Subject:
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Re: Pinball INFO - passed on from builder
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 7 Nov 2005 18:13:33 GMT
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Viewed:
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2243 times
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In lugnet.robotics, Brian Davis wrote:
> In lugnet.robotics, Martijn Boogaarts wrote:
>
> > During LEGOWORLD 2005, we (Gerrit Bronsveld and Martijn
> > Boogaarts) have shown a -real-live-size- Pinball machine.
>
> And it is really impressive! Wonderful job, and a very nice write-up. A few
> questions:
>
> > - If you look close in the communication chamber we used the part
> > http://www.peeron.com/inv/parts/30208 30208 Cylinder 4 x 4 Hemisphere
> > Multifaceted to reflect the IR light to all the RCX units.
>
> Neat solution. I was wondering how you networked between the two IR
> communication chambers (the article is a little vague, refering to a "direct
> feedback loop" which could be anything). Also, as the point collector
> communicated with five other RCXs, how did you keep from loosing message in this
> chamber?
not sure what you mean:
but - we have 2 chambers, therfore 2 main listners, this made sure the point
collector (PC) was able to recieve all the points, and this RCX uses a
motor-rotation sensor-rotation sensor construction to transmit the points to the
newball RCX. thisone also has a Motor-rotoation-rotation construction to
feedback the counted points.
the newball RCX uses IR to send the points to the 2 RCX's used for the main
display.
>
> Also, the article mentioned that "So it was a real challenge to come up with
> a system to guarantee that the display and the 'internal' points are equal." How
> did you end up doing that?
mechanical (see above)
http://www.brickshelf.com/cgi-bin/gallery.cgi?i=1461377
>
> Again, your creation is a very wonderful application - I'm sure it was
> wonderful seeing the faces of all (kids & adults) as they saw this.
sure it was ! we enjoyed showing it to them.
(I plan to create a little movie so you can see it as well :)
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Message has 1 Reply:
 | | Re: Pinball INFO - passed on from builder
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| (...) You answered my question very clearly, thank you. This sounds like a nice feedback system using the rotation sensors, and could be used to signal a lot of things. Do you use a single axle connecting two rotation sensors where the axle can be (...) (18 years ago, 7-Nov-05, to lugnet.robotics)
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Message is in Reply To:
| | Re: Pinball INFO - passed on from builder
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| (...) And it is really impressive! Wonderful job, and a very nice write-up. A few questions: (...) Neat solution. I was wondering how you networked between the two IR communication chambers (the article is a little vague, refering to a "direct (...) (18 years ago, 7-Nov-05, to lugnet.robotics)
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