Subject:
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Re: 12 Tooth bevel gear case
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Newsgroups:
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lugnet.technic
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Date:
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Sun, 5 Oct 2008 14:11:43 GMT
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Viewed:
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13533 times
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In lugnet.technic, Adam Alper wrote:
> I am having the hardest time coming up with a gearbox that allows a 90 degree
> turn using the 12 tooth bevel gears or conical wheels. Every time i try to make
> one, the gears skip, or simply snap. Does anybody have a small, simple, home
> made version that can tolerate a lot of torque? Even the lego one, offered in
> the old Off roader (blue not motorized, set) cracks the gears. Help!
> > Thanks
The case/holder that breaks the gears is this one.
http://www.brickshelf.com/cgi-bin/gallery.cgi?f=345415
My project is to try to make A Deere 318, using the power functions medium
motor. I have a 9x gear reduction after the motor, before my home made case,
which allows the bevel gears to 'jump.' The case has to go from a north/south
arrangement to east/west, without skipping gears, but rather stalling the motor.
I have gone through too many gears.
The piece on the front of the model is dozer blade. This tractor has to push a
fair amount of weight over a carpet, and pull weight, not to mention the battery
box and motors. If i can, i want to stay away from the 24 tooth crown gear and
a worm gear.
I have faced this problem many times, and used the lego made one (Link above)
but have never been happy with it.
Here is a brickshelf gallery of pictures.
Thank you,
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Message has 1 Reply:
Message is in Reply To:
 | | 12 Tooth bevel gear case
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| I am having the hardest time coming up with a gearbox that allows a 90 degree turn using the 12 tooth bevel gears or conical wheels. Every time i try to make one, the gears skip, or simply snap. Does anybody have a small, simple, home made version (...) (16 years ago, 2-Oct-08, to lugnet.technic)
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