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  • Wkdintent's Avatar
    Yesterday, 21:14
    Wkdintent replied to a thread Go Ugly Early (FW) in Build Diaries
    Thanks. My colour choice was driven by the team Polo shirts I hurriedly made for Cheltenham last year. The primer underneath is red oxide paint, which now I think about it, will make the bumps and...
    18 replies | 4449 view(s)
  • Ocracoke's Avatar
    Yesterday, 20:27
    Hahaaaa, no worries James. Azriel shouldn't be as prone to getting stuck as The Honey Badger was, but we will see.
    108 replies | 11437 view(s)
  • team death's Avatar
    Yesterday, 20:05
    Thank's James Yes it's just arrived and your'e right 3 pm and 10 am respectively.
    2 replies | 33 view(s)
  • McMullet's Avatar
    Yesterday, 19:58
    McMullet replied to a thread Go Ugly Early (FW) in Build Diaries
    Looks fab! Really liking the way the forks are assembled. Also I'm a sucker for a red and blue colour scheme so I heartily approve of your aesthetic choices. :)
    18 replies | 4449 view(s)
  • James Williams's Avatar
    Yesterday, 19:55
    There's no spinners at Grantham, but that floor flipper of theirs can mess you up as badly as anything. I'll try not to get us both caught on it this time Lucy. :roll:
    108 replies | 11437 view(s)
  • James Williams's Avatar
    Yesterday, 19:52
    Hi Colin I got my email from Alan about an hour ago & on that it mentioned getting there for 3pm on the Saturday & 10am on the Sunday. If you haven't got a copy yet you could ask Alan if he's got...
    2 replies | 33 view(s)
  • McMullet's Avatar
    Yesterday, 19:51
    Aha, so your 4s is 2x 2s, so you'll take out one 2s, replace it with a 3s and then that makes a 5s... It's almost too simple! :P Hope you can bring Azriel to Robodojo! Assuming the spinners don't...
    108 replies | 11437 view(s)
  • team death's Avatar
    Yesterday, 19:38
    Anyone know the arrival time and tech check time for Grantham? I registered a while ago but haven't heard anything, I know the show starts at 6 pm and finishes at ten which seems a little later...
    2 replies | 33 view(s)
  • Ocracoke's Avatar
    Yesterday, 18:37
    The 3S would replace one of the 2S batteries, my series adaptor only accepts two batteries. :p
    108 replies | 11437 view(s)
  • McMullet's Avatar
    Yesterday, 17:48
    Looking great! Well done on using most of the mass budget. :D I may be missing something there, but what's that going with to make 5s? Presumably not the 4s, because that would make 7s? :p
    108 replies | 11437 view(s)
  • Ocracoke's Avatar
    Yesterday, 17:11
    Ocracoke replied to a thread Go Ugly Early (FW) in Build Diaries
    Looks neat, looking forwards to fighting it in the arena. :D I pretty much did this with Azriel. Save for the body, all of the parts pretty much came out my last Middleweight.
    18 replies | 4449 view(s)
  • Wkdintent's Avatar
    Yesterday, 16:55
    Wkdintent replied to a thread Go Ugly Early (FW) in Build Diaries
    After a few months of doodling and silly ideas, I began work on version 1.1. The plan was to get her ready for RL Grantham, and just in the nick of time, here she is. Most of the hardware has...
    18 replies | 4449 view(s)
  • Ocracoke's Avatar
    Yesterday, 13:24
    Thanks for the advice Colin. With the gear ratios on Jibril going to 15.75:1, I suspect that'll help a lot anyway but the spring idea isn't a bad idea, I think the season 2 version of Bumblebot used...
    108 replies | 11437 view(s)
  • Tkd2612's Avatar
    Yesterday, 13:18
    I am making a load of link blocks for xt60s and small matek led strips. if anyone would be interested pm me
    0 replies | 57 view(s)
  • Flag Captured's Avatar
    18th June 2019, 22:27
    Both sold
    1 replies | 423 view(s)
  • Flag Captured's Avatar
    18th June 2019, 17:33
    Got a few things for sale I'm wanting to shift, PM me offers if prices aren't stated. May take a while to get back to people with me being busy most days now but will try to get back asap SOLD -...
