To LUGNET HomepageTo LUGNET News HomepageTo LUGNET Guide Homepage
 Help on Searching
 
Post new message to lugnet.buildOpen lugnet.build in your NNTP NewsreaderTo LUGNET News Traffic PageSign In (Members)
 Building / 781
780  |  782
Subject: 
Re: Attaching a chain...
Newsgroups: 
lugnet.build
Date: 
Tue, 16 Feb 1999 14:58:57 GMT
Viewed: 
913 times
  
Joseph Garlicki writes:
Larry Pieniazek wrote:

This came up before in the context of how to attach bridge
counterweights. I seem to recall the consensus was that in that
application, using a gear that is pinned in place and does not turn
along with something to keep the chain from coming off the gear, is
about the best approach that we could come up with.

In your application, something a little more delicate may be required,
though.

++Lar

Robert Wallace wrote:

I'm working on a forklift design and would like to use the
Technic motorcycle chain (opened) to lift the forks.

The only problem (at the moment) is how to attach the chain
ends to the forks and the truck structure.


I once built a forklift using a similar method described by Larry above.
The difference was that I used a continuous chain loop. I believe that I
weaved the chain through two or three pinned gears to attach it to the
forks, and I didn't have to worry about attaching any other end because
the chain was a loop. Though you're not looking to use a continuous
chain, it was a simpler approach that worked for me.

-Joe-

I *have* played around with the pinned gear idea.  I used two 1x2 axle hole
bricks (stacked) with axles and two of the tiny gears, with the end of the
chain between the gears.  This works quite well, and I may end up using it
to hold the chain at the chassis-end.  It is a bit bulky for the forks,
however, though I'm leaning slightly toward Tim's rubberband idea,
substituting the white O-ring for a rubber band.  I believe it may be small
enough, firm enough (and inconspicuous enough) for the fork-end of the chain.

Still, I'm not giving up.  Maybe I'll get my Dremel out and cut a slot or
two in a brick or gently sand down a 1x1 plate-with-vertical-side-hook while
grinning fiendishly.  With occasional maniacal laughter.

Thanks, gentlemen.

Robert Wallace
robertw@netcom.com



Message has 1 Reply:
  Re: Attaching a chain...
 
(...) Hi Robert, saw your note and experimented a bit . What I found worked fairly well was to use two cam pieces, one 8 tooth(small) gear and one 16 tooth( next size up gear) one gear at each end of the cam. this gives you an assembly that is only (...) (26 years ago, 23-Feb-99, to lugnet.build)

Message is in Reply To:
  Re: Attaching a chain...
 
(...) I once built a forklift using a similar method described by Larry above. The difference was that I used a continuous chain loop. I believe that I weaved the chain through two or three pinned gears to attach it to the forks, and I didn't have (...) (26 years ago, 16-Feb-99, to lugnet.build)

7 Messages in This Thread:


Entire Thread on One Page:
Nested:  All | Brief | Compact | Dots
Linear:  All | Brief | Compact

This Message and its Replies on One Page:
Nested:  All | Brief | Compact | Dots
Linear:  All | Brief | Compact
    

Custom Search

©2005 LUGNET. All rights reserved. - hosted by steinbruch.info GbR