Filling for go-cart tyres.

[swedemac]

We are looking for something to fill our go-cart tyres so that they become harder to puncture.
I know Team Tornado use something to fill their tyres but I cant find any info on their, rather massive, homepage.
Any tips on what is suitable to use, anyone?

[teamchip]

Filling for go-cart tyres.

I think the Stinger team used foam pipe insulation (available from plumbers supplies) as it was seen coming out of one of their tryes in a RW fight a while ago (dont know the opponent or series)

Also I think expanded polyeurathene (cant spell!) foam...the aerosol type has been used.

There is also a substance called green slime here: http://www.bicyclemagic.com/products.php?plid=m2b49s92p776http://www.bicyclemagic.com/products...d=m2b49s92p776 for bike tryes. Not sure if it would work on a large hole from a powerful axe etc.

I have never used any of these (we have solid tyres) so have no idea how effective any are but the info may be of help.

Tom

[andrewj]

Filling for go-cart tyres.

Stinger vs Pussycat in a Robot Wars Extreme 1 All Stars match, they dont call me a genius for nothing :wink:

[maddox]

Filling for go-cart tyres.

upholsteryfoam, cut out in a tight filling ring, put into the tires can save the day.

[woody]

Filling for go-cart tyres.

Markus....
Extract from Tornados diary.

14/5/01 - Ordered the furniture foam for the wheels from TS Covers in Peterborough. Cut the silver steel for the new removable spikes at work at lunch. Spent the evening working on the weapons motor cradle and chassis mounts. Planned the side bars, stand and trolley.

[swedemac]

Filling for go-cart tyres.

Foam pipe insulation, green slime lol, upholstery foam, furniture foam...

So much to chose from, so little time. Thanks for the advice though guys. Ill try to find the products youre talking about (though green slime might cause some laughing ) here in Sweden.
Will probably go for the lightest stuff first then the cheapest. Building HW:s is a heavy and costly business...but you all know that already.

[mattan]

Filling for go-cart tyres.

Ghostbusters anybody ??? slimer = green slime GHOST ASG

[Mouldy]

Filling for go-cart tyres.

Make sure you dont buy air drying foam...once its in the wheel there wont be any air presant...so youll be left with a tyre full of goo:sad:

Dave moulds
Team Turbine

[hannibal]

Filling for go-cart tyres.

I filled Hannials kart tyres with poly foam. The advice is to add some water inside the tyre b4 filling with p/foam, this apparently activates the foam.

[galexa9308]

Filling for go-cart tyres.

When I was at the ideal home exhibition last year,there was a guy displaying car puncture stuff, he was sticking this spike through the tyre, time after time, and it was sealing it great, but he said it wouldnt cope with a slash type puncture, so Id guess theyd be of limited use in robot tyres

[killercarrot]

Filling for go-cart tyres.

If you go to ATS (the industrial division) they can send them away to be filled with a rubbery compound to make them puncture proof.
I have a pair of kart rears treated in this way , BUT they are sooo heavy I cant use them, probably about 5 kg a piece now.
The cost was comparable to buying puncture proof tyres from technobots, I think they came out at about £25 a tyre (depending on tyre size... these are wide rears, narrower rears or fronts would be cheaper) plus a tube plus obviously VAT... didnt manage to wangle any freebies on that deal...
I dont think Ill be using them, so make me an offer... trouble is postage will probably make it not worth while.

[swedemac]

Filling for go-cart tyres.

Thanks, but I got shudders from reading that weight . 5 kg a tyre is simply to much...even if they probably could take a direct hit from a bazooka .

[Guest]

Filling for go-cart tyres.

that green slime, is available in halfords and bike shops, its only good for holes up to 5mm big, i know this because i have used it on my bike. So i suppose its not good for robots.
Danny

[jeremy_cuss]

Filling for go-cart tyres.

Markus,

I had rear go-kart tyres on my last robot, and found that I could run them with vitually no air pressure for a 100kg robot. So I never filled them with the foam that I had bought, and that certainly saved weight. I did make sure that the tyres were fairly well protected within the body of the robot. You may not need the foam. Check out your robot first. (Obviously you may need significant air pressure in the tyres to achieve your design surface clearance, but otherwise.....)

Jeremy

[swedemac]

Filling for go-cart tyres.

Ok, thanks Jeremy. We will wait with the filling till we know how the robot acts with different tyrepressures.

BTW...any good advice on how to best separate the wheel from the hub? Its really tight and I dont want to ruin the only pair of tyres we have .