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Post by portfox on Feb 15, 2008 9:41:19 GMT 10
Anyone played around with bagging equipment and bagged wings, tails or elevators before? I was looking at an option that i seen on the net where a guy used a food saver to extract the air. I know its really basic, but i thought i might ask the question.
maybe the proper equipment may be easier to get than what i think?
Steve
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zipper
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Off The Edge Sailplanes
Posts: 88
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Post by zipper on Feb 15, 2008 13:42:28 GMT 10
You can use any bag as long as you can get it sealed. To seal the ends I have used 10 aluminum U channel, folded the bag 2 or 3 times and then push the bag into the channel with a length of bungee cored that has a knot tied in each end just shorter than the U channel. It is better if you have the nylon tube as it stretches just enough to get in those tight corners. The best low budget vacuum pump is the fridge compressor, it will suck at 27" of mercury (full vacuum) all day. If you are bagging blue foam you wont need a vacuum switch to turn it on and off, but if you are bagging EPS you will have to reduce the vacuum as it will crush the foam.
Glenn
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Post by skyboyken on Feb 15, 2008 17:48:28 GMT 10
Another option to seal the ends of bags is a piece of wood dowel inside a square section piece of plastic extrusion which I think was originally for curtain tracks, but just double the bag over and push in the dowel and the vacuum does the rest.
I'm with Zipper, a fridge compressor running continuously does the job beautifully as long as you use blue foam.
The bags last quite a while but do need periodic replacement.
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Post by portfox on Feb 20, 2008 12:56:37 GMT 10
Thanks for the info, so its as easy as just getting hold of a pump(fridge) and working out which part 'sucks' pardon the pun and go from there? Sorry to ask a probably straight forward question.
S
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zipper
> 50
Off The Edge Sailplanes
Posts: 88
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Post by zipper on Feb 20, 2008 21:39:24 GMT 10
Its as easy as that, you might get some oil coming out of the blowing end, so dont get it to close to your job.
Glenn
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