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  • Deathly Hallows's Avatar
    Today, 18:35
    I saw this on twitter and had to share. But as we had no appropriate thread I created one for the lighter side of roboteering Check out @BBCNewsround’s Tweet:...
    0 replies | 20 view(s)
  • Shooty's Avatar
    Today, 09:14
    So I've read through each post here, and it's made me realize that I should really learn how to program an ESC myself, another bit of electrical knowledge needed there but I suppose it was going to...
    35 replies | 6358 view(s)
  • Ocracoke's Avatar
    Today, 02:26
    Ocracoke replied to a thread Team Kaizen - Shu! in Build Diaries
    Haahaaha! I do have proper wheel hubs for the shaft but none of my M3 bolts appear to fit it so I think I might have a US measurement hub, which would appear to be ever so slightly narrower (4-40 by...
    27 replies | 2900 view(s)
  • Andy1979's Avatar
    Yesterday, 23:34
    I got a brand new brushed 30amp botbitz controller. Never been opened. Whats it worth lol
    35 replies | 6358 view(s)
  • shakesc's Avatar
    Yesterday, 21:40
    The best investment I made was an Atmel programming socket and USB adapter https://hobbyking.com/en_us/atmel-atmega-socket-firmware-flashing-tool.html?___store=en_us I have used this lots of...
    35 replies | 6358 view(s)
  • joey_picus's Avatar
    Yesterday, 21:17
    A: Unfortunately not - I've had this problem too, there just doesn't seem to be a market for small brushed single-channel controllers that do more than 12v :( The first one mentioned also doesn't...
    35 replies | 6358 view(s)
  • Maxamuslead's Avatar
    Yesterday, 16:48
    One option if your up for it is to by a TZ 85a and flashing it to turn it into a Brushed motor. Best thing about this method is that if you get comfortable doing it you can have a cheaper supply...
    35 replies | 6358 view(s)
  • PanoramicHarry's Avatar
    Yesterday, 16:42
    Little bump, still open for any offers.
    4 replies | 573 view(s)
  • Shooty's Avatar
    Yesterday, 16:04
    Alright, so at the moment, I'm currently trying to find a way to control the Linac, and finding a controller for the job is proving to be tricky. I was hoping to simply use another of the BotBitz 30A...
    35 replies | 6358 view(s)
  • Outlaw's Avatar
    Yesterday, 14:27
    Outlaw replied to a thread Team Kaizen - Shu! in Build Diaries
    I'd suggest doing the former. And that first test drive of Shu! in the kitchen made me laugh. Reminds me of my first test drive of Ratatoskr, same thing happened, haha!
    27 replies | 2900 view(s)
  • shakesc's Avatar
    Yesterday, 12:37
    true , we did change the firmware but as an extension of that there was lots of VESC tuning which is about the same level of black art as melty brain :) Carbide team did what I would of done in...
    13 replies | 417 view(s)
  • overkill's Avatar
    Yesterday, 07:02
    And if mods were not allowed, then Nuts would have been disqualified for having a meltybrain firmware upgrade :p. I'm with Mario & the others, its all allowed as long as the weight limit is not...
    13 replies | 417 view(s)
  • maddox10's Avatar
    Yesterday, 05:36
    If the machine stays in weight, anything is allowed as long the basics of the machine don't change. Because, if you go to far the other way, even a welding bead on the armor could be seen as a...
    13 replies | 417 view(s)
  • Ed Deegan's Avatar
    12th December 2017, 23:31
    Looks like I'm on my own here. Still seems wrong to me but I do see how the weight limit successfully stops most modifications getting out hand. I'll modify myself into the idea!
    13 replies | 417 view(s)
  • Ocracoke's Avatar
    12th December 2017, 23:24
    Ocracoke replied to a thread Team Kaizen - Shu! in Build Diaries
    Haha, sometimes they are magical to me as well :D I repositioned the motor further back onto the plate and it was a bit better, it managed to flip the cookie pack once but when the weight was...
    27 replies | 2900 view(s)
  • daveimi's Avatar
    12th December 2017, 21:20
    daveimi replied to a thread Team Kaizen - Shu! in Build Diaries
    Your robots are magical to me lol
    27 replies | 2900 view(s)
  • RogueTwoRobots's Avatar
    12th December 2017, 20:48
    Nothing wrong with tacking extra bits of armour on from scrap material, so long as the robot remains in weight. Rapid borrowed a sheet of HDPE from us to bolt onto the top of their robot for fighting...