    0 replies | 89 view(s)
  • Flag Captured's Avatar
    18th June 2019, 16:06
    Got a pair of Propdrive V2 5060 270KVs for sale, brand new and still in the box. Excellent spinner or drive motors for featherweights. £44 from HK, looking for the same but will do £80+P&P for...
    1 replies | 423 view(s)
  • team death's Avatar
    18th June 2019, 15:59
    I don't have a axe weapon but I do have some knowledge of cim motors and ratios. You would never be able to self right with such a ratio of 3:1, I would use a minimum of 8:1 and you will be...
    108 replies | 11437 view(s)
  • Ocracoke's Avatar
    18th June 2019, 12:59
    As a general inquiry, what ratio do folks run their axes at these days? For RL Grantham, Azriel will use the same 3:1 setup that Kaizen used last year with the CIM motor which in testing has been...
    108 replies | 11437 view(s)
  • McMullet's Avatar
    17th June 2019, 20:18
    Nice... Looking forward to seeing it finished!
    108 replies | 11437 view(s)
  • Ocracoke's Avatar
    17th June 2019, 20:03
    They are Gimson 13.7:1 motors (https://gimsonrobotics.co.uk/categories/dc-electric-motors/products/gr-ep-45-high-power-45mm-planetary-gearmotor). Coupled with 775 motors, they are a solid, if...
    108 replies | 11437 view(s)
  • McMullet's Avatar
    17th June 2019, 19:54
    Nice going! What's the drivetrain made up of, the motors look like something a bit nicer than drills... More importantly, is it also going to be pink? :D
    108 replies | 11437 view(s)
  • Ocracoke's Avatar
    17th June 2019, 19:46
    Azriel After finding a few moments to concentrate on this one, I've got it rolling. It isn't The Honey Badger quick but it is quite controllable as a result. Thanks to having the wiring loom, motors...
    108 replies | 11437 view(s)
  • McMullet's Avatar
    17th June 2019, 18:25
    Great stuff! Thanks for taking the time to write all this up. I'll have to try gluing some plans onto the raw material in future, hopefully that'll reduce levels of wonkiness a bit! We've been on...
    2 replies | 271 view(s)
  • Roboteernat's Avatar
    17th June 2019, 10:14
    Just wanted to say thank you to the Forum owners for increasing the number of allowed saved messages to 20,000, up from 50, an increase of 39900% Thank you :)
    0 replies | 80 view(s)
  • Shooty's Avatar
    16th June 2019, 23:55
    FOLLOW-UP: This video from Team Saint covers a few extra tips for HDPE cutting. the blade being used here will likely be too big for many cuts necessary, especially at lower weight classes, but the...
    2 replies | 271 view(s)
  • Shooty's Avatar
    16th June 2019, 23:46
    So I've been working fairly non-stop on beetleweights and featherweights for the past two years, and each of my builds have involved robots almost entirely constructed out of HDPE. I have a lot to...
    2 replies | 271 view(s)
  • team death's Avatar
    16th June 2019, 20:24
    If your wheels are plastic you will have to bolt the sprocket on and you will need to be very accurate because any up and down movement due to misalignment or side ways wobble will cause the...
    7 replies | 190 view(s)
  • para1yz3r's Avatar
    16th June 2019, 20:02
    Ok, think I got it mostly sorted now. just one last thing, how would you go about attaching the sprocket to the wheel and can anyone reccomend a good place to get appropriate sprockets?
    7 replies | 190 view(s)
  • team death's Avatar
    16th June 2019, 19:41
    Where possible you should use a single axle for strength and even on my feathers I don't go less a 25mm axle for the simple reason if you get flipped 6 feet in the air-your wheels and thus the...
    7 replies | 190 view(s)
  • para1yz3r's Avatar
    16th June 2019, 19:24
    but wouldnt the wheel rub against whatever part of the robot the bolt is going through and cause friction?
    7 replies | 190 view(s)
  • MattLampitt's Avatar
    16th June 2019, 18:04
    Because the bolt head or a nylock Nut is on the end.. I give it about 1mm
    7 replies | 190 view(s)
  • para1yz3r's Avatar
    16th June 2019, 17:32
    Thx for the answer, but how do you make sure the wheels dont move side to side on the axle?
