On Mon, Mar 21, 2016 at 5:37 PM, Chuck Guzis wrote:
>
> Interesting. If water evaporation accounts for the dimensional
> instability, why not use something that doesn't evaporate quite as easily?
> Say, ethylene glycol or a silicon oil?
I had this idea as well but I have not experimented with
On Mon, Mar 21, 2016 at 5:25 PM, Jules Richardson <
jules.richardso...@gmail.com> wrote:
>
> Interesting... so boiling them can make them expand too much, leaving them
> for a few weeks will allow them to contract, but they "remember" their
> manufactured size, such that a few weeks after they the
Off-Topic Posts"
Sent: Monday, March 21, 2016 7:37 PM
Subject: Re: Restoring Nylon parts (like the card guides in a PDP-8a chassis)
> On 03/21/2016 04:25 PM, Jules Richardson wrote:
>
>> Interesting... so boiling them can make them expand too much, leaving
>> them for a
On 03/21/2016 04:25 PM, Jules Richardson wrote:
Interesting... so boiling them can make them expand too much, leaving
them for a few weeks will allow them to contract, but they
"remember" their manufactured size, such that a few weeks after they
they aren't trying to return to their shrunken, p
On 03/21/2016 12:02 PM, Doug Ingraham wrote:
I was able to restore almost all the unbroken card guides on my 8a. A
couple of them had taken on a permanent bend due to excessive shrinkage.
Some had broken pins. A few of the pieces expanded too much and you could
plug them into the chassis but th
> On Mar 21, 2016, at 1:02 PM, Doug Ingraham wrote:
>
> A friend mentioned that there was a thread about the card guides in an 8a
> or 8e chassis but I was unable to locate it so I am posting this as a new
> thread as it has more relevance than just specifically those card guides.
>
> Nylon is
A friend mentioned that there was a thread about the card guides in an 8a
or 8e chassis but I was unable to locate it so I am posting this as a new
thread as it has more relevance than just specifically those card guides.
Nylon is hygroscopic. Hygroscopic means it has the ability to absorbs
water.
