Re: [ATM] Tooling Up For Carbon Fiber

[Dan Indrigo <dindrigo@rogers.com>]

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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