RE: [ATM] Tooling Up For Carbon Fiber

["David Grennan" <dave@webtreatz.com>]

Hi Rod.  Just a suggestion that crossed my mind.  What about using PTFE tape
(you know the stuff plumbers use for sealing joints) wrap that tight around
each joint.  You should be able to see where little holes get sucked in
through the tape.  For smaller leaks the PTFE tape might just be enough to
plug them anyway.  I used this to solve the opposite problem.  Air escaping
from a compressor.  Where a leak occured the PTFE bubbled like gum.

Just a though.  Good luck

David.

> -----Original Message-----
> From: atm-bounces@atmlist.net [mailto:atm-bounces@atmlist.net]On Behalf
> Of Dan Indrigo
> Sent: 19 April 2005 21:57
> To: Rod Shea
> Cc: atm@atmlist.net
> Subject: Re: [ATM] Tooling Up For Carbon Fiber
>
>
> Hi Rod,
>     The easy way is with an ultrasonic detector which is used to listen
> for the leaks but I'd try just listening first without one, you can
> usually hear the bigger leaks. You could also try creating a bit of
> smoke and see where it get's sucked in.
>
> Dan
>
> Rod Shea wrote:
>
> >This may be a little of topic, if so, I apologize, and please
> fell free to reply off list.  I'm setting up a vacuum press to
> make a 13.1" CF travel dob.  Can someone point me to a resource
> for troubleshooting a vacuum setup?  I have cobbled together a
> pump, check valve, vacuum gauge, vacuum switch, and glue trap.
> If I plug the input (where tubing would go to the bag)  I can
> pull -23T, which drops to 21 in about 3 minutes, with or without
> a vacuum reservoir.
> >
> >Is this reasonable, or do I need to find and fix leaks?  If so,
> what is a good way to do this?    I have made sure the pipe
> joints are tight.  Most ways I find online to detect vacuum leaks
> seem to depend on detecting, in some way, stuff, like starter
> fluid, leaking into your engine by the idle changing, or looking
> for a new peak in your mass spectrometer.  There must be a way to
> do this with a simpler setup like this, Or am I left with "Make a
> joint, check it with a vacuum gauge." for each joint?
> >
> >Thanks,
> >
> >Rod
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> >
> >
> >
>
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