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In lugnet.technic, Allan Portillo writes:
> > > BTW I am going to use this gearbox in another model of a monster truck
> > > coming in around 8 months ( my building time is filled up until then ). It
> > > will have some improvements like limited slip diffs and 4 wheel steering (
> > > and maybe power steering if I can fit it in )
I'd be interested in an l.s.d if it could be packaged small enough.
Did you use worm gears on the axles as part of a telescopic drive shaft system?
> Now lets see. 63 degrees is 0.7 of a full right angle and it weighs 4.5
> kilograms. 4.5 multiplied by 0.7 is 3.213 kilograms of tractive effort. This
> is the power it has to go forward ( I think ). At this point the motors just
> stop with a twitch or two every now and then.
>
> In fifth gear it can travel 1.18 meters per second.
>
> Im thinking of trying to build a vehicle with a half decent tractive effort
> following your rules. My target is 14 kg although I have calculated that I
> can reach well over 18 kg ( Without it being so slow you can't see it moving ).
But can you do it without the transmisson exploding? :-)
Actually your figures sound right. I'd estimate my truck has pulled 12kg on
a trailer but these are very rough figure's (I'm asuming a house brick
weighs 3 kg). I've managed to stall the vehicle using my comparison test
method so the final total is more, but that utilize's a load pulled vertically.
Steve
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Message has 1 Reply:
Message is in Reply To:
 | | Re: a most slendid 4x4
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| (...) The steering was not impresive. It had a tunring circle of 1.62 meters. The worm gears in the axles meant that I could use fewer gears in gearing it down. This decreased the amount of play in the complete transmission and so starts climbing as (...) (23 years ago, 24-Oct-01, to lugnet.general, lugnet.technic)
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