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Whoa, I gotta think about this one for awhile.....
In lugnet.robotics, Robert Fay writes:
> The closest thing to an anti-backlash gear is the Conical gear (a misnomer).
> It can be used to load a gear train. I have used this in a design by Iain
> Hendry.
> http://bobfay.users5.50megs.com/newmill.htm
>
> I have tried using a second motor in the gear train with a slight reverse
> current. This pretty bulky.
>
> I think the gear you want is a sandwich of two gears that are spring loaded
> so the teeth oppose each other. This would work in a small gear train.
>
> There is another example of the conical gear at the end of this page.
> http://bobfay.users5.50megs.com/speedy.htm
> --
> Bob Fay
> rfay@we.mediaone.net
>
> http://bobfay.users5.50megs.com/index.html
> http://www.geocities.com/Heartland/Bluffs/7900/
> "Eric Sophie" <Legomaster@gobi.com> wrote in message
> news:GB7x2F.J0G@lugnet.com...
> > Tech question for us: Any body know what an Anti-Backlash gear is?
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It's not so much the "conical" gear that takes the backlash out of the setup
that Bob Fay provided links to, but the ability to use the technic axles as
torsion springs and keep the gear teeth in the train loaded at all times.
That particular gear does make it much easier to do this trick with out
breaking LEGO(R) parts though : )
HTH,
Xanthra47
"Bob Fay" <rfay@we.mediaone.net> wrote in message
news:GB7y67.LCK@lugnet.com...
> The closest thing to an anti-backlash gear is the Conical gear (a misnomer).
> It can be used to load a gear train. I have used this in a design by Iain
> Hendry.
> http://bobfay.users5.50megs.com/newmill.htm
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Bob Fay wrote:
> The closest thing to an anti-backlash gear is the Conical gear (a misnomer).
> It can be used to load a gear train. I have used this in a design by Iain
> Hendry.
> http://bobfay.users5.50megs.com/newmill.htm
>
> I have tried using a second motor in the gear train with a slight reverse
> current. This pretty bulky.
>
> I think the gear you want is a sandwich of two gears that are spring loaded
> so the teeth oppose each other. This would work in a small gear train.
>
> There is another example of the conical gear at the end of this page.
> http://bobfay.users5.50megs.com/speedy.htm
> --
> Bob Fay
> rfay@we.mediaone.net
>
> http://bobfay.users5.50megs.com/index.html
> http://www.geocities.com/Heartland/Bluffs/7900/
> "Eric Sophie" <Legomaster@gobi.com> wrote in message
> news:GB7x2F.J0G@lugnet.com...
> > Tech question for us: Any body know what an Anti-Backlash gear is?
What set(s) include this "conical" gear?
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In lugnet.robotics, Jonathan Wilson writes:
> What set(s) include this "conical" gear?
Far as I can tell, these are the gears used in the gearboxes in 8880, 8448,
8480, and prob'ly others.
ROSCO
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