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From: |
<funkyneroc-at-ntlworld.com> |
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Subject: |
Re: metal tracks [TANKS] |
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Date: |
Tue, 10 Apr 2007 22:15:26 +0100 |
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Reply-To: |
tanks-at-rctankcombat.com |
I`m, toying with the Idea of using hinge tracks ,dont know yet,I like the roller
chain way of things.( and I`ve now got treadmill)
>"the little rods that engage the tracks will bend. I'll have to find out."
What little rods? do you mean axle?
I hope you mean the drive rods, from your drive wheel
neroc
>
> From: "Chrysanthos Kanellopoulos" <xchrysk-at-otenet.gr>
> Date: 2007/04/10 Tue AM 05:23:06 BST
> To: <tanks-at-rctankcombat.com>
> Subject: metal tracks [TANKS]
>
> They are not all that heavy Neroc. Every meter of 3 inch-wide track weighs
>together with the bolts and nuts, 1.3 kg only. I would think that in a 3 foot long
>tank with hinges 4 inches wide, the weight of each track would be about 4 kg - a
>total of 8 kg for both tracks. This shouldn't be heavier than a roller chain
>track. When you think that a 24 V motor for a scooter carries teh weight of a
>15-year-old, and you use TWO of these motors in a 35 kg heavy tank, 8 kg on the
>tracks is not an awful lot of weight. WHat I fear is that in my 3 foot long tank,
>the weight will be such that >
> The good thing about them is that the hinges are completely closed. Unlike teh
>roller chain tracks that have gaps between teh pads, the hinges don't allow
>little wooden sticks or rocks to stick in between and possibly jam. And unlike
>belts that use a friction system, they don't have to be stretched , so you can
>enjoy the sagging. That gives you some tolerance too. MOtors and ball bearings
>don't suffer. HInges are cheap, and you don't have to devise special pads. They go
>up concrete ramps 30 degrees from horizontal. When sand gets into the pivots
>part, it fills in the pivot and the track stretches, but only a little. if 1/10 th
>of a mm of sand in every pivot, that results in an overall of 1 cm per track, or
>5mm of tensioning - maximum. SOme fine tuning is part of the fun in the hobby.
>
>
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>
>
> >Chrys your hinged tracks are great.
> >For me they could go in the how to, section.
> >but they must be heavy.get yourself some treadmill.
>
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