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Vacuum pump

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alecsstefan
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Vacuum pump

Postby alecsstefan » Fri Jun 01, 2012 9:18 am

Hi, I want to build my first board and need advice about what pump I should use for vacuum bagging. Should I go for the fridge compressor route or will this little pump do the job:

http://www.ebay.co.uk/itm/20-Hg-12V-DC- ... 3cc6cb7644

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foam-n-fibre
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Re: Vacuum pump

Postby foam-n-fibre » Sat Jun 02, 2012 1:46 am

Hard to know if that will work, I don't know if anyone has tried one. The question is can it move enough air if there are a few small leaks, and also, how long can it run for? I don't know the answers to that though....

One thing to keep in mind is that even thoug they quote a certain flow rate, I think it gets lower when there is more vacuum, plus with what looks like small hoses, there can be losses in the system affecting that too.

Peter
Last edited by foam-n-fibre on Sat Jun 02, 2012 2:38 pm, edited 1 time in total.

BWD
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Re: Vacuum pump

Postby BWD » Sat Jun 02, 2012 6:09 am

pretty sure it's way too small.

alecsstefan
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Re: Vacuum pump

Postby alecsstefan » Tue Jun 05, 2012 9:09 pm

thanks for your replies, I went with the trusted refrigerator compressor route


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