[CR]Re: More about pins in frames

(Example: Framebuilding:Technology)

Date: Thu, 09 Mar 2006 07:03:24 -0500
From: <oroboyz@aol.com>
References: <70e14d4c0603080623k6b808d2eocec4f705a0233868@mail.gmail.com> <8C810E63F618415-153C-13A09@MBLK-R09.sysops.aol.com> <440F0F7C.5090009@df.unipi.it> <8C810F6E69F9862-D38-4897@MBLK-M14.sysops.aol.com> <440FEC30.2070600@df.unipi.it>
In-Reply-To: <440FEC30.2070600@df.unipi.it>
To: servadio@df.unipi.it
cc: classicrendezvous@bikelist.org
Subject: [CR]Re: More about pins in frames

Ha! Sergio, we will disagree on just this one point, because IF that glued joint or brazed joint wants to come apart and all that holds it is a little pin or two.... Well, even a school boy rider would be at severe risk! That would be too frightening to consider riding!

Dale Brown Greensboro, NC USA

-----Original Message----- From: Sergio Servadio <servadio@df.unipi.it> To: oroboyz@aol.com Cc: classicrendezvous@bikelist.org Sent: Thu, 09 Mar 2006 09:49:52 +0100 Subject: Re: More about pins in frames

I don't think that "pins" would hurt a carbon frame or aluminum frame, providing that adequate bonding agent (glue in these cases) was present in the joint.

> > BUT (and this makes this message vintage pertinent & On Topic) those > pins really don't reinforce anything, in steel or any other frame > building material. They just keep the tubes in their appropriate place
> until the actual bonding (brazing, gluing or whatever) takes place. > > After their job is done, the pins are redundant and hence Angel's > question asking if they were removed by builders after the building > process. > > Dale Brown >

Caro Dale, I beg to differ here. Any joint that would tend to unglue cannot but profit by having an added mechanical impediment to that. The improvement depending on obvious details.

Sergio
   Pisa
    P.s. Even a good cabinet maker adds wood pegs (no nails, please) to nicely fitted
   glued joints.