Subject:
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Re: RC bot base
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Mon, 4 Aug 1997 16:11:03 GMT
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Original-From:
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Bob Avanzato <rla5@SAYNOTOSPAMpsu.edu>
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Viewed:
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1286 times
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Hi,
A few students here at Penn State Abington successfully controlled the
Zig-Zag using a 6270 board with both a 6volt and 9.6 volt supply using a .5
or 1 ohm series resistor. If I remember correctly the current is in the 2
amp range when loaded. Also, we discovered that the retractable wheels will
not deploy correctly with the additional weight of a controller board and
some batteries, and we were forced to replace the springs - nothing is
simple. The two Zig-Zags were entered in the 1997 Trinity fire-fighting
competition. They were able to successfully navigate the entire maze with
shaft encoders, but both suffered software problems during the candle
extinguishing phase.
You may want to consider a separate H-bridge circuit or hack the
circuitry in the R/C platform itself if you plan to use the HB. Don't
forget about the potential weight problem. Good luck.
-Bob
At 08:10 PM 8/1/97 +0100, defreese@gate.net wrote:
> Hello All,
>
> I have just purchased a new TYCO 9.6V Zig Zag car.
> It seems to have a fairly good base w/treads.
> I connected it to the handyboard (after gutting it
> and extending the wires ). Next I gave the motors
> a test and they both ran way too fast. My question
> is can the handyboard handle the motors or is it
> that I need to connect a resistor or ... This base
> seems perfect for a mobile robot base but it looks
> as if it may need some work.
>
>
> Thanks for all da' help,
> RANDY
> P.S.
> The motors have a ceramic disc capacitor hooked
> between the neg. and pos. leads.
>
>
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