Re: tranny

[paul needham <paul.2.needham-at-btconnect.com>]

Someone in the UK with chain and not TTS with no slippage burnt out his
speed controller when a rag got picked up by the tracks and locked them
up.
Of course with the Tripac controller that is not expensive or fatal
!
regards Paul

Always remember the golden rule with electronics if you let the smoke out
, they don't work again as there is no way of getting the smoke back in.


At 17:49 06/09/2004, you wrote:
> It all comes down the track
> system you are using. If you are using the TTS there is no need to have
> slippage in your tranny. If you are using attachment chain there is. I
> stripped a wheelchair motor gears when there was no Vbelt in the
> system.
>
> I used #40 chain with 3/4" shafts because that's what I found
> surplus.
>
> Will
>
> adt22-at-drexel.edu wrote:
> > I just finished a transmission for a set of EV Warriors, (disclaimer
> > about taking my advice: everything spins, but it otherwise untested).
> >
> > It sounds like you already have motors, if you don't I would recommend
> > getting wheel chair motors.  All in all its probably cheaper and
> > faster development time.  Anyone have experience with this?
> >
> > So if you still want a dual stage 9:1 reduction I would recommend
> > 5/8" shaft size.  While, I'm sure that is overkill in terms of
> > strength, that seems to be the most popular size to find bearings,
> > sprockets and pulley's in.  In my shopping experience I've found
> > pulleys to be cheaper than sprockets and unfortunately chain to be
> > cheaper than adjustable v-belts, so there is a trade-off.
> >
> > I don't beleive in this whole slippage thing, (its built into my system
> > just in case :) , but) I would like to hear from someone that has
> > benefited from this.  Wouldn't an appropriate sized fuse save the
> > motors also.  Fuse vs. slippage depends on how
> > often     the tracks lock up though . . .
> >
> > Good luck
> >
> > ----- Original Message -----
> > From: chris barthelson
> > <barthelson88-at-hotmail.com>
> > Date: Monday, September 6, 2004 7:22 am
> > Subject: tranny
> >
> >  
> > > hello everyone
> > > Just a couple of questions. What size shaft should I use for my 
> > > transmission? And I want a duel stage 9:1 reduction what is the 
> > > cheapest way 
> > > to achive this??? And I'm using tts tracks so I dont need any 
> > > slipage 
> > > right??
> > > Thanks,
> > > Chris. B
> > >
> > > _________________________________________________________________
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> > >
> > >    
> >
> >