 | | Re: A LEGO double-throw switch?
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(...) No, because it's only wrong half the time. HOWEVER, now that I think about it, you could mechanically connect two polarity switches together at the end with the motor. Then, instead of connecting one wire from each of the polarity switches to (...) (20 years ago, 22-Aug-05, to lugnet.robotics)
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| | Second fair themed vignette
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Hi everybody. Here is the second vignette I make. It's also the second vignette with a fun fair theme. It's a shooting stand. Here's the gallery: (URL) Notice the picture that highlight the baby T-rex I used as a plushie prize. What do you think of (...) (20 years ago, 22-Aug-05, to lugnet.build.vignette)
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| | Re: Who is this?
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(...) No idea, but it is most impressive. (And I note that James Cook/Endeavour connections go beyond Australia). Cheers Richie Dulin (20 years ago, 22-Aug-05, to lugnet.loc.au)
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| | Re: Who is this?
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(...) It's Aussiefest lately. Tim (20 years ago, 22-Aug-05, to lugnet.loc.au)
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| | Re: Who is this?
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(...) (20 years ago, 22-Aug-05, to lugnet.loc.au)
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| | Re: A LEGO double-throw switch?
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(...) I agree the simplest solution is to use a single switch with one linkage operated by the forklift to switch it on, and another linkage operated by the falling crate, that switches it back off, ready for the forklift. ROSCO (20 years ago, 22-Aug-05, to lugnet.robotics)
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| | Who is this?
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Does anyone know whose gallery this is? (URL) (20 years ago, 22-Aug-05, to lugnet.loc.au)
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| | Re: A LEGO double-throw switch?
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(...) Since turning the 9V wire connectors 90 degrees reverse the polarity, can't you play with how the wires are connected to the switches to re-reverse the polarity on one wire? (...) -Kyle (20 years ago, 22-Aug-05, to lugnet.robotics)
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| | Re: SanDLUG meeting July 28th
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(...) Just a reminder about the upcoming SanDLUG meeting. You can contact Bill or myself for the address. (URL) MatMat (20 years ago, 22-Aug-05, to lugnet.org.us.sandlug, lugnet.org.us.lugola)
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| | Re: Tripping a relay.
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If you hit a 5v latching relay with 9v, will it damage it? (20 years ago, 22-Aug-05, to lugnet.robotics)
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| | Re: Brick versions over the years
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(...) Some parts are tracked in the Peeron database as to when they changed, like the "Plate 1 x 1 with Clip Vertical" (4085a, 4085b, 4085c), which had 3 versions (Type 1: 1979-1987, Type 2: 1987-1992, Type 3: 1993-present). Other types of changes, (...) (20 years ago, 22-Aug-05, to lugnet.parts)
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| | Re: A LEGO double-throw switch?
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(...) Ok, Here's a partial solution (assuming you don't want to mechanically link the ends together). Given: Polarity Switch 1 - rotated forward by Forklift Polarity Switch 2 - rotated forward by crate when it arrives at the end Motor - located by (...) (20 years ago, 22-Aug-05, to lugnet.robotics)
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| | Re: A LEGO double-throw switch?
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(...) No, I think you should use one polarity switch, without handle to greatly reduce the friction needed to throw it. Putting the crate on the conveyor throws the switch, and when the crate gets to the other end it could push a lever, or better (...) (20 years ago, 22-Aug-05, to lugnet.robotics)
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| | Re: A LEGO double-throw switch?
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(...) Hi Brian, How will the package arriving at the other end "throw a switch?". Is there enough friction between the package and the belt? Will there be a mechanism in the belt itself to "go halfway and stop"? If you only used one polarity switch, (...) (20 years ago, 22-Aug-05, to lugnet.robotics)
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| | Re: Tripping a relay.
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Any body know of a typical consumer device that I could hack apart to find 6 to 9V "latching relay" from? (20 years ago, 22-Aug-05, to lugnet.robotics)
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| | Re: A LEGO double-throw switch?
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(...) hmm. At first, I would say "No". When you flip your switches at home, the switches could be in either of two states when the lights are "on". (one up, other down OR one down, other up) However, the LEGO polarity switches don't have to act like (...) (20 years ago, 22-Aug-05, to lugnet.robotics)
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| | Re: My humble opinion about LDraw animation
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(...) Poor XML has poor human-readibility. XML in general is fine. <part> <no> 13 </no> <pos> 10,12, 15 </pos> </part> is quite readable. (20 years ago, 22-Aug-05, to lugnet.cad)
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| | Re: My humble opinion about LDraw animation
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(...) XML has poor human-readibility. The text format should be accepted before it has a GUI front-end, and that can be only if it's readeable enough. Anyway, who writes the interpreter decides the format. Considerations, Damien (20 years ago, 22-Aug-05, to lugnet.cad)
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| | Re: My humble opinion about LDraw animation
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(...) You mean a movement should be a continuous function rather than successives position interpolations. If that's you mean then i agree. If not, can you be more explicit? Damien web page: (URL) (20 years ago, 22-Aug-05, to lugnet.cad)
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| | Re: A LEGO double-throw switch?
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(...) Yes I'm sorry for not drawing it.. but here goes Imagine you have a cable with ground and a cable with 9V You need two single pole, double throw switches (I don't know what kind lego switches are) For both switches, connect one throw to 9V and (...) (20 years ago, 22-Aug-05, to lugnet.robotics)
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