Well I don't think a weight bonus is really needed. Robots like 101, Mortis, El Diablo all competed with varying sucess and didn't need bonus weight to do so. Also Trax from the UK did fairly good in Series 7 until knocked out by Storm 2.
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If you were skilled enough to do a good job of building tracks you probably wouldn’t be asking these questions do you have anyone helping you who has a welder and preferably a lath?
If not best you stick to just wheels for your first bot, just surviving up your way is getting tough enough without burning up precious weight points on cosmetic additions.

As far as the UltiBot comp being good for tracks they seem very determined to stick with their weight limit and I would be really surprised if they allowed any extra weight to someone because they had rubber band tracks.

I doubt that the terrain will be worse than driving around on the average suburban front lawn, bit of grass bit of dirt in don’t water the lawn Sydney.

My reasons for thinking that is Netbot runs 100w scooter drives x 4 and that’s about as much off roading as it will cope with and the arena is so far away from the control bunker that any bumps in the topography will interfere with line of sight to the fighting units for those using laser com links etc and us with our optical binoculars trying to mare out what hell is going on.
Or maybe I am thinking of a disaster area rock concert. Have to call one of the Rotwang bots the Black ship.

quote:

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Originally posted by Glen:
btw george is POD a fighting robot or just a nice show piece?

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The new version of Mortis, called Mortis Infranor is suppose to be able to do 30MPH with tracks. It has two gearing options, a two speed hammer and lifter.

More info over here: http://www.fightingrobots.co.uk/forum.htm "Search for Maelstrom"
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how would rubber belt tracks do with a whipper snipper powering them
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That would depend more on what was in the middle than either end (so to speak)..

Petrol powered Drives are *very* difficult to do. You require starter motors, clutches, reversing, differentials, fuel feed systems that wont stop when tipped on their side or upside down and so on. There have been very few ICE Drive bots that have actually worked.

Rubber-band track belts sound like they would be easy to do, but I havent done them, so I might be talking through my hat..
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Last edited by Spockie-Tech on Sun Nov 27, 2005 12:20 am; edited 1 time in total

that link george posted with the servo powered chainsaw gearbox would be perfect... would be interesting to see a chainsaw powered robot driven through a really solid version.. if only i knew how the worked

but why would you want to use gas power anyway... dont they generate high power at high rpm which is totally the opposite to whats needed..
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I think you mean *low* rpm there Glen.

Petrol Motors are quite good at generating power at high rpm, but at 0 rpm they stop/stall and need to be started again, which is opposite to what we want.. for a drive system anyway

You want maximum power at 0 to low rpm to start and stop the bot all the time.. not many bots have to move in a straight line for more than a few seconds at a time. Not what a petrol motor is good for at all.

Thats one of the reasons trains are electric and you dont see Petrol Powered Elevators and the like..
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That's why it is beneficial to use a hydrastatic drive with an IC motor so you can use the full torque and HP of the motor at all ranges of the required speeds. Black Knight has used this form quite sucessfully...
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Wilko lets see if I have got this right.

You won’t to build a robot as a school project, capable of fighting in the featherweight class at the HOC, Using rubber band tracks and a wiper sniper ICE powering the drive? And a wiper motor powered saw?

You have $500 and a POP consisting of a fire extinguisher, circular saw blade, Pegout parts and a wiper sniper?
Your school is giving you the use of tools lathe welder etc?
You have a team of? School friends helping.

You wont to know if an IC drive powered tracked bot with an electric wiper motor powered saw are the way to go.

Ronin one of the old Battelbot competitors was similar to that.
He used the IC to drive the saw and the electricity for the track drive.

If I had to try and build something out of your parts and tracked, saw, IC preferences something along the lines of Ronin is the way I would go.
Try finding team Sinister.

I would keep the fire extinguisher handy to put it out whenever it catches fire.

no i'm not using a wiper motor i'm either using a 12v buff for the blade or the whipper snipper for drive and blade.
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i've got it!!! one of those cogs that drive one way but just spin the other hooked up to a flywheel+blade that way when i'm going it spins up the flywheel conected to the bade then when i stop the blade keeps going
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Basically a freewheel sprocket off a pushbike. For that effect, I'd just use the clutch on the IC motor...
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yeah but i'm using the ICE for powering the bot as well as the wepon other wise the flywheel would keep the bot moving and stop the blade quicker
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and for the feul tank i'll hav it pivoting so the tank stays level all the time
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