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Hurricane - Team Shred - Vic
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dyrodium
Experienced Roboteer


Joined: 24 Aug 2004
Posts: 6476
Location: Sydney


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LOL that thing never ceases to amaze me, nice workkkkk Cool
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Post Wed Mar 31, 2010 11:41 am 
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Jaemus
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Joined: 01 Apr 2009
Posts: 2674
Location: NSW


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yeah very nice man!

its actually fairly quiet sounding when its spinning hey

Post Wed Mar 31, 2010 4:15 pm 
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andrew



Joined: 16 Jun 2004
Posts: 3110
Location: Castle Hill, Sydney. N.S.W


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god i love that little robot

get it reliable and itll do well for itself

If you have spare weight maybe some ballast to stop or controll tipping over and look into a spare shell sooner or later or something for when u verse nasty spinners as i can see a good horizontal spinner caving the side of the shell in enough to jam it on frame.

Maybe if u do a new shell try smaller lighter teeth but more of them like what phrizbee and shrederator did.
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Post Wed Mar 31, 2010 4:23 pm 
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shreddy



Joined: 09 Jan 2009
Posts: 518
Location: Wantirna, Melbourne


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it's been a while since anything so heres a whole bunch of stuff

i took hurricane to school the other week for 'physics' and everyone loved it. we were gonna destroy a brick (in public) but my physics teacher wanted to keep his job Laughing all in all both teachers and students loved it and were amazed how someone of my age could design and build something as complex as a combat robot.

this puppy is on its way over here to bost the shell's speed from 1000rpm to >1600rpm, factoring in drag+resistance and all that jazz
http://hobbycity.com/hobbyking/store/uh_viewItem.asp?idProduct=4914&Product_Name=TURNIGY_50-65A_400kv_Outrunner_(Eq:_4030_AXi)


banebots? more like failbots! they didn't last long :3


finally properly made the led instead of just duct-tapung a few things together. it flashes diferent colourz! Very Happy


thank god for coke bottle heatshrink! they saved the batteries after they flew into the shell against vendetta when it felt like doing a few cartwheels.



over the past few weeks/months I have battle hardened and balanced the shell so it doesnt get mashed up like it did a robowars, black&white took a chunk outta one of the teeth! Shocked
i also found out why the shell was oddly off balance. even though the teeth were the same shape, one of them was 2.5mm thicker!
here they are at first


then we cake them in weld


gotta love tempered tool steel Twisted Evil


and then they had a little curve grinded in the front and then they were painted red.
i added the team shred logo and the sponsorship ad that i designed myself Smile


2mm ground clearance hells yeah Twisted Evil thats an ipod touch next to it for comparison




To make brick soup we require some nice bricks Confused


i would post the vid of the brick exploding however i may get shunned for my lack of personal safety Rolling Eyes

jus chillaxin waiting to destroy inferior botz Cool

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Post Fri May 28, 2010 6:40 pm 
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Fish_in_a_Barrel



Joined: 30 Sep 2006
Posts: 673
Location: Perth, Western Australia


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tasty, tasty bricks you have there Wink
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Post Fri May 28, 2010 7:01 pm 
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RogueTwoRobots



Joined: 12 Jan 2008
Posts: 135
Location: Irvine, Scotland


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Lack of personal safety? I filmed some testing of my drumbot in my tiny uni flat kitchen Laughing
Got textually reprimanded for it by one of the safety-conscious guys when I posted the link but I felt perfectly safe at the time hehe.
So go on, post the vid Smile
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Post Fri May 28, 2010 10:55 pm 
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shreddy



Joined: 09 Jan 2009
Posts: 518
Location: Wantirna, Melbourne


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Sad

http://www.youtube.com/watch?v=N2U4Yu5fe6Y

the aftermath: http://www.youtube.com/watch?v=RNLo7WMSwnU

:'(



























R.I.P sabretooth 2x25
i *think* it started with a combination of the hoseclamp being smashed into the battery and the wires on the bot-end of the removable link shorting out on the heatsink of the sabretooth. This caused a tremendous amount of heat which melted everything inside, some parts were even on fire. Now the thing is gutted and hurricane is needing a few hundred $$$ and 20+hrs of fitting and wiring as every wire is ruined and its a real pain coz i spent a long time minimizing it all for simplicity. The kforce, brushless and drills seem to be fine though.
Its a real shame though as i took it out to get a high quality recording of the sound it made as i got it up to 1600rpm, exaclty as i had predicted, and i rekon it was a contender for 'best sounding spinner'. I do have a test vid of it at this speed but the quality is crappy, i might upload it later though.
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Last edited by shreddy on Sat Jul 10, 2010 4:41 pm; edited 3 times in total

Post Thu Jul 08, 2010 9:01 pm 
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Nick
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Joined: 16 Jun 2004
Posts: 11802
Location: Sydney, NSW


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Ouch! That really sucks. hope you get it back together soon.

