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vacuum pump
« on: March 29, 2011, 12:30:26 AM »
Hi , has anyone had any joy converting a compressor to a vacuum pump? I have a vacuum table which works great when hooked up to a normal vacuum cleaner yet when I hook it up to a 2cfm vacuum pump the holding power is very poor. So perhaps a converted compressor is the way to go. thanks

Offline Greolt

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Re: vacuum pump
« Reply #1 on: March 29, 2011, 05:25:17 AM »
This is an old thread but it describes what I did to convert a compressor to vacuum,

http://www.cnczone.com/forums/281908-post39.html

Greg
Re: vacuum pump
« Reply #2 on: March 29, 2011, 08:16:23 AM »
Hey Greg, that's nifty for sure !
Is it still holding up ?
how many hours of operation have you gotten out of it ... roughly ?
And, where do you get that soft spongy O-Ring material ?

gjmoule, hope you don't mind the inquiry, very interesting.
Thanks,
Russ

Offline Greolt

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Re: vacuum pump
« Reply #3 on: March 30, 2011, 05:19:29 AM »
Yes it still goes.  But I don't use it much.

It is just as noisy as when it was a compressor.  I have close neighbours and noise is an issue for me.

So I bought a refrigeration mechanics vacuum pump which is very quiet.

If noise was not a problem it would still be used constantly.

The rubber I bought from a local engineering supplies.  Nothing special.  1/4" dia sponge rubber. (not foam rubber)

Greg