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"Marc en Wendy" <marcmethorst-at-zonnet.nl>
Re: Lynx Scooter drive system [TANKS]
Mon, 17 Apr 2006 09:49:55 +0200
> I have been wondering if this single motor and
drive system will work on a tank. Since it has a differential drive
axle, wouldn't a simple brake on each drive
sprocket work to steer it? Or is it more complicated than
I have been thinking the same. I can't show it with
numbers but my guess is that it is not an efficient way of using energy. Driving
full speed and then constantly braking one of two tracks will cost a lot of
energy. Not the driving energy, but the friction and holding energy of the
slowed down track is the killer in my opinion.
There are electromagnetic brakes available for
wheelchair motors for parking brake purposes, but I don't know how they'll
hold up doing constant braking.
The other way is hydraulic brakes of course, but I
doubt that a servo is strong enough to push some sort of lever or pedal to bring
one shaft completely to a halt. A hydraulic pump is then needed to produce the
braking power, which will take a lot of energy from the battery.
My two cents: if you want simple, use two motors.
If you want innovation: go ahead, I'm looking forward to the pictures! It hasn't
been done in the hobby, so you could be the proud inventor of the ''HDS''
(Hutchins Drive System), the standard in R/C Tank Combat in 2008!!