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question about vacuum pump
Posted: Mon Mar 22, 2010 7:05 pm
by kylehiroyasu
okay so i'm looking at buying a pump on ebay and im curious as to what im looking for? obviously it needs to be able to pull ~28hg (inches of mercury) but what else am i really looking for? another question is what is the significance of ultimate vacuum (measured in microns), what does this mean? help would greatly be appreciated! :]
Posted: Mon Mar 22, 2010 11:47 pm
by OAC
Joe Woodworker is the perfect place to check out! Answers all your questions. Not the one you wanting 28 inHg...:-) (I'm perfectly alright with 22 - 23, but that's me...)
http://www.joewoodworker.com/veneering/EVS/concept.htm
Posted: Tue Mar 23, 2010 8:04 pm
by kylehiroyasu
okayyyy, so after reading up about them a bit more i came up with this, will it work?
http://cgi.ebay.com/Thomas-Piston-Compr ... _617wt_958
This works too. and you can get a 2 yr repalcement for 19.99
Posted: Wed Mar 24, 2010 3:25 pm
by heliski989
Posted: Wed Mar 24, 2010 3:40 pm
by kylehiroyasu
THANK YOU! :]
Posted: Thu Mar 25, 2010 1:05 am
by OAC
And do as "Joewoodworker" says!
And you will have a solid set up! I made my "reservoir" a little bit bigger than the examples. For the purpose to evacuate my bag quickly. But that's up to you. Just experiment! Good luck!
Posted: Fri Mar 26, 2010 5:13 am
by H-man
beware that the little cheap vac pumps may not be designed to run for hours on end. The use of a reservoir and a pressostat regulator switch can reduce the running of the pump. Joewoodworker has these and there are some other designs over at dream-models com/eco/vacuumpump.html