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sawadee
Participant

Join Date: Feb 2012
Posts: 2

DIY Science Project Balloon Inflating/Contracting

02/06/2012 6:52 PM

Hi,

I want to make a helium balloon expanding and contracting repeatedly but not sure where to start (especially the air locking system).

I think of hacking the motor of this air pump http://www.amazon.co.uk/powered-electric-inflator-Inflates-deflates/dp/B005197SC8 but not sure how fast the expanding and contracting speed will be.

Any thoughts/comments would be much appreciated.

Thanks.
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Pathfinder Tags: Air balloon electrical circuit motor
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lyn
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Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#1

Re: DIY science project bolloon inflating/conmtraping

02/06/2012 6:58 PM

First, a MUCH MORE DETAILED explanation of what you really want to do is in order.

I'd ask some questions, but if you don't have any more of a firm grasp of what you want to do, it would be a waste of time.

Come back with a plan.

How old are you?
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sawadee
Participant

Join Date: Feb 2012
Posts: 2
#2
In reply to #1

Re: DIY science project bolloon inflating/conmtraping

02/07/2012 6:16 AM

HI, thanks for your reply. I'm a 26-year-old hobbyist and research student.
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Doorman
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Hobbies - DIY Welding - Don't Know What Made The Old Title Attractive... Popular Science - Weaponology - New Member United States - US - Statue of Liberty - 60 Year Member

Join Date: Apr 2009
Location: Yellowstone Valley, in Big Sky Country
Posts: 7425
Good Answers: 295
#3
In reply to #2

Re: DIY science project bolloon inflating/conmtraping

02/09/2012 9:20 AM

I believe a different sort of information may be more useful.

Things like:
Volume of helium involved
Is the exhausted helium from the baloon to be captured or vented
Number of cycles per second/minute
Why helium
Degree of instrumentation required/desired
Degree of accuracy required/desired
Valve actuation desired to be manual/electric/other

Those type of things.

__________________
 Semper Ubi Sub Ubi
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