 | | Re: set 8074 question
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(...) Check out peeron: (URL) 75 DkGray Technic Flex-System Hose (Pic) 14L 1 75 DkGray Technic Flex-System Hose (Pic) 5L 1 75 DkGray Technic Flex-System Hose (Pic) 6L multiply the length of the tubes by 8mm (20 years ago, 8-Dec-04, to lugnet.technic)
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| | Re: The Great Ball Contraption (was Re: Rolling ball clock revisited)
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(...) One thing Steve forgot - think constant noise. Constant, *constant* noise. But it is a lot of fun... (20 years ago, 8-Dec-04, to lugnet.technic, lugnet.robotics)
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| | Dennis Bossman
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I like the flat bed truck model with the back-hoe on it. I can't remember where the link is to the picture, but remember it well. Is it on a website? (20 years ago, 8-Dec-04, to lugnet.technic)
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| | The Great Ball Contraption (was Re: Rolling ball clock revisited)
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(...) This announcement isn't quite ready, but while we're on the subject of rolling [soccer] balls, I figured I'd leak out a bit of info. We're working on a standard (currently in testing) for modules for "The Great Ball Contraption." Think Rube (...) (20 years ago, 8-Dec-04, to lugnet.technic, lugnet.robotics)
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| | Re: RCX has a fast clock, was Re: Rolling ball clock revisited
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(...) As David Ward suggested me, the oscillator is most probably equipped with a ceramic resonator with built-in capacitors. This explains the low precision of the clock (tolerance for ceramic resonators is in the 1% range while for crystals it is (...) (20 years ago, 8-Dec-04, to lugnet.technic, lugnet.robotics)
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| | RCX has a fast clock, was Re: Rolling ball clock revisited
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Hello dave, (...) A made an experiment this night using a RCX 2.0, the clock was fast by about 10s per hour. I suppose that this problem comes from bad capacitor loading of the crystal used on RCX. Crystals need to see some capacitance to oscillate (...) (20 years ago, 8-Dec-04, to lugnet.technic, lugnet.robotics)
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| | Re: Rolling ball clock revisited
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Hi Rob, (...) I tried a similar mechanism (a large inclined plane with a width reduction in the end), the problem is that LEGO balls are somewhat rough, and they tend to form a locked arch above width shrinking. I even tried to add a stirring (...) (20 years ago, 8-Dec-04, to lugnet.technic, lugnet.robotics)
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| | Re: Rolling ball clock revisited
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(...) Thanks, Bob! I hope you'll get as much pleasure building my arm as I got building your clock... Philo (20 years ago, 8-Dec-04, to lugnet.technic, lugnet.robotics)
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| | Re: Rolling ball clock revisited
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"David Eaton" <deaton@intdata.com> wrote in message news:I8DHDr.u1s@lugnet.com... (...) Not exactly what I was thinking, but you're close. If you stick your bendy straw in your 1/2 pint chocolate milk and then turn it upside-down, that's more of (...) (20 years ago, 7-Dec-04, to lugnet.technic, lugnet.robotics)
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| | Re: Rolling ball clock revisited
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(...) So, what exactly is a gravity tube? Maybe you mean something like: Empty Full Half-full | | |o| | | | | |o| | | | | |o| |o| | |___ |o|___ |o|___ |_____ |o____ |o____ Hence, when a ball comes in (from bottom right of the tube), it pushes a ball (...) (20 years ago, 7-Dec-04, to lugnet.technic, lugnet.robotics)
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