RogueTwo Robots

[Mouldy]

Im not sure having a trophy with "beat off champion" on it is the kinda thing anyone would put on there mantle piece...

[overkill]

We've had Boner announced over the PA for a few years, I'm sure our audiences are somewhat de-sensitised

Well that's a relief, I was afraid my plans for a new flipper design named Giant Trouser Snake would cause offence.

[RogueTwoRobots]

Update

Trying to keep a bit of momentum going with regards to the robots. Normally take a break after weeks of building and the high of an event (and the subsequent low of an event finishing) but having a robot that still works and just needs a few small mods gives you the necessary boost to get it all back up to full health quickly.

So, a bit of analysis of the damage. Most of the damage was done to the armour (doing its job then), with a little to the front aluminium and base. The welds broke on one side of the armour, but considering I was welding them with a dodgy welding mask and squinting through two pairs of sunglasses, I wasn't surprised that they suffered. Easy enough to fix:





The vapourised tooth of the drum. This was the one that suffered most in a contra-rotating impact between Drumroll and Galactus, but I think he came off worse



The teeth this year seemed to wear a lot more than the old ring drum, despite being a harder material. After having watched back some footage and looking at the old drum again, part of it is due to the force of the impacts nowadays and part of it is due to the shape of the teeth. The teeth that suffered the worst were the two that were involved in the biggest impacts (the other two are alright). The old drum teeth were also shaped in such a way that they had more material below the radius of the tooth, meaning that when they chipped or blunted, there was more material underneath the leading edge to cope with the impact and therefore more material remaining when I re-ground them. But with the current teeth, the material curves away from the leading edge meaning that when they blunt and suffer impacts, there's less remaining material as it gets less and less as it approaches the ring section and the edge taking the impact is more prone to compressing. Reading that back I have no idea if it makes sense, but I know what I mean :P
I've managed to ground all the teeth into rough tooth shapes again, even the one pictured to a reasonable degree so there's still a bit of life in the drum yet.

Or is there.....





The remains of one of the bearings in the drum. I already knew that it was partially knackered as I had to pick out five rollers at the event due to damage, but it's clearly got worse. It most likely explains the fuse blowing in the drum-off and Gladiator event; took a few big hits in the drum-off which probably exacerbated the damage, leading to a higher resistance in the weapon setup, resulting in the brushless motor pulling a higher continuous current and causing the fuse to blow. Didn't spot it between the drum-off and the Gladiator, so the problem was bound to re-occur.

I'll need to see if I can get the roller cage, or the complete bearing, out and replace it or whether this'll become an expensive paperweight. Either way I've got plans in mind with regards to a new drum that would deal better with blunting teeth.

The damage caused by Little Nipper. Missed all the components but varied the shape of the baseplate a bit:





Easy enough to bend back with a hammer, but might look into ti as an alternative.
The maintenance required for Banebots wheels is getting a bit silly as well (WD-40 or white spirit with a dishwashing sponge in between fights) and combined with the lack of replacement Banebots nowadays, I wanted to go back to bike tyre. Thought about getting aluminium plates cut with a 3/4" hex in it to go over the motor hub that HDPE wheels could bolt onto, to which I could then screw some bike tyre to. Then had the brainwave of just using the existing Banebots wheels, so had to strip the tyre material off of those:



And then screw some bike tyre tread onto them. Job done, simples:



Can't decide if I'm 100% happy with them yet though as it increases the ground clearance a bit more (the treads are thicker than the Banebots material was), might still go for HDPE/ali versions if it means I can get them closer to the 3-7/8" Banebots size. But either way, they'll be a lot less maintenance intensive.

[RogueTwoRobots]

Also picked up the claw from Reaver and thought, 'I wonder how strong the welds are on this' and tried to pull it apart. It broke easily :P
But as I don't see too much future in the current Reaver (bang on the weight limit, no srimech etc) I figured that I may as well go from one feeble crusher back to another. May be time to give this little critter a rebuild and run-out again:

[harry hills]

Post champs Jamie = win.

Also I see you random hardox disc in the background, you sneaky sausage.

I have some 4" hdpe round sitting doing nothing so if you want stuff from that give us a shout

[RogueTwoRobots]

Haha, there are a lot of things in the background that I have plans for which will probably never materialise. I've had that disc for a while though, contemplated fitting it into Onyx's chassis as it was a perfect fit, but there are too many verticals now so I might go for something different with it. If I ever get round to it....

And will do, thanks. Would probably need it turned down to, like, 85mm but I know someone with a lathe

[Flag Captured]

Did you ever do anything with the overhead saw attachment on Carcinus? Because if that's still about you should definitely put that on it. Channel its inner Dead Metal haha!

I do like the look of the bike tread on Drumroll as well, looks pretty good. Imagine it would be pretty grippy too from the looks of it...

[RogueTwoRobots]

Yeah still got the saw attachment, it's actually just hiding behind one of Scar's drive motors in the Carcinus pic. Never got the business end of it sorted out so it'd need a bit of work, but I'll draw some inspiration from Gloomy and try to get it working

Used the same bike tyre on Banebots hubs on Reaver at the champs and it seemed to work fine. No maintenance required, although DB10 did dissect one of them quite nicely.

[Mouldy]

Damn you for getting that posted before me! Im getting ellis to make some tormenta 3 style wheels for 722 for next year for weight and traction reasons lol... seems you really do benifit from an aggressive tread pattern on the metal floor

[Shakey]

Chunky tread like that seems to work nicely and is pretty robust. Only problems I've had have been either not using enough screws to hold it in or a spinner damaging the tread. I've had the same tread on all my robots for years!

[Gaseraki]

Is that true Dave? Was going to grab some Colson wheels for next year instead of my custom made bike tire ones. I would of figured that would be better grip on metal rather than tread?
I thought tread would be better on mdf flooring to disperse the dust in the tread.

[shakesc]

Have Banebots wheels on Spur with bike tread screwed on
Hard wearing and good grip - remember choosing it in Halfords and the assistant asking if he could help.... it was oh so tempting

[RogueTwoRobots]

Ha! I knew if I got my wheels sorted early then for once I couldn't be accused of copying you Dave (if you want to ask Ellis to make a couple extra though, that'd be great )

I've used bike tyre on virtually every robot I've ever made, but started using less and less as Banebots became available through Technobots and Robo Challenge Blue wheels faded out. But it's just so easy and effective, kinda happy to be going back to it. Never used enough screws in the past but sorted that this time round. Although if screwing into Banebots hubs I think there can be such a thing as too many, as they may lead to weakening the hub (the wheel on Reaver that DB10 hit may not have failed as much if I hadn't peppered it with screws)

[shakesc]

Colsons are popular but look blooming heavy
Still hunting for an easy supply of wheels. I could make my own but consider them a commodity so dont want to be spending alot of time turning them out (literally)
I bought some toolstation castors - look promising and really cheap. Central hub though is a bit thin for my liking

[Ellis]

http://imgur.com/a/H0pE3

I still need to see if my tiny lathe can handle the radius tool I made in nylon. I haven't yet, for the same reason the robot stuff is exactly where I plonked it when I stumbled in the door after the champs... I will get round to it soon.