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 Trains / 19906
19905  |  19907
Subject: 
Re: drawbridge
Newsgroups: 
lugnet.technic, lugnet.trains
Date: 
Mon, 28 Apr 2003 18:39:55 GMT
Viewed: 
270 times
  

Wow! Nifty. That's a nice big one! Where was it shown? Proto pics available
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:

http://www.brickshelf.com/cgi-bin/gallery.cgi?i=388957

And thanks Rick for de-"URL Encoding" the link... Undecoded it leads to one
of Kevin's pages, and Kevin L. gets enough publicity as it is. :-)



yes thank you for fixing the link.  some how some extra characters got
added in to the link.

i will be showing this at a talent show on may 10th.  i just finished it
yesterday.  it was such a nice day outside and i don't really have a flat
surface long enough to set it up in my house, so i set it up outside.  i
made this bridge from pictures of the real bridge and a little inspiration
from TJ Avery.  the hawthorne bridge is about a mile away from my office so
i spent a lot of time just looking at it.

you are right about synchronizing the motors.  one of the motors runs
faster than the other.  i made the string a little longer on one side.  so
when the bridge starts to go up it is a little lopsided, but by the time it
reaches the top it evens out.  not a very good solution but it works.

bob





¤º°`°º¤ø,¸¸,ø¤º°`°º¤ø¤º°`°º¤ø,¸¸,ø¤º°`°º¤øø¤º°`°º¤

Bob Kojima
ko@fial.com
http://www.bong69.com

Fial Incorporated
Telecom Monitoring Solutions
4343 SW Corbett Ave
Portland, OR  97201
503.227.7083
http://www.fial.com

Store your Volkswagen pictures at http://www.vw-pix.com
Inventory your Lego parts with        http://www.partscatalog.da.ru
Mass tag your ogg files with          http://www.togger.da.ru
Dual MP3 player                           http://www.dj6900.da.ru



Message has 5 Replies:
  Re: drawbridge
 
(...) 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) (22 years ago, 29-Apr-03, to lugnet.technic, lugnet.trains)
  Re: drawbridge
 
(...) 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 (...) (22 years ago, 29-Apr-03, to lugnet.technic, lugnet.trains)
  Re: drawbridge
 
(...) 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 (...) (22 years ago, 29-Apr-03, to lugnet.technic, lugnet.trains)
  Re: drawbridge
 
(...) 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 (...) (22 years ago, 29-Apr-03, to lugnet.technic, lugnet.trains)
  Re: drawbridge
 
(...) Yep.=20 (...) Whoa, buddy, not just the links -- they're everywhere :)=20 (...) Does =20 mean anything?=20 (...) Oh well. That doesn't keep it from being a cool bridge :)=20 (...) Hi.=20 (...) What's ^this stuff supposed to mean?^=20 Matt (...) (22 years ago, 5-May-03, to lugnet.technic, lugnet.trains)

Message is in Reply To:
  Re: drawbridge
 
(...) (22 years ago, 28-Apr-03, to lugnet.technic, lugnet.trains)

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