    7 replies | 190 view(s)
  • MattLampitt's Avatar
    16th June 2019, 17:29
    I use m8 high tensile bolts as my fixed wheel axels for belt drive. It hasn’t let me down. Only time they bent was when it got a direct hit from a spinner. Still considering upping to m10 though.
    7 replies | 190 view(s)
  • HereticBlue's Avatar
    16th June 2019, 15:22
    Sorry for the late update, all of the above are now sold. We have some extra parts to add in here since they were originally used in Bonfire! If you are interested in these or have any questions,...
    3 replies | 647 view(s)
  • Ocracoke's Avatar
    16th June 2019, 15:15
    Jibril So the gearbox sides have been cut and the gears are on the shaft for Jibril but I've yet to make any head way in actually building it. Given the now tight timelines to RL Grantham, I may not...
    108 replies | 11437 view(s)
  • para1yz3r's Avatar
    16th June 2019, 13:11
    Hi, am in the process of laying out a CAD plan for a wip robot and was wondering what the best way to mount the axles for a chain drive system? thanks in advance, Ben
    7 replies | 190 view(s)
  • widow_twanky's Avatar
    16th June 2019, 09:03
    Traditionally I've always used something like Loctite 401 for magnets. I had read people were using epoxy for holding them in on brushless motors. Wondered if there was any reason for this such as...
    4 replies | 295 view(s)
  • maddox10's Avatar
    15th June 2019, 14:34
    The NTM 5060 is a very useable motor. But I tend to "ruggedize" them with glue for the magnets, and epoxy for the cable lead entrance.
    4 replies | 295 view(s)
  • shakesc's Avatar
    15th June 2019, 12:35
    I've used lots of the propdrives, happy with them
    4 replies | 295 view(s)
  • AdamST180's Avatar
    15th June 2019, 09:53
    Big help thanks, i did look but couldnt find it lol
    110 replies | 16601 view(s)
  • Shakey's Avatar
    14th June 2019, 13:22
    If it helps I dug up the F2 data sheet (Still on the store, just tucked away): https://nutsandbots.co.uk/ftds/
    110 replies | 16601 view(s)
  • AdamST180's Avatar
    14th June 2019, 09:18
    Ordered "Electronics for Dummies" so can get into all this again so know what im doing :lol:
    110 replies | 16601 view(s)
  • AdamST180's Avatar
    13th June 2019, 15:22
    Will test with the drill battery i think then as already got that and then once its running can at least then change to lipos, thanks for the help guys, I will get there eventually :lol:
    110 replies | 16601 view(s)
  • Ocracoke's Avatar
    13th June 2019, 13:32
    So the parts for the two stage reduction have arrived and I'll be cutting up the HDPE for both the gearbox and Azriel tonight. It did however strike me that I had forgotten the bearings! Bleh, they...
    108 replies | 11437 view(s)
  • McMullet's Avatar
    13th June 2019, 12:02
    I'd say the drill battery will be fine for testing, but ultimately I would say yeah, just get a lipo and put a fuse in. We use one of these in Ensign Wedgeley Crusher:...
    110 replies | 16601 view(s)
  • AdamST180's Avatar
    13th June 2019, 11:56
    So ignore the drill battery and just get a known lipo and fuse will be better? Dont want to risk frying the ESC as cost a lot lol
    110 replies | 16601 view(s)
  • McMullet's Avatar
    13th June 2019, 11:54
    I think the original Haynes manual just uses one of the batteries, which should be fine for testing that it works and a bit of driving around. The battery itself might have some overcurrent...
    110 replies | 16601 view(s)
  • Scarrosaki's Avatar
    13th June 2019, 11:41
    If you're using the Argos drill batteries and motors, would recommend just running a single battery to start with until you're happy with the wiring before thinking about adding a second battery in...
    110 replies | 16601 view(s)
  • Ocracoke's Avatar
    13th June 2019, 11:14
    You would need to wire it up in series (for increased voltage) or in parallel (for increased capacity) to get power to the ESC.
    110 replies | 16601 view(s)
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