Here you can exchange your experience and datas about your home build boards
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downunder
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Postby downunder » Fri May 24, 2019 8:23 am
You guys are kidding, right?
It is not about making a vacuum, but maintaining it for many hours. The fast epoxy is a bugger to work with for foil wings. I ruined complete mast with mid fast epoxy, luckily saved the core.
Ask yourself how much carbon etc costs and how much is a fridge compressor (which sometimes 'grows' on a side of the road
This:
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TomW
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Postby TomW » Fri May 24, 2019 10:25 pm
My vacuum pump is 12*10*10cm. Half the size of a toaster.
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thewindego
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Postby thewindego » Fri May 24, 2019 11:11 pm
Just get a vacuum pump off ebay...less than $100 and they can run all year non stop. Fridge compressor thing is maybe cheap but not worth the hassle. Carbon is expensive and you will need a lot of other consumables to make anything good anyway.
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downunder
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Postby downunder » Sat May 25, 2019 11:56 am
Actually I feel the opposite.
Have both, industrial General Electric lab vac pump, scored for 50$.
And a mid size fridge compressor for more $$.
Using only a fridge compressor b/c it is extremely quiet and can run non stop pulling the vac continuously. Both have term protection, which's a bugger sometimes!
The GE needs lubrications after 3y, or 1y heavy use. It is noisy as hell when left to run overnight...it pulls way more current, something not to take lightly.
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