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dyrodium
Experienced Roboteer
Joined: 24 Aug 2004
Posts: 6476
Location: Sydney
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Well, i found that micro-switching are an easy, and fairy reliable way of getting your bot moving for less $$$. Also, if I WAS drawn against Jolt (which i will be), i have no problem getting a whole side ripped off (gives me something to do!), however the last thing i want is to loose my reciever, which cost a fair bit. What if found in starting this hobby (which was fairly recently), is that, after the remote ($200), you can build a bot for next to nothing. _________________ ( •_•)
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YEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAH
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Fri Mar 25, 2005 5:41 pm |
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DavidM
Joined: 07 Jul 2004
Posts: 41
Location: Victoria, Australia, Earth, Milky Way Galaxy
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I can understand peoples caution and I would normally agree, but hey! Why not give it a go! What is there to lose! Nothing! Keep the rules vague and simple, human nature says someone is going is going to try a swifty whatever rules you put up, if so mod the rules the next round, K.I.S.S just get to the bugger off the ground, its not like there's big money at stake. If the response is luke warm after a good trial period - torch the idea, but until then launch all tubes! _________________ "Limitation shows the Master."
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Fri Mar 25, 2005 9:29 pm |
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Spockie-Tech
Site Admin
Joined: 31 May 2004
Posts: 3160
Location: Melbourne, Australia
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Re: Bot Bash 13.6kg Entry level Competition
Understand first Tim, that this is intended to be a *beginners* class.
Somewhere where people who are still learning how to solder, wire up relays and stop their wheels falling off can play without being chewed to bits in their first fight by experienced veteran builders.. Most of the rules are with that in mind..
>> All bots must sit flat inside a 1m long x .7m wide x .7m high box
> I thought we could biud em as big as we want as long as it fits threw the arena door?
I dont know why This is important, no doubt Rick has a reason.
>> Confirmed battery drill & type motors and gearboxes only
>> in the range of 7.2 to 14.4v . Exemption could be granted
>> for other 12v motors eg: car window winders / wipers
The emphasis here is on *cheap*. If you want to use custom wound brushless motors with Neodynium magnets, you go into the "pro" class. The allowed motors are known to be under $20 each..
>> why only up to 14.4v drills? a few peeps use 18v or more drills
>> or eaven 9.6v or 12v running at twice the voltage?
Yes, but not with Relay/Servo controllers. Most of these bots will likely not be running an ESC, and keeping a motor together under the shock loading of a sudden 12v on/off is hard enough. 24v with relay control would result in instant busted motors.
>> All legal radio controlled systems are allowed to a max of 5 channels
> Why not over 5 channels? what if you are only using 2 channels
> and only have a 6 ch radio?
I imagine Cost is the idea behind this rule again, although theres really no bots that I know of that use more than 4 channels anyway, so its probably not needed.. but probably rick trying to stop richer people buying expensive 7channel PCM radios and having an advantage over those who can only afford a 2/3 channel AM
>> No external high energy spinning weapons
>> No projectile weapons unless tethered to the firing robot are allowed
>> No High pressure pneumatics are allowed , low pressure will be considered
>> Drill heads are allowed as long as the chuck is the keyed type of no more than 10mm internal diameter and the drill bit does not exceed 15 mm
>Why no saws and spinning weapons?
Safety for young kids, Avoiding destruction of their (probably weakly constructed) first bots and discouraging them from continuing on to learn when they get a pile of scrap back first time out.
I dont see why the chuck needs to be the keyed type though considering most battery drills are of the keyless type. Rick ??
>> Relays , servo switches or similar only
>> Actual modified "Drill trigger" controllers can get special approval
>Well allmost everyone has proportional speed controllers and they
> are allso the safest form of controller
Cost again Tim. Any ESC setup is going to cost a minimum of $150-$300.. The idea here is for Schoolkids who get $10/week pocket money to stand a chance.. someone with an ESC will naturally have an advantage over them.
Also, Rick wants to help teach young kids the sport of building Robots and understanding how they work, and relay control is hard enough to teach young kids who arent even sure what a relay is, much less trying to explain a MosFet PWM H-Bridge.
>> A clearly visible external orange light indicating the failsafe is engaged
> Will be very hard to do.
Easy to do with the Pic-axe-Relay-Controller, and not that difficult in other circumstances.
>> Banned materials items and things..Titanium , Kevlar , specialized metals and materials
> Personnaly i think if they want to spend the money then go ahead
Cost again. If you want to play with exotic materials, go play in the Pro Class.. Remember, we are trying to build bots for less than $100 here..
> The sprit of the comp is to have fun and build the best machiene you can
The Spirit of *THIS* category is for young builders to learn and have fun in. You want to play in the Pro class, go ahead, thats what its there for.
> Or am i just being picky?
No, I just think you misunderstood what this class is for... Its not intended for people who are already out there fighting and know how to keep their wheels on, charge their batteries, make their radio work, weld, etc etc..
Its for the young kid who says "Dad, I want you to help me build a robot !!", and Dad goes "Umm, well, lets see I have a few screwdrivers and a hacksaw in the garden shed", then asks one of the pro competitors how much they've spent, would be unlikely to get an answer of less than $1,000 and has to say "sorry Timmy, cant afford it" (and have no idea how)
I think its a great idea, and it will not only encourage young minds to have a go, but will also give the ones that like it a chance to learn before moving into the pro class, and will give us some "Filler" battles to give the Pro's more time to charge their batteries and make repairs as the pro class bots get more destructive. _________________ Great minds discuss ideas. Average minds discuss events. Small minds discuss people
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Thu Mar 31, 2005 8:32 pm |
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dyrodium
Experienced Roboteer
Joined: 24 Aug 2004
Posts: 6476
Location: Sydney
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Well, i think it's interesting and i would most certainly give it ago (cataclysm fits almost all those rules!). Also, what is meant by "low pressure" pnumatic systems, are you refering to el bravo as a high pressure system, or the judge, with 2000psi or something crazy?
Would also be good if something like this was worked out in each states arenas (ie, marayong), as if someone can't afford an esc, you can hardly expect them to travel interstate to compete.
By the way, i get about $50 a week, and building a bot has been hard enough, let alone heaps of people have given things to me! _________________ ( •_•)
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YEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAH
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Thu Mar 31, 2005 8:58 pm |
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