Subject:
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Re: multiple motors
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Tue, 4 Nov 2003 19:58:12 GMT
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Viewed:
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3775 times
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In lugnet.robotics.rcx, Travis Kunce wrote:
> Hey ya'll
>
> I'm building my first sumo bot, and have a suber basic question. What happens
> when you hook two motors to the same output of the rcx.
>
> This answer should hopefully help me decide weather the bot is made with 2 or 4
> drive motors. currently i have 2 motors, but the deign i'm using could easily
> be adapted to fit 4 if there is any advantage to doing so.
>
> thanks for any help you can give me.
Travis,
I've had a reasonable amount of success building sumo robots, and I always try
to use 2 motors per port. (some rules don't allow that)
It's my understanding that the motors draw ~250 milliamp when stalled (that's
when they draw the most current) and the RCX is current-limited to ~500
milliamp. So, putting more than 2 motors per port will not help you.
This type of configuration will just fit into a 2 lb robot, which is a very nice
weight limit for a LEGO sumo robot contest.
And my BIGGEST piece of advice for your sumo robot: make SURE it does not leave
the sumo area on it's own. This may sound silly, but it ALWAYS happens to
someone. Make sure it's not you.
Steve
BTW, if you hook up a couple motors to your RCX, and it blows up, don't blame
me.
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Message has 1 Reply:
 | | Re: multiple motors
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| (...) ...I love understatment. sigh... (...) OK, in trying to implement this I've come to an interesting impasse. Calculations suggest that for a 4 lb sumobot with reasonable tires would "benefit" from six motors, three on each side (differential (...) (21 years ago, 25-Nov-03, to lugnet.robotics.rcx)
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Message is in Reply To:
| | multiple motors
|
| Hey ya'll I'm building my first sumo bot, and have a suber basic question. What happens when you hook two motors to the same output of the rcx. This answer should hopefully help me decide weather the bot is made with 2 or 4 drive motors. currently i (...) (21 years ago, 4-Nov-03, to lugnet.robotics.rcx)
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