 | | Re: drawbridge —Larry Pieniazek
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| | | (...) or did you work from memory or? Did you have any challenges in keeping the two motors sychronized? That's been a bugaboo for others, that one side or the other raises a bit too fast and skews things. I think this is my fave shot: (URL) thanks (...) (21 years ago, 28-Apr-03, to lugnet.technic, lugnet.trains)
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| | | | | Re: drawbridge —Christopher Masi
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| | | | (...) That is a nice bridge, but I was chiming in to comment on syncronization... Has anyone tried using a single motor, and putting the motor in the span? I know it isn't prototypical, but if the motor was in the span, and the string/chain was (...) (21 years ago, 29-Apr-03, to lugnet.technic, lugnet.trains)
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| | | | | | Re: drawbridge —John Gerlach
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| | | | | In lugnet.technic, Christopher Masi writes: <snip> (...) The GMLTC tried that on our previous layout. We had a motor mounted in the span, geared down to technic 8-tooth gears on each corner. The gears would engage this piece: (URL) (1x20 gear rack) (...) (21 years ago, 29-Apr-03, to lugnet.technic, lugnet.trains)
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| | | | | | | Re: drawbridge —Rob Hendrix
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| | | | | | Chain: been there done that, it wasn't a pretty sight... Lego chain is not strong enough for the weight and forces a lifting mechnism will put on it. I tried chain on my lift bridge before eventually moving on the string. I bought over $120 worth of (...) (21 years ago, 29-Apr-03, to lugnet.technic, lugnet.trains)
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| | | | | | | | Re: drawbridge —John Gerlach
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| | | | | | (...) Thanks for the tip, I guess we'll cross that off our "to try" list! JohnG, GMLTC (21 years ago, 29-Apr-03, to lugnet.technic, lugnet.trains)
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| | | | | | Re: drawbridge —James Powell
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| | | | (...) I used a single motor, with all cables being passed above the top of the span to get to the far side (4 cables). One trick that I would do if I was building another one is to make the cable drums easier to adjust to one another, since they (...) (21 years ago, 30-Apr-03, to lugnet.technic, lugnet.trains)
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| | | | | | Re: drawbridge —Øyvind Steinnes
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| | | | "James Powell" <wx732@freenet.victoria.bc.ca> wrote in message news:HE4yp6.15uI@lugnet.com... (...) span (...) building (...) since (...) (rope (...) Just a thought when reading this thread: If you have trouble with motors that do not run with the (...) (21 years ago, 1-May-03, to lugnet.technic, lugnet.trains)
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