And for those who were curious as to what Carcinus's extra weapon was going to be - had it not been overweight - here you go:



Inspired by Alex's (Bodge Job) axe attachment for Bruiser, I threw this together in a few hours over Tuesday afternoon/Wednesday morning. Powered by an 18V 550 motor through a standard 36:1 drill gearbox, then on to a 5:1 chain and sprocket reduction. Had a Bosch 400 sitting for years to put in an axe but never did due to the design complexity, then got a 300W scooter motor to try in the hope that it might be more straightforward. But when I saw how effective the one in Bruiser is with a GR02, I figured I may as well keep it simple. So the 300W motor might be twinned with another and fitted into Scar.



A picture of the mechanism. Quite pleased with the quality of the construction, considering a) I'd never worked with chains and sprockets before and b) I built it.
Have only tested it on a semi-charged 12 battery so not yet sure of how hard it hits. Won't be adding it on to Carcinus now the champs are over, but will build a robot around it to use at Scot-Bots/Robot Wars/Robots Live shows when I can't run Drumroll's weapon.