Plus if the wheels get shredded or damagaed its not the wheels fault they are damaged.

Its like blue max versus tombstone, nearly all 4 wheels were mangled and/or torn off but thats because there mounted to the outside of the robot.
AFter the match they walk up going stupid wheels, they are far too weak.

It is the builders job to either have them mounted inside the robot or to have protection for them.

The only robot i have seen with strong wheels to stand up to spinners is richochet (12 pounder titanium robot. Dandelion tried many tmes to knock wheels off and landed fair few direct hits yet no significant damage and they stayed on.
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Andrew Welch, Team Unconventional Robotics

Nice work Jake, that's very professional looking! One thing I noticed with moulded tyres like Colsons is that even when they get cut quite badly, they tend to hold together well. If you are adding kevlar out the the edge of the wheel, then its likely to do even better than Colsons and way, way better than red wheels. 10/10
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Australian 2015 Featherweight champion
UK 2016 Gladiator champion

you dont want any fiber near the thread, if you wear through to it you will wind up just running on the (slippery) fibers.
I think people are going to wind up breaking something else before they break the wheels.
if you have a propegating split you will want to replace them anyway but i think you could cut pretty much through the tyre (diamiter wise) and you would still last a round.

we are also looking at "compound" tyres, a stiffer center and a *really* soft tyre, "qualifiers" (or finals) type stuff, for that extra little bit.
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Mechanical engineers build weapons, civil engineers build targets

quote:

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Originally posted by Valen:
we didnt seem to have any problem with whatever that pile of bolts brett had was.. after all our rounds our urithane treaded wheels are showing only a few minor nicks in them.

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we were trying to work out how to make an adaptor for the red wheels so they could be propperly mounted to the shaft of the drill. and eventually we decided this would be cheaper.

glen says he goes through a set of red wheels every event (and i've seen him do 2 or 3 changes ;-P)
other reason we are doing this is it should protect the gearboxes (that was actually our prime motivation), we wanted something that would give the gearbox a bit of time to decelerate when it does that whole flying through the air whilst driving and landing pointing backwards. It wont be much but quite an improvement over a red wheel i think.
could we collect some stats on how the drill gearboxes fail?
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Mechanical engineers build weapons, civil engineers build targets

only time ive lost a gearbox is when on cobra 1 (the little lexan box with blue hammer) when the tread peeled off and i started driving on the wooden wheels and it snapped off a pin. twice that happened.

ive seen nick do in a few. all where of the pins IIRC. also jeff j has broken a few with his massive wheels.

it should be nice to have traction and not worry about the wheels unscrewing .
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www.demon50s.com - Minimoto parts
http://www.youtube.com/user/HyzerGlen - Videoooozzz

ive been playing around with these two wheels now and they get my approval thus far.

endless amounts of traction yet the mildly compressible (squigy even lol) tread really reduces the shock. i dropped it today from about waist height and it did 3 bounces of the ground before settling back down.

pushing power is way up, the things are nice and easy to screw straight onto the thread (after you get all the red wheel crap out of the drill thread lol) .

best of all the things dont wear out fast. i reckon i could go at least half a season if was going full out non stop every fight.

good product i say
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www.demon50s.com - Minimoto parts
http://www.youtube.com/user/HyzerGlen - Videoooozzz

Could you make me some 4inch ones sometime after the next robowars and ill see how they go?

How much do they weigh?
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Tim Team Reaper.

they are about 4" (about 100mm) already, and i think they weigh about 10 grams more than a read wheel. they are also about half the width as well which is damn handy.
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www.demon50s.com - Minimoto parts
http://www.youtube.com/user/HyzerGlen - Videoooozzz

hmm sounds like ill be getting some then for home use to save my colsens for battles
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Tim Team Reaper.

ill check them out either next event or next time i see Glen. May buy myself a pair for next season also. Depends though because for 50 bucks for 2 wheels they would have to wow me a great deal for that.

Also Kerrison Bros- i remember reading back on u guys bought a tap for drill shaft thread for modyfying wheels. Just wondeirng what u guys did, what size the tap was and how its working for u.
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Andrew Welch, Team Unconventional Robotics

you mean use the colsens to save these for battles?
;-P
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Mechanical engineers build weapons, civil engineers build targets

Well there both the same price butt the colsens are only 126grams each with hubs and i can see them staying together better so ill see how i go
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Tim Team Reaper.

quote:

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Originally posted by andrew:
Also Kerrison Bros- i remember reading back on u guys bought a tap for drill shaft thread for modyfying wheels. Just wondeirng what u guys did, what size the tap was and how its working for u.

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@ Andrew - I may have the proper tap, but if not I can get one very easily or you could go to the Lee Bros 'Nut House'. They should be 6-8 dollars. Make sure you ask for UN F or you will get the more common UNC (coarse) thread.
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Australian 2015 Featherweight champion
UK 2016 Gladiator champion