Post Thu Jul 08, 2010 9:10 pm 
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Jaemus
Experienced Roboteer


Joined: 01 Apr 2009
Posts: 2674
Location: NSW


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Holy sh*t!

You're making all the flamethrower bot builders envious of damage they couldnt do if they tried!

Post Thu Jul 08, 2010 9:15 pm 
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andrew



Joined: 16 Jun 2004
Posts: 3110
Location: Castle Hill, Sydney. N.S.W


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Itll buff out

dang dood

I reckon leave robots be for a bit, get hsc crap sorted and put your efforts into it then come end of year/start of next year get it going again for robowars in jan/feb

Very Happy
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Post Thu Jul 08, 2010 9:21 pm 
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Valen
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Joined: 07 Jul 2004
Posts: 4436
Location: Sydney


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perhaps think about silicon wire next time ;->
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Post Thu Jul 08, 2010 9:51 pm 
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Dylon



Joined: 09 Nov 2006
Posts: 631
Location: Newcastle, NSW


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xD ohgod... and that ladies and gentlemen is why you mount electronics in a box of some sort Razz
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Post Thu Jul 08, 2010 11:29 pm 
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Spockie-Tech
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Joined: 31 May 2004
Posts: 3160
Location: Melbourne, Australia


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eeouch.. that looks a bit toasty..

Pity you cant determine the sequence of events when its all inside the shell.. It would be interesting to know if it was a wiring fault (as in exposed or spin-damaged wires touching something), or whether it was a MosFet explosion that started the chain reaction.

MosFets (also know as Magical Smoke and Flame Emitting Transistors) tend to fail in short-circuited mode - fusing into a highly conductive lump, which then of course immediately overloads takes out the other Mosfets on the same side of the H-Bridge, which then gives your batteries a nice short circuit to dump hundreds of amps through and electronic chain-reaction melt down quickly follows..

The "Splat" effect on the bottom of the pully looks vaguely reminiscent of 'sploded Mosfet, but it *could* be melted plastic from the wires being flung out from "centrifugal force". odd how it only seems to be on one side of the pulley though.

The exact flavour-sequence of smoke emitted from the bot would probably tell an experienced smoke-makers nose whether it was mosfet followed by melting plastic wires, or the other way around Smile

A little tip for testing purposes is to make a removeable link with a high-current fuse(car stero gear) in place of the wire.. that way if anything goes wrong during testing, the fuse pops, and you know that something has used a heap of juice.

Once all the testing is over and you're heading to the arena for actual combat (where you would usually prefer the bot to give its every last it can amp rather than dying from a fuse blowing) then you replace the fusible link with an unfusible solid wire link.

Can save you some $$ from mistakes when youre just practising/tuning/testing.

Anyway, Nice Smoke job, looking at that, I'm surprised the alloy heatsink didnt melt ! Smile
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Post Thu Jul 08, 2010 11:49 pm 
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shreddy



Joined: 09 Jan 2009
Posts: 518
Location: Wantirna, Melbourne


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^^the terrible vid has now loaded
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Post Sat Jul 10, 2010 4:43 pm 
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RogueTwoRobots



Joined: 12 Jan 2008
Posts: 135
Location: Irvine, Scotland


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I lol'd at first Smile
Then the smoke really started pouring out Confused
Then I felt bad Sad
Real bad Crying or Very sad

That's extremely unfortunate. It's a shame it didn't happen at an event as it could've been extinguished and maybe saved your esc.
There's nothing like your bot catching fire and wasting expensive components to truly welcome you into the robot combat world.

Best of luck putting it together again; it's one of the robots on my 'cool' list of overseas competitors Smile
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Jamie
RogueTwo Robots
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With great power, comes great reliability

Post Sat Jul 10, 2010 7:38 pm 
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