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(...) I don't follow. It appears your diagonals go in both directions, mirrored about the center of the bridge: (URL) did you mean that your diagonals go from top right to bottom left (looking at the right-half of a span), and the diags on my (...) (21 years ago, 29-Apr-03, to lugnet.technic, lugnet.trains)
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| | Re: drawbridge
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(...) Ok, here's my idea for a solution for a vertically lifting bridge. All you need is one winch connected to one lifting line. You also need one control line(running off the same motor but geared down 2:1). The lifting line goes up the first (...) (21 years ago, 29-Apr-03, to lugnet.technic, lugnet.trains)
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| | Re: drawbridge
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(...) i'm using eudora to read and send to the news group. that is probably what my problem is. ¤º°`°º¤ø,¸¸,ø¤º°`°º¤...¤øø¤º°`°º¤ Bob Kojima ko@fial.com (URL) Incorporated Telecom Monitoring Solutions 4343 SW Corbett Ave Portland, OR 97201 (...) (21 years ago, 29-Apr-03, to lugnet.technic, lugnet.trains)
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| | Re: drawbridge
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(...) your spreadsheet is awesome. it worked great for calculating the length and heights. the only small problem was that the diagonal braces on my bridge all go in one direction, which your spreadsheet does not model. so your spreadsheet could (...) (21 years ago, 29-Apr-03, to lugnet.technic, lugnet.trains)
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| | Re: drawbridge
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(...) the rails on the lift span are not connected to the rest of the rails. there is a separate power connector run to the rails on the lift span. since the rails are not connected, there slopes on the sides to help keep the rails aligned when the (...) (21 years ago, 29-Apr-03, to lugnet.technic, lugnet.trains)
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| | Re: drawbridge
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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
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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
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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
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(...) In my view one of the simpler ways is to shaft connect the two motors if you can... You can hide it if you have the sort of lift bridge that has an upper connection between the two towers. It may not always work though. (21 years ago, 29-Apr-03, to lugnet.technic, lugnet.trains)
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| | Re: drawbridge
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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: First Third Party product for the LEGO(r) Trains market?
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I've used a Centerline track cleaner for years with my N-Gauge trains. Their products are well designed and well made. And the people that own the company are a delight to deal with and always ready to strike a conversation at shows. But I have to (...) (21 years ago, 29-Apr-03, to lugnet.trains)
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| | Re: drawbridge
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I just got through purchasing 4 rotation sensors for that very reason for my lift bridge ((URL) - in Creations). I will be adding the 4 rotation sensors and an additional rcx to my bridge sometime this year. Out of 32 motors, I could never get 2 (...) (21 years ago, 29-Apr-03, to lugnet.technic, lugnet.trains)
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| | Re: drawbridge
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(...) I hope my bridge design spreadsheet worked okay for you. Your trusses look good! Nice work. Very nice! (...) I've hit a similar problem in planning out a crane. I've contemplated using two separate winches to lift the main hoist, but just like (...) (21 years ago, 29-Apr-03, to lugnet.technic, lugnet.trains)
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| | Re: drawbridge
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Very nice. We had a lift bridge in our last display as well, but it couldn't run very many times before the crawlers would de-synch. This is the best pictures of our new ones that I have: (URL) like it because it looks like Ross Neal is pushing the (...) (21 years ago, 29-Apr-03, to lugnet.technic, lugnet.trains)
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| | Re: Lego track cleaner
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Gee, this sound a lot like 2 idea I have for something similar. I'll upload a page with another kind of equipment of this type. Sonnich www.hot.ee/sonnich/lego/ (...) (21 years ago, 29-Apr-03, to lugnet.trains)
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| | Re: Lego track cleaner
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(...) This sounds interesting and fun. (...) Any chance of a picture soon? (21 years ago, 29-Apr-03, to lugnet.trains)
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| | Re: drawbridge
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(...) And they still get added. I think there are something faulty with the configuration of your news reader. It seems to add a lot of HTML or other code to translate some carachters. Best regards, /Tobbe (URL) SPAM when e-mailing) (21 years ago, 29-Apr-03, to lugnet.technic, lugnet.trains)
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| | Re: drawbridge
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(...) Regarding the bridge: How do you disconnect the rail when it's time to raise the bridge? That was a very odd way to raise it BTW, I've never seen that before (but then again I don't have a fetich towards bridges as of yet). And you have waaay (...) (21 years ago, 29-Apr-03, to lugnet.technic, lugnet.trains)
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| | Re: Lego track cleaner
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In lugnet.trains, Steven House writes: any other contraptions out there? Yes, I built a machine that is all battery powered. It consists of a double bogie (truck) vehicle which carries the battery box. Underneath is a spinning nylon bristle brush (...) (21 years ago, 29-Apr-03, to lugnet.trains)
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| | Re: Lego track cleaner
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(...) Very cool, and very bright ... think I might modify mine to include a cloth based second pass ... any other contraptions out there? (21 years ago, 29-Apr-03, to lugnet.trains)
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