Subject:
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Re: A fast NXT 2.0 ball sorter
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 28 Dec 2009 10:42:12 GMT
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Viewed:
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17391 times
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> That's VERY cool Philo!
Thanks !
> Have you investigated speeding it up by unlinking the
> 2 sorter levels, ie move the top level for the next ball while the bottom
> level is still positioned for the current ball? May need a holding pen
> between level 1 & 2 though, which would likely push you over the 1 set limit.
I initially thought I would have to do that, but actually in this design the
speed limitation comes from the ball splitter mechanism (in the NXC version it
runs full speed without stopping). I have not tried with alkaline batteries
(here I use LEGO Li-ion battery), their higher voltage would make the sorter a
tad faster.
The other tricky timing is between color detection and first level switch. My
first program waited for the end of ball bassing before switching - it was too
long and flip occured while ball was in the switch, resulting in an ejection...
Philo
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Message is in Reply To:
 | | Re: A fast NXT 2.0 ball sorter
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| (...) That's VERY cool Philo! Have you investigated speeding it up by unlinking the 2 sorter levels, ie move the top level for the next ball while the bottom level is still positioned for the current ball? May need a holding pen between level 1 & 2 (...) (15 years ago, 27-Dec-09, to lugnet.robotics, FTX)
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