    13 replies | 417 view(s)
  • Maxamuslead's Avatar
    12th December 2017, 20:17
    To be honest flails are a uncommon and Nuts 2 got lucky (not taking it away from them loved watching them beat carbide). Really hope Nuts 3 goes "pro" and becomes a really powerful flail spinner as...
    13 replies | 417 view(s)
  • Ed Deegan's Avatar
    12th December 2017, 19:55
    Good point Mark regarding the wheel guards on Concussion . But I would put bet that most bouts go in favour of the modified robot than the non modified. Interchangeable weapons to are fine...
    13 replies | 417 view(s)
  • Andy1979's Avatar
    12th December 2017, 17:44
    Its no different than robots ive seen with extra armour bolted on
    13 replies | 417 view(s)
  • Ocracoke's Avatar
    12th December 2017, 17:12
    Ocracoke replied to a thread Project Squirrel in Featherweights
    Ah, I see. I use a Dremel 3000 that came with the EZ Speedclic adaptor on it, only burnt through one metal cutting disc so far and a couple of grinding bands things. If the discs were brown, then...
    110 replies | 14975 view(s)
  • Outlaw's Avatar
    12th December 2017, 16:59
    Outlaw replied to a thread Project Squirrel in Featherweights
    I was using Workzone "cutting" discs... though I highly doubt they were, and I'm more than likely thinking they're sanding discs... well I'm a bit of an idiot. Either way, I still need better...
    110 replies | 14975 view(s)
  • Ocracoke's Avatar
    12th December 2017, 15:17
    Been focusing on Shu! over the last couple of weeks but found a bit of time this morning with the Dremel to clean up the side panels, which now look vaguely respectful again. Shrekt managed to put a...
    144 replies | 17342 view(s)
  • Ocracoke's Avatar
    12th December 2017, 15:08
    Ocracoke replied to a thread Project Squirrel in Featherweights
    What sort of discs are you using? I use the EZ speedclic discs and am able to cut through 10mm HDPE with a metal cutting disc with little issue.
    110 replies | 14975 view(s)
  • Outlaw's Avatar
    12th December 2017, 14:55
    Outlaw replied to a thread Project Squirrel in Featherweights
    Well that was ever so slightly short lived... The dremel discs that I was using just decided to up and shatter when I got to a point in the plastic... well, time to look for some new dremel...
    110 replies | 14975 view(s)
  • Ocracoke's Avatar
    12th December 2017, 12:53
    I did wonder about that. Either the addition (in the event that Carbide weighs exactly 110kg) meant they were forced to use the lighter bar or that 110kg figure is rounded up (note that in the...
    13 replies | 417 view(s)
  • Maxamuslead's Avatar
    12th December 2017, 12:50
    It is quoted as 110kg but IIRC they have 2 bars one of which is heavier and removable Plastic top Armour to shield against axes. Plus do they weigh each bot before each match or is just a one time...
    13 replies | 417 view(s)
  • Ocracoke's Avatar
    12th December 2017, 12:42
    Looking at the RW ruleset, the rules for interchangeability only refers really to weapons (there is a very vague statement about armour as well in rule 2.6... ...(aside from the fact that in...
    13 replies | 417 view(s)
  • Maxamuslead's Avatar
    12th December 2017, 10:39
    Depends of the what the rules say and the judges say and if the opponent rises a complaint for example Tornado VS Hypno Disc. In that case Team Hypnodisc said that the interchangeable weapon...
    13 replies | 417 view(s)
  • Shooty's Avatar
    12th December 2017, 09:42
    Modifying your robot during a competition has become one of the staples of modern robot combat, and disallowing the practice is next to impossible on account of being able to distinguish between a...
    13 replies | 417 view(s)
  • Ed Deegan's Avatar
    12th December 2017, 09:17
    In the last episode of BBC Robot Wars Nuts 2 knocked out Carbides spinner chain and won the fight. Then when they fought again later in the show. The carbide team was allowed to modify their robot...
    13 replies | 417 view(s)
  • Ocracoke's Avatar
    11th December 2017, 22:33
    Cool, I'll see about booking the cafe for early March time (3rd of March - 1st Saturday) for around 18:00ish time for a couple of hours. I'll update this thread if we are able to go ahead - should...
