sprung and magnetic (with neodymium inserts INSIDE the wedge this time ;P) wedge at the front, 0 clearance sprung and magnetic skirts at the sides and 0 clearance sprung spike modules at the front with magnetised tips.
Armour/chassis: 5mm titanium/10% vanadium alloy monocoque design - the base is removable for maintenance - double skinned in vital areas with internal bracing and shockproofing of all components where possible.
Weapons: The robot's passive weapons include its various skirts and wedges, a pair of hardened tool steel edged Hardox blades on the main wedge (facing upwards and sharpened and polished to cut into opposing robots' tyres), and hinged, dual/invertibly sprung spike modules, of which between two and eight can be fitted depending on setup, made of hardened tool steel with barbs to trap opposing robots.
The active weapons consist of an interchangable horizontally spinning weapons platform; the standard weapon fitted is a 6kg two-toothed 2014 aluminium spinning disc, 28cm in diameter with hardened tool steel chisel teeth shaped to tear wide gouges into opposing robots' armour, spun through redundant belt drive from a 40cc Stihl chainsaw engine to about 2500rpm. This setup is used with four spike modules, all on the same side as the disc.
The disc is interchangable with (and the size of the slot in the rear armour panel changes accordingly):
~ 25cm diameter 5mm thick reinforced angle grinding disc - this is normally used against opponents with very tough armour since cosmetic damage is likely to become important. This also uses four spike modules.
~ 34cm lawnmower blade - this is used where more reach is required and depicted in the picture; only two spike modules are fitted.
~ 20 inch horizontally mounted chainsaw - the guide bar has small tabs welded on to try and prevent the chain coming off too easily, but this is primarily used against joke entries unless there is a situation where a 55cm long extension of the main body about 50mm off the ground proves useful.
~ No active weaponry at all - in this setup the maximum of eight spike modules (four at the rear, two inside the front wedge itself and two on the angled front walls of the wheel pods) and the weapon fittings and petrol engine are removed from the robot, with additional 10mm UHMWPE plates fitted behind or on top of every body panel to provide additional armour with the weight freed up. This is the setup used against particularly nasty spinners.
Srimech: The robot is invertible and cannot come to rest in any orientation other than inverted or right way up (most of the weight is concentrated towards the boxier end of the robot, so it cannot get stranded on its wedge)
Joey's notes: This machine was designed for ARC: Armageddon during the first part of 2011. It did far better than I felt it would do, making the final against Kody's BlackRose, but due to extenuating circumstances* was denied a fair fight. It is one of the designs I'm more proud of though, especially the pictures which were drawn entirely by myself in Paint featuring textures from, among other places, Fate/stay night. ^^