Subject:
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Re: (no subject)
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Newsgroups:
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lugnet.technic
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Date:
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Fri, 27 Feb 2004 18:25:07 GMT
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Viewed:
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4367 times
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[ chnic, Bob Kojima wrote:
> i have just posted pics of my rolling ball clock on brickshelf:
>
> http://www.brickshelf.com/cgi-bin/gallery.cgi?f=73767
>
> here is an explanation:
>
>
> This clock is based on the Arrow Handicraft Deluxe Rolling Ball Clock that
> was popular in the 80's.
*snip*
>
> During debugging improvements were made like adding extra guard rails so
> all the balls would return to the ball holder and not the ground. One
> problem that i have not solved yet is the lift mechanism is not 100%
> accurate. Very rarely, 2 balls are lifted at the same time or no balls are
> lifted at all. But i think that the no lifts and the 2 ball lifts even
> then selves out because after running for 3 days at Brickfest PDX it was
> only about 1 or 2 minutes off.
Oh, I'm going to sheepishly chime in here - I 'set' the clock a couple of times
during the weekend. I was so completely amazed and fascinated with it I just
couldn't bear for it to not be accurate!! But once it was set, it seemed to be
accurate to within 1 or 2 minutes an hour. Have you considered adding an RCX
for even better time accuracy?
Bob, this thing is just fantastic, and it was by far my favorite MOC at
Brickfest PDX. Congrats on a great job!
Now, I hope you don't mind if I steal *ahem* "borrow" your lift design for a
project we've been kicking around (no soccer pun intended!)... ;-)
JohnG, GMLTC
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Message is in Reply To:
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| i have just posted pics of my rolling ball clock on brickshelf: (URL) is an explanation: This clock is based on the Arrow Handicraft Deluxe Rolling Ball Clock that was popular in the 80's. To tell the time read the hour from the 3rd row of balls. (...) (20 years ago, 25-Feb-04, to lugnet.technic) !!
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