    3 replies | 123 view(s)
  • Ocracoke's Avatar
    11th December 2017, 21:53
    Ocracoke replied to a thread Team Kaizen - Shu! in Build Diaries
    Today was about fabricating the lifting arm, which marks another tick in the stuff that needs to be done list before Feburary. After a session with the Dremel and a sheet of PVC... It still...
    27 replies | 2900 view(s)
  • Outlaw's Avatar
    10th December 2017, 23:02
    Outlaw replied to a thread Project Squirrel in Featherweights
    So tomorrow... I crack the dremel out, and start work on cutting pieces out of the axe mechanism so not only would it be a little narrower, so that it'd fit in the middle, but also to try and get the...
    110 replies | 14975 view(s)
  • Mongo's Avatar
    10th December 2017, 12:11
    Thanks Rory, you have been very helpful to a newbie
    8 replies | 431 view(s)
  • R9000's Avatar
    10th December 2017, 06:37
    I think they were 10k, but it doesn't matter hugely as long as they're decently high. It's just a doubled-up version of the board in this: https://www.arduino.cc/en/Tutorial/Button
    8 replies | 431 view(s)
  • Mongo's Avatar
    10th December 2017, 00:42
    Thank you, what resistors did you use ?
    8 replies | 431 view(s)
  • R9000's Avatar
    9th December 2017, 21:27
    Sure, sorry it's a bit cryptic but it's really nothing too complicated. All that little home-made board is for, is to attach two push-to-break switches to the arduino (blue board). The resistors just...
    8 replies | 431 view(s)
  • Mongo's Avatar
    9th December 2017, 16:26
    Great video, I don't really understand the circuitry that you made though, if you are willing to explain a bit I would appreciate it.
    8 replies | 431 view(s)
  • callumhoy's Avatar
    9th December 2017, 15:19
    Completely ignore my diagram from before, I'd have to put the CAM above the axe arm. The CAM would push the bar down, raising the axe up and stretching the spring, then the spring being used to pull...
    31 replies | 5873 view(s)
  • callumhoy's Avatar
    9th December 2017, 15:12
    The drive right now is pretty much the same as it before I bought it. 2 scooter motors powering, going through some custom gearing to drive the wheels. I have simplified all the wiring, and I'm...
    31 replies | 5873 view(s)
  • mattsdragons's Avatar
    9th December 2017, 13:31
    You would be better off with a scooter motor powered system I think. I'm all for different ideas but even using twin motors and a bloody huge solenoid would be easier! But... if you want to go...
    31 replies | 5873 view(s)
  • Theo's Avatar
    9th December 2017, 12:22
    Out of interest, what have you sorted with the drive?
    31 replies | 5873 view(s)
  • Redirect Left's Avatar
    9th December 2017, 07:02
    Redirect Left replied to a thread Newcastle/Durham in Socials
    Yeah. the UK is shaped awkwardly, not to mention involves several islands. Hard to do a meet in a place suitable for all. I still think that trying to organise vaguely localised meets would be...
    6 replies | 348 view(s)
  • PrimevalMamba's Avatar
    9th December 2017, 00:34
    PM'ed you an offer ^^
    4 replies | 573 view(s)
  • callumhoy's Avatar
    8th December 2017, 23:41
    I have little faith in the setup used in that video, especially the spring being bent. That seems likely to be very unsafe. The spring would definitely need to be contained in some kind of safety...
    31 replies | 5873 view(s)
  • Ocracoke's Avatar
    8th December 2017, 23:14
    Hmm... certainly looks powerful but I would not want to be around it if that spring decides to break (might be worth fitting a blanking plate over where the spring is exposed. Having watched...
    31 replies | 5873 view(s)
  • callumhoy's Avatar
    8th December 2017, 23:09
    The Whitworth Quick Return does look far less likely to break down, although it does look far less powerful, because there's no actual force behind the downward swing The spring appears to provide...
    31 replies | 5873 view(s)
  • Ocracoke's Avatar
    8th December 2017, 22:45
    I possibly would not bother with a spring... when I was prototyping a axe mechanism, I simply used a bit of metal with a slot on it, a motor and a hub with one screw in it and I'd imagine it is the...
    31 replies | 5873 view(s)
  • callumhoy's Avatar
    8th December 2017, 22:30
    I'm not too worried about it being weaker than a pneumatic axe. I'm probably putting a plastic (or inflatable) police truncheon on the end for the looks more than to be effective with a small...
    31 replies | 5873 view(s)
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