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  • Triceratop's Avatar
    Yesterday, 13:38
    Thanks again for the confirmation, starting to get the idea of the brushless. I am at Robodojo this Sunday so hopefully will catch up there if you are all about. Will also do some more digging whilst...
    8 replies | 335 view(s)
  • Shakey's Avatar
    18th November 2018, 16:33
    The throttle is not controlling the RPM though in brushed. It is controlling the effective voltage fed to the controller, capping the throttle means you won't feed it full voltage and hence will...
    8 replies | 335 view(s)
  • Triceratop's Avatar
    18th November 2018, 12:26
    Thanks Gents, Getting the general idea, looking at costs and what set up has been described above I get the feeling that brushed is a cheaper route but compromises the performance when considering...
    8 replies | 335 view(s)
  • Eventorizon's Avatar
    17th November 2018, 20:56
    The ESC and its firmware used with Brushless make so much of a difference, that its very hard to give standard rules or values to how much power you will get out of a system. The reason the ESC's are...
    8 replies | 335 view(s)
  • Triceratop's Avatar
    17th November 2018, 18:48
    Many thanks Alex, Interesting points, so basically brushed are more forgiving when put into stall mode? I've had a look at your set up on the web, seems quite a nice system there. Do you need a...
    8 replies | 335 view(s)
  • qbnut's Avatar
    17th November 2018, 17:44
    Post Extreme Robots Cheltenham The Cheltenham event was really good fun, and was a high for Broadax 2, followed by a low. So in melee 1 of the Saturday session, Broadax 2 was declared the...
    24 replies | 2954 view(s)
  • Shakey's Avatar
    17th November 2018, 14:06
    You don't stop wheel spin. Being able to spin your own wheels is a desirable property even with brushed. If you don't have the power to break traction you are far more prone to putting your motors...
    8 replies | 335 view(s)
  • Triceratop's Avatar
    17th November 2018, 12:34
    Hi Alex, Thanks for coming back with the explanation. By the way the drive looks really neat. With so much power on a FW how do you stop wheel spin? Thinking of control issues. I seem to remember...
    8 replies | 335 view(s)
  • Shakey's Avatar
    17th November 2018, 11:59
    The one thing missed by the guy saying to derate RPM by half is that, in FW's especially, vastly overspeccing a motors power is the norm. The common NTM Propdrive 50-60 or 50-50 used in FW drives...
    8 replies | 335 view(s)
  • phil33's Avatar
    16th November 2018, 16:36
    phil33 replied to a thread Motor mounts in Featherweights
    Hi, excellent news. I have sent a PM. Thanks
    2 replies | 136 view(s)
  • Roboteernat's Avatar
    16th November 2018, 16:31
    Roboteernat replied to a thread Motor mounts in Featherweights
    Hey Phil, I am manufacturing these, send me a message and can sort you out :) I have had more great feedback from roboteers at the Cheltenham ER event. I am also working on an upgrade for the...
    2 replies | 136 view(s)
  • phil33's Avatar
    16th November 2018, 14:17
    phil33 started a thread Motor mounts in Featherweights
    Hi, does anyone know where I can buy some motor mounts for the argos drill motors. They are the new style in which the gear box can come away easily. I have seen a couple of threads on them but...
    2 replies | 136 view(s)
  • Triceratop's Avatar
    16th November 2018, 09:56
    Hi all, Being old school I still use brushed motors for my FW but am looking at the possibility of going brushless. Brushless motors from what I have read across the web are a totally different...
    8 replies | 335 view(s)
  • typhoon_driver's Avatar
    16th November 2018, 09:19
    Just to add, all the go kart tyres I used in PP3D, crossfire and 008 were all free from a local karting track. They have to pay to dispose of them so me taking a bunch saved them money. I used an...
    4 replies | 180 view(s)
  • typhoon_driver's Avatar
    16th November 2018, 08:42
    The foam filled solid wheels don't have great grip. An easy way around this is to screw bike tread onto the outer rim of the tyre.
    4 replies | 180 view(s)
  • TeamKnightshade's Avatar
    15th November 2018, 18:02
    Thanks for the advice! I'll look into both options.
    4 replies | 180 view(s)
  • Sam_DRT's Avatar
    15th November 2018, 17:44
    Go kart wheels/tyres are pretty good, great traction. There's usually a good number going second hand on ebay. The actual wheel itself can crack though as they're pretty much all cast. People use...
    4 replies | 180 view(s)
  • Ocracoke's Avatar
    15th November 2018, 16:31
    Ocracoke replied to a thread Get Shrekt in Build Diaries
    I second the use of a drill press. I just have one for holding a standard corded drill in, cost about £15 but worth every penny.
    15 replies | 2240 view(s)
  • mrsam's Avatar
    15th November 2018, 16:06
    mrsam replied to a thread Get Shrekt in Build Diaries
    I use my drill press for most things nowadays, best tool I ever invested in. For stuff that I can’t put on the drill pres like the wedge mounts and base of the bulkheads etc I use a cordless drill.
    15 replies | 2240 view(s)
  • TeamKnightshade's Avatar
    15th November 2018, 15:00
    Hey everyone, I was wondering if anyone has advice on sources of good, reasonably priced wheels suitable for an invertable machine? Or making good, reliable ones. At least 10" Diameter. The best...
    4 replies | 180 view(s)
  • daveimi's Avatar
    15th November 2018, 12:47
    daveimi replied to a thread Get Shrekt in Build Diaries
    Do you drill everything with a cordless drill? It's always so accurate!!
    15 replies | 2240 view(s)
  • typhoon_driver's Avatar
    14th November 2018, 16:44
    Jeez that perm is a rare thing to see!
    1 replies | 251 view(s)
  • Wkdintent's Avatar
    14th November 2018, 10:43
    Wkdintent replied to a thread Go Ugly Early (FW) in Build Diaries
    Two weeks ago, I thought I only had a few minor things left to do, and I'd be good to go. Fast forward to the evening of the final Friday, and I'm still not quite there. Even though the...
    14 replies | 1798 view(s)
  • ACE Robotics's Avatar
    13th November 2018, 19:35
    We are having a bit of a clear out, the following items are up for sale : 1. LEM 200-127 Qty 1 - SOLD We don't know the history on the motor, it came with a job lot bought off of Katch FRA...
    1 replies | 251 view(s)
  • Ocracoke's Avatar
    13th November 2018, 11:40
    I must confess, I have never welded before but yes, it would be useful. I've ordered the 2 new drive motors to make a set of 4 but they are significantly bigger than the original 775s so the...
    130 replies | 16390 view(s)
  • Team Helix's Avatar
    13th November 2018, 07:22
    Good luck, definately time to make stronger side pannels. If I were you I would invest in a welder!!!
    130 replies | 16390 view(s)
  • Vulcan-UK's Avatar
    13th November 2018, 00:21
    Vulcan-UK replied to a thread New bot builder in Featherweights
    Hi, I can confirm that the Hobbywing esc mentioned only has one channel for the receiver. It might be better looking at the FeatherTwo esc for controlling two motors with one esc. Hope this...
    4 replies | 964 view(s)
  • Ocracoke's Avatar
    12th November 2018, 22:51
    Well it came back in one piece but a very unwell robot. First fight was between Kaizen, Backflip and Gaston and it did OK but ended up getting beached on Backflip's front flipper and we both ended...
    130 replies | 16390 view(s)
  • Garfie489's Avatar
    12th November 2018, 10:21
    Garfie489 replied to a thread New bot builder in Featherweights
    I only see one channel wire with which to control the ESC, so you will need two as far as i can tell. Ive never used these however so cant tell you much more about them
    4 replies | 964 view(s)
  • Eidg's Avatar
    12th November 2018, 08:05
    Thank you for your answer.
    24 replies | 2954 view(s)
  • Ocracoke's Avatar
    12th November 2018, 01:26
    Great to see you as well, glad I was able to help out with your robot during the Euro championship! Hopefully we'll have another match soon with a rebuilt Shu!.
    33 replies | 3203 view(s)
  • phil33's Avatar
    11th November 2018, 17:21
    phil33 replied to a thread New bot builder in Featherweights
    Thanks for the link and advice. I have had a look and it seems some people use these : ...
    4 replies | 964 view(s)
  • Garfie489's Avatar
    11th November 2018, 11:59
    Garfie489 replied to a thread New bot builder in Featherweights
    Theres a discussion in the link below on a Facebook group called "Unofficial robot wars" regarding this topic. https://www.facebook.com/groups/UnofficialRobotWars/permalink/928381847441581/ ...
    4 replies | 964 view(s)
  • scott's Avatar
    10th November 2018, 23:45
    My previous update was a few days before the Euros. In that time I had to put both wheels on, finish the weapon, and generally prepare for the competition. I had never driven it, so I tried it as...
    33 replies | 3203 view(s)
  • phil33's Avatar
    10th November 2018, 22:50
    phil33 started a thread New bot builder in Featherweights
    Hi all, I am new to bot building so I apologise in advance for any stupid questions I may ask in the near future. Me and my daughter have been going to the Maidstone extreme robots for a couple of...
    4 replies | 964 view(s)
  • Shakey's Avatar
    10th November 2018, 15:11
    Giving away 3 of the boats I acquired not too long ago. I need to make some space in my garage. Yellow, Green and Red need to go. IIRC one was almost ready to run, another needed new chains and...
    0 replies | 314 view(s)
  • qbnut's Avatar
    10th November 2018, 08:43
    It's not been announced yet, but probably August next year
    24 replies | 2954 view(s)
  • mrsam's Avatar
    10th November 2018, 08:05
    mrsam replied to a thread Get Shrekt in Build Diaries
    Haven’t updated this in a while, Get Shrekt has had a major overhaul the past couple of weeks. So Insomnia was a great event for Shrekt, it won all of its qualifiers by knockout and managed to get...
    15 replies | 2240 view(s)
  • Eidg's Avatar
    8th November 2018, 08:08
    Looks rock solid. When does the next uk kob event taking place?
    24 replies | 2954 view(s)
  • qbnut's Avatar
    7th November 2018, 19:26
    Preparing for Extreme Robots Cheltenham Many, many tweaks, changes and updates have been made to make it (hopefully) perform better than it did at KOB UK. The lids would hit the front...
    24 replies | 2954 view(s)
  • Ocracoke's Avatar
    7th November 2018, 18:00
    To answer your questions directly: 1. Ish. My axe motor does this on my middleweight I think but not by very much. I would prefer the pinion gear to be wholly on the axe motor itself since I don't...
    18 replies | 1413 view(s)
  • Dr. Crane's Avatar
    7th November 2018, 17:19
    I have a few questions and would be grateful for any help. 1. Is it okay for the pulleys to overhang the motor shafts as long as the grub screws make contact? 2. Are keyways absolutely essential...
    18 replies | 1413 view(s)
  • Al_'s Avatar
    7th November 2018, 15:49
    Not broken, just time for it to donate some parts to a new version over the winter.
    86 replies | 13757 view(s)
  • incredibleRAEFU's Avatar
    7th November 2018, 07:58
    Cheers
    4 replies | 757 view(s)
  • Roboteernat's Avatar
    6th November 2018, 20:31
    Oh no! Has it broken or was it disassembled for modification? I really do like your machine! So I have the bot a weigh on the work scales, and sadly the additional plates I’ve added have tipped it...
    86 replies | 13757 view(s)
  • Al_'s Avatar
    6th November 2018, 20:13
    I wouldn't worry, it's currently in a box, in bits, in my shed. :)
    86 replies | 13757 view(s)
  • Roboteernat's Avatar
    6th November 2018, 17:08
    So, it is with bit of excitement that i get to say Wanna Chopper is attending Cheltenham this weekend. Ive started the upgrades from Portsmouth already but failed to update this post! some of...
    86 replies | 13757 view(s)
  • PanoramicHarry's Avatar
    5th November 2018, 18:05
    I don't intend to release these for sale again at the moment. I do however have this one made to order on Etsy. https://www.etsy.com/uk/listing/627310454/antweight-wedge-flipper-combat-robot
    6 replies | 1160 view(s)
  • Ocracoke's Avatar
    5th November 2018, 17:01
    And here is the end result that is going to Cheltenham. Here's hoping it will come back in one piece. :P
    130 replies | 16390 view(s)
  • webed123's Avatar
    5th November 2018, 14:15
    webed123 replied to a thread Team OgreKill clear out in For Sale
    Is PayPal ok?
    4 replies | 458 view(s)
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