Subject: Re: [baidarka] See Thru Folder
From: Paul Montgomery (paul@paddleandoar.com)
Date: Sat Nov 12 2005 - 18:28:51 EST
On Nov 12, 2005, at 7:15 AM, Tom Yost wrote:
> Paul,
>
> Nice looking frame. Now all you need to do is pick up a sheet of
> HDPE or perhaps
> a kitchen cutting board and make those snap-on connectors.
The plywood frames that are in the picture are not even marine
plywood. They are just test frames. ( I like to make my mistakes as
cheaply as possible! ) I plan on using 1/2" marine with HDPE
connectors, but probably only once. I just like to go through the
steps and find out how various materials and designs work for myself
( I was one of those kids who, even after stern warnings, would still
put my fingers in the fan ). The next one will probably be HDPE but
I plan on doing steam bent and aluminum tubing for the same boat.
> A German builder
> sent me a pic of a PP connector that is made of polypropylyene,
> but I'm not
> sure how flexible or strong they are. They look a bit too thin
> along the "snap"
> connector to me. He said they were used to hold electrical cables.
> They
> may be available in the US, but I've not seen them.
>
> http://www.yostwerks.com/PP.jpg
>
I would be a little leary of them as well. I think that it shouldn't
be such a problem to make snap connectors for aluminum cross frames
using HDPE. Use a router to dish out the surface the faces the
tubing. Then screw them on.
>
>> Also it looks like it might be a stronger frame that won't have a
>> tendency to 'buckle' in the middle under the weight of the user.
>
> It's possible that I'm defining "buckle" differentlly than you.
> but.....
>
> The deckridge, no matter the layout isn't going to effect
> "buckeling" as
> that simply isn't going to happen. I've paddled with no deckridge,
> and
> with all stringers disconnected from the stems, and the boat
> doesn't buckle.
Now that I think about it, that sounds about right. A canoe after all
has no deck ridge. But flex is really what I meant to say and I'm
thinking this design may reduce flex a bit. Maybe.
Paul Montgomery
paul@paddleandoar.com
-- Baidarka Mailing List - All postings copyright the author and not to be reproduced outside Baidarka or Baidarka archives without author's permission Submissions: baidarka@paddlewise.net Subscriptions: baidarka-request@paddlewise.net Searchable archive: http://rtpnet.org/robroy/baidarka
This archive was generated by hypermail 2b27 : Thu Dec 01 2005 - 01:30:01